BRISTILE ROOFING TECHNICAL MANUAL
CONTENTS INTRODUCTION
COMPANY INFORMATION
ROOFING FACTS ROOF DESIGN
WARRANTIES
Essential
1.1
Specifications
1.1
Local Authorities
1.1
Behaviour
1.1
Standards
1.1
Roofing Terminology
1.2
The Bristile Story
2.1
Customer Service
2.2
Contact Information
2.4
Roofing Facts
3.1
Design Considerations
4.1
Wind Categories
4.2
Terrain Categories
4.3
Fixing Requirements for Tiles and Accessories
4.5
Batten Sizes and Rafter Spacings
4.8
Rafter Lengths and Pitches
4.9
50 Year Product Warranty (Concrete)
5.1
Colour For Life Warranty (Terracotta)
5.2
10 Year Installation Warranty (Concrete & Terracotta) 5.4
ROOF PREPARATION
Roof Preparation Requirements
6.1
Working at Heights
6.2
Roof Frame
6.2
Exposed Rafter
6.3
Valleys
6.4
Fascia Set Up
6.5
Flashings
6.6
Dutch Gable Flashings
6.6
Abutment Flashings
6.7
Vent Pipe Flashings
6.9
Chimney Flashings
6.10
Box Gutter Flashings
6.11
Special Barge Flashings
6.11
Mansard Roof
6.12
Change of Pitch Flashings
6.12
Barge
6.13
Anti-Ponding Boards
6.14
TILE INSTALLATION
Laying Tiles
7.1
Battens
7.1
Security Fixing to Rafter
7.1
Joints in Battens
7.1
Hip & Valley Joints
7.1
Metal Battens
7.1
Timber Batten Fixing
7.2
Metal Batten Fixing Sarking
7.2 7.3
Laying
7.3
Over-lapping Sarking
7.3
Obstacles in the Roof
7.3
Use of Security Pads
7.3
Sarking at Eaves
7.3
Sarking Support
7.3
Sarking at Valleys
7.3
Valley Construction
7.4
Laying of Tiles
7.5
Batten Set Out
7.5
Vienna Profile Set Out
7.6
Swiss Profile Set Out
7.6
Marseille Profile Set Out
7.7
Roman Profile Set Out
7.8
Loading
7.8
First Course
7.8
Laying
7.8
Blending Securing of Tiles
7.8 7.9
Tile Clips
7.9
Nails
7.9
Steep and Vertical Pitch Securing of Accessories
7.9 7.10
Accessory Tiles
7.10
Laying
7.10
Ridge
7.10
Hip
7.11
Wing Ridge
7.12
Steep Pitch
7.12
Valley Tiles
7.12
Fire Walls
7.13
Bush Fire Protection
7.13
Barge/Gable
7.13
Bed & Point Finish
7.14
Concrete and Terracotta Barge Installation
7.14
Concealed/Secret Gutter Finish
7.15
Bed and Point Materials
7.15
Mortar Mix
7.15
Application
7.15
Flexible Pointing
7.15
Application
7.15
Roof Completion
7.15
Caring for your Roof
7.16
CONCRETE TILES
BRISTILE TERRACOTTA
ARCHITECTURAL DRAWINGS
CASE STUDY
Bristile Concrete Tiles
8.2
Yeoman (Shingle and Shake)
8.3
Villa
8.4
Lodge (Striated and Smooth)
8.5
Chateau
8.6
Bristile Concrete Tile Accessories
8.7
Marseille
9.1
Vienna
9.2
Swiss
9.3
Roman
9.4
Bristile Terracotta Tile Accessories
9.5
Bed and Point Barge Board Set Up o Change of Pitch (45 or less) o Change of Pitch (More than 45 )
10.1
Chimney Flashing
10.4
10.2 10.3
Chimney Tray
10.5
Concealed Flashing to Gable End
10.6
Concealed Gutter Flashing to Abutment
10.7
Counter Batten
10.8
Dutch Gable Detail
10.9
Exposed Rafter
10.10
Concrete Barge Tile
10.11
Terracotta Barge Tile
10.12
Fascia Set Up
10.13
Flashing at Timber Side Abutment
10.14
Flashing to Brick Abutment
10.15
Flexible Pointing
10.16
Installed Sarking
10.17
Hip End
10.18
Mansard Detail
10.19
Wing Ridge
10.20
Standard Ridge Cap
10.21
Steep Pitched Ridge
10.22
Stepped Cover Flashing
10.23
Fire Wall Set Up
10.24
Valley Finish
10.25
North Lakes Retirement Village
11.1
Stellar at Carina
11.5
Tamari Place
BROCHURES
8.1
Hacienda
11.9
Hunters Green
11.13
Van Baak - Balinese Residence
11.17
REFERENCED DOCUMENTS This manual refers to and recommends the consideration of the following documents. AS Australian Standards AS 1397
Steel sheet and strip - Hot-dipped zinc-coated or aluminium zinc-coated
AS 1684.2
Residential timber-framed construction – Non-cyclonic areas
AS 1684.3
Residential timber-framed construction – Cyclonic areas
AS/NZS 1170.0 Structural design actions - General principles AS/NZS 1170.1 Structural design actions - Permanent, imposed and other actions AS/NZS 1170.2 Structural design actions - Wind actions AS 1720.1
Timber structures - Design methods
AS 2049
Roof tiles
AS 2050
Installation of roof tiles
AS 2334
Steel nails - Metric series
AS 3500.3.1
National plumbing and drainage - Storm water drainage Performance requirements
AS 3566.1
Self-drilling screws for the building and construction industries General requirements
AS 3959
Construction of buildings in bushfire-prone areas
AS 4055
Wind loads for housing
AS/NZS 4200.1 Pliable building membranes and underlays - materials AS/NZS 4200.2 Pliable building membranes and underlays - installation requirements AS/NZS 4600
Cold-formed steel structures
AS/NZS 4046
1-9 Testing Standards
FOREWORD This manual has been prepared by Bristile Roofing to assist building industry professionals who are either constructing or designing roofs that use our concrete or terracotta roof tiles. It is not possible to cover every situation that may eventuate in this manual, therefore Bristile Roofing is prepared to consult on any exceptional circumstances that may occur.
This manual is intended as an industry guide but does not replace the experience and good trade practice required to obtain a quality roof installation. The details in this manual are provided only as a guide for builders and designers when dealing with typical roof construction scenarios. It is still the responsibility of the designer and builder to ensure that the roof structure satisfies all relevant construction codes and Australian standards.
INTRODUCTION ESSENTIAL The utmost care has been taken in compiling this manual. Bristile Roofing is not liable nor responsible for the contents of the manual (including any printing or typographical errors) and urges that all standards and recommendations are checked independently. Note: Instructions and details in this manual refer to both concrete and terracotta tiles (unless expressly noted).
SPECIFICATIONS Bristile Roofing advise that material contained is this manual is correct at the time of printing, specifications are subject to change without notice.
LOCAL AUTHORITIES Product specifications and installation standards contained within this manual are minimum recommendations based on Australian good trade practice. The appropriate fixing standard for specific regions will vary in accordance with the environmental conditions. Where applicable, it is advised Bristile Roofing’s local office be consulted, together with other local authorities.
BEHAVIOUR Bristile Roofing roof tiles will behave as documented if installed in accordance with good trade practice and following the recommendations contained in this and other relevant manuals. Preferred methods and standards of fixing tiles are documented in this manual which includes the complete range of Bristile Roofing roofing tiles. Consider the following points: » Impress the highest standards of trade practice to guarantee attractive and enduring roof finishes » Encourage affinity between overlapping trades on the building site » The full range of products may not be available or applicable to all states at this time » Consistent installation methods are stated, but this may vary from state to state, gain advice from local authorities. » High wind areas require special installation standards » Uncoventional building designs and materials
STANDARDS Australian standards and installation specifications should be adhered to when installing roofing tiles. These standards and specifications are provided to convey up-to-date information for industry (architects, building contractors as well as purchasers and installers). Where ever a standard is referred to in this manual it will be the most current version of that standard.
Bristile Roofing TECHNICAL MANUAL
1.1
ROOFING TERMINOLOGY
1.2
Bristile Roofing TECHNICAL MANUAL
ABUTMENT
Where the roof tiles meet a structure above the roof line.
ACCESSORY
A product (concrete or terracotta) used to complete the roof eg. apex, ridge and barge tiles.
“A” FRAME ROOF
Steep pitched gable roof, each pitch extending from near ground line to meet at the ridge.
APEX
The intersection of all ascending hips where they meet either a ridge or another ascending hip. Note: Also the name of a three or four-way fitting used to cover this point.
APRON FLASHING
A one-piece flashing, such as is used at the lower side of a chimney that penetrates a sloping roof.
BARGE BOARD/VERGE BOARD/GABLE BOARD
A sloping board installed to the pitched edges of a gable, covering the ends of roof timbers.
ANTI-PONDING BOARD
A sarking or underlay-support of various materials, (galvanised iron, fibrous cement etc), installed along the eaves lines from the top of the fascia back to the rafter with a clearance of 10mm below the first batten. This prevents water “ponding” behind the fascia. Anti-ponding boards should be installed on all low pitched roofs or roofs with no overhang.
BARGE COURSE/VERGE COURSE
The tiles next to the gable.
BASTARD VALLEY OR HIP
A valley or hip formed in an abnormal or non-parallel line on which tiles are fixed.
BATTEN (METAL)
Metal battens shall be designed in accordance with AS 4600. They shall be manufactured from galvanised steel, of at least commercial grade, with a corrosionresistant coating with a minimum thickness of 300g/m of zinc.
BATTEN (TIMBER)
Timber battens are nailed to the roof frame and support the tiles at the correct set out. Timber battens are supplied in various dimensions depending on the roof specifications are being satisfied. Timber battens must comply with specifications detailed in AS 1684.2, AS 1684.3 or AS 1720.1 as appropriate.
BEDDING
A composition of clean, sharp sand and cement for fixing ridge capping on hips and ridges. The edges are finished off with a pointing material.
BELLCAST BATTEN (TILTING BATTEN)
A batten installed on the toe of the rafters in a vertical line with the plum cut, to keep the eaves course of tiles on the same rake as the other courses. (The fascia board usually serves this purpose).
BOND
The system of aligning tiles on the roof in relationship to each other. With a straight bond, the sides of tiles form straight lines from bottom to top course. With a staggered, broken or cross bond, tiles in each alternate course overlap, by half, the tiles above and below them.
BOX GUTTER
An internal roof gutter between the slopes of a roof or a roof and a wall that discharges water internally through a sump.
CAPILLARY BREAK
A groove or space left between two surfaces, large enough to prevent capillary movement of water into a building.
CEILING JOISTS
The joists that carry the ceiling and also form a tie between the feet of the common rafters.
CLEAT
A small piece of wood that reinforces another, or is used to locate positively another timber.
CLIPPING BATTEN
A batten installed to the rafters directly behind the fascia. The clipping batten is used for installing the bottom course of tiles when sarking is not specified. Generally it is only used on homes with metal fascias, and only in high wind areas.
COLLAR TIE
The timber used to connect two rafters at or near their centres.
CONCEALED GABLE FLASHING
Subject to regional specification in the use of the galvanised metal flashing, a concealed gable flashing is a fibre cement verge strip running to the gutter line.
COUNTER BATTENS
A batten normally installed on top of and parallel to the rafters over the ceiling lining, where the ceiling lining is fixed on top of the rafters (exposed beams). Tiling battens are then installed to the counter battens, creating an air space which allows sarking to dish between the rafters.
DORMER OR DORMER WINDOW
A vertical window or opening, coming through a sloping roof, usually provided with its own-pitched roof.
DORMER CHEEK
The upright side to a dormer.
DUTCH GABLE
A roof that has a gable near the ridge, with the lower part hipped.
EAVES
The lowest over hanging part of a sloping roof which provides beyond the external wall.
EAVES FASCIA
A board on edge installed along the feet of the rafters. It often carries the eaves gutter along the eaves.
EAVES OVERHANG
The inclined distance (line of rafter) from the outside of the external wall to the inner face of the fascia.
EAVES WIDTH
The horizontal distance from the inner face of the fascia board to the outside of the external wall.
EDGE OF ROOF
The area of a roof bounded by the eaves, ridge and barge, extending towards the centre of the roof for a distance equal to 0.1 multiplied by the minimum plan dimension of the building, measured from eaves to eaves, or barge to barge.
FACADE
The face or front of a building.
FALL
The slope or pitch of a roof or gutter.
FASCIA BOARD
A wide board set vertically on edge and fixed to the rafter ends or wall, which carries the gutter.
Bristile Roofing TECHNICAL MANUAL
1.3
1.4
Bristile Roofing TECHNICAL MANUAL
FLEXIBLE POINTING
A highly pliable yet durable compound which, once cured, forms a mechanical fixing between the tile and ridge capping.
HIGH WIND AREA
Areas in which the basic design and wind velocity, modified for terrain and height in accordance with AS 1170.2 and AS 4055 to give a wind classification of N3 or greater.
HIP
The edge formed by the meeting of two parallel pitched roof surfaces.
HIP BOARD HIP END TILE
The board, set on edge, at which the hip rafters meet.
HIPPED ROOF (END)
A gable roof which has two additional sloping planes at either end of the roof.
LAP HEAD OR END LAP
The distance by which one course of tiles overlaps the course below.
SIDE LAP
The distance by which one tile interlocks with the tile beside it.
LIFTS LOADING
Roofing trade term for stacks of tiles around the roofs.
A sloping triangular roof fitting designed to cover the end of a hipped roof.
The installing requirements and materials for sarking, battens, tiles and accessories etc, specified by the tile manufacturer as sufficient to withstand the loading requirements of AS 1170.0, AS 1170.1 and AS 1170.2.
MANSARD ROOF
A roof structure with two pitches. The steep pitch commences at the eaves, and intersects with the lower pitch, which finishes at the ridge. Tiles on the lower pitch overhang the steeper pitch by a slight margin.
MOTTLE
Used to describe the laying of various coloured tiles at a consistent percentage throughout the roof.
PARAPET WALL
Usually a brick or timber structure that rises above the roof line.
PICKING UP
The term used when the tiler is trowelling off any excess mortar that may overhang the ridge capping after bedding.
PITCH
The angle or slope of the roof surface to the horizontal expressed either in degrees or as a ratio, eg 15째 or 1:3.75.
RIGID POINTING
A mixture of clean sand, cement and oxide colouring used for the completion of joints between ridge or hips and with roof tiles or tiles at gable ends. (Obsolete method that has been replaced by flexible pointing.)
PROFILE
The shape and design of the tile.
UNDER PURLIN
A horizontal member in a roof at right angles to the principal rafters or trusses. It carries the common rafters.
RAFTER
A sloping member that extends from the eaves to the ridge of a roof to support roofing material.
COMMON RAFTER
The main support rafter of the slope between eaves, wall plate and ridge.
CRIPPLE CREEPER RAFTER
The rafter connecting a hip and valley.
CRIPPLED JACK OR BROKEN HIP RAFTER
A rafter connecting the end of a ridge to a valley.
HIP RAFTER
A rafter following the line of the intersection of two roof planes.
HIP CREEPER RAFTER
A rafter connecting a wall top plate and hip.
JACK OR CROWN END RAFTER
A rafter installed at the end of a ridge and the meeting point of two hips.
PRINCIPAL RAFTER
An upper member in a truss that has the same inclination as the common rafters.
VALLEY RAFTER
A rafter following the line of the internal intersection of two roof surfaces.
VALLEY CREEPER RAFTER
A rafter connecting ridge and valley.
RAKE
The roof’s angle of inclination from the horizontal.
RIDGE
The horizontal line where two planes of a roof meet together.
RIDGE BOARD
The horizontal board, set on edge, at which the rafters meet.
RIDGE CAPPING
A roof fitting used to cover the ridge-line that can be either ‘V’ shaped or arched (rounded). This generally consists of a specifically made tile used for both the ridge and hips of a roof.
ROOF
A covering to protect a building from the elements.
ROOF TILE
A concrete or terracotta product used to cover the field of the roof.
SARKING OR UNDERLAY
A reflective, pliable membrane that is installed under the tile battens and conforms to AS/NZS 4200.1.
SAWTOOTH ROOF
A roof structure that is vertical on one side with a slope down from the ridge line on the other.
SECRET GUTTER
A gutter usually fixed against a wall adjoining the roof slopes, concealed by the roof covering and vertical wall flashing, then spilling into an eaves gutter.
SCRIBE BOARD
A type of barge board shaped to match the over hanging profile formed by the under surface of roof tiles that overhang a gable end. The tiles are pointed up on the interlocking joints.
SKILLION
The term for a pitched roof with one plane.
SKYLIGHT
A glazed window or translucent roof section fitted parallel to the roof slope to admit light.
SHEATHING
A close boarding or other material nailed to the frame work of a wall or roof. Sometimes referred to as sheeting.
Bristile Roofing TECHNICAL MANUAL
1.5
SOFFIT
The lining installed under the eaves between the fascia board and external wall.
SOFFIT BEARER STORM SEAL
Timber or metal used to support the soffit.
STAGGERED BOND
The method of laying tiles where the vertical joint of every tile is laid to overlap with a half bond of the tiles in the course below.
STARTER/SHELL END STRAIGHT BOND
The first hip cap at the lowest point of the hip line.
STUD TOP PLATE
A vertical wall support.
TILTING BATTEN TILE CLIP
Serves the same purpose as a bellcast batten.
Bristile Roofing TECHNICAL MANUAL
Where tiles are not staggered but are laid directly on top of the tile in the course below, so that the vertical joints form one straight line up the slope of the roof.
The horizontal member above a wall on which the truss or rafter sits.
A specially formed metal fastening used to secure tiles to supporting members.
TRUSS ROOFS
A roof supported by self-supporting, triangulated structural framework which is, usually prefabricated and delivered to the job site. This type of construction is commonly used for all types of roofs.
UPRIGHT WORK
Tiling carried out on a roof pitched close to vertical, normally on a facade or a mansard roof.
VALLEY
The internal angle formed by the meeting of two sloping surfaces of a roof; the opposite of a hip. A valley iron/tray is installed in this area to direct water to the gutter.
VALLEY BATTEN
A tiling batten fixed parallel to each side of the valley board. It must be fixed on all valley where the roof is sarked.
VALLEY IRON/VALLEY TRAY
A “V� shaped sheet lipped on each outside edge and formed to fit into the angle of a valley.
VENT
Any pipe or tube projecting through the roof covering, normally circular in shape.
VERGE WEEPHOLE
The edge of a sloping roof that overhangs the gable.
Z FLASHING
1.6
A bitumen impregnated foam strip used to weather proof areas of roof to prevent water penetration during storms, can be flexible pointed.
A small hole (6mm in diameter) inserted into the ridge bedding and pointing line at the water-channel of the tile to allow drainage of water. Normally a galvanised strip with an internal lip fixed under the cement verge strip and run into the gutter line.
THE BRISTILE STORY “TODAY, THAT SMALL ROOF TILE COMPANY HAS DEVELOPED INTO ONE OF AUSTRALIA’S BIGGEST SUPPLIERS OF CONCRETE AND TERRACOTTA ROOF TILES PRODUCING UP TO 250,000 UNITS PER DAY FROM THREE PLANTS”. In 2700BC the Chinese first developed the glazed terracotta roof tile and they have been a reliable and sought after roofing product ever since. The refinement of concrete roof tiles into a long lasting and cost effective roofing material happened in the middle of the 19th century. The versatility of both products has seen them become popular in such diverse markets as Europe, North America and Asia. Terracotta tiles were first introduced to the Australian market in 1916. In 1929 Mr. Lance Brisbane established the terracotta division of our business in Perth, Western Australia. Thanks to Mr. Brisbane, from whom the company took its name, and the hard work of dedicated employees through the years, the Bristile brand became synonymous with building products of the highest quality. Concrete tiles were first marketed in the late 1940’s and roof tiles, whether concrete or terracotta, quickly became the roofing material of choice due to their durability, profile variation and selection of colours. In 1974, Besser Roof Tiles (as the company was then known) entered the Queensland market offering one tile profile in eight colours. In those days maximum output was 20,000 tiles per day. In time the company expanded into New South Wales, building factories in Grafton and Sydney. The Pioneer group purchased the company in 1989 and oversaw further development during the next decade
including the incorporation of the famous Victorian brand Nubrik which had first made concrete tiles in 1972 under the Whitelaw Roof Tiles brand. Today, these various roof tile companies, which first started serving the Australian market over 75 years ago, have combined. Now known as Bristile Roofing, we are one of the country’s largest suppliers of concrete and terracotta roof tiles producing up to 250,000 units per day from three plants, with a comprehensive range of more than 40 colours and seven profiles. Bristile Roofing is part of the national Brickworks group of companies which includes other famous Australian brands like Austral Bricks, Eureka Tiles Australia and Auswest Timbers. There have been a lot of changes over the years, but one thing that has not changed is our desire to provide our customers with the very best quality products and service. Our focus on quality gives us the confidence to provide a written 10 year installation warranty on our concrete and terracotta product and a 50 year product warranty on our concrete range of tiles. Bristile terracotta products are covered by our famous “Colour for Life” warranty that states they will retain their colour for life. For more information on any of our products please call 1300 274 784 or visit our website at www.bristileroofing.com.au
Bristile Roofing TECHNICAL MANUAL
2.1
CUSTOMER SERVICE PRODUCT AND TECHNICAL INFORMATION Comprehensive product and technical advice is available for the full range of Bristile concrete and terracotta roof tiles at any of our offices Australia wide or via the web at www.bristileroofing.com.au
OUR REPRESENTATIVES Bristile Roofing sales staff are fully trained to assist you with enquiries concerning pricing, product and technical information, selection and installation, regardless of whether you’re building a new house or simply re-roofing.
SAMPLES Staff at all our sales centres can arrange product samples from our comprehensive range of products. Call 1300 274 784 to request any required samples.
2.2
Bristile Roofing TECHNICAL MANUAL
INSTALLATION AND SERVICE Customers can be provided with supply and fix quotations based on their working drawings. Our helpful staff can answer any technical or colour selection queries at the same time. Bristile Roofing offers an installation service in most areas using one of our fully qualified and highly experienced sub-contractors. Alternatively in some regions of Australia, Bristile Roofing recommends the roofing services of independent tiling contractors and distributors.
ON-SITE DELIVERY Bristile Roofing tiles are delivered ready for immediate use. For difficult sites, all terrain forklifts may be used to ensure correct placement of tiles.
ENVIRONMENT, HEALTH & SAFETY Environment, health and safety are major considerations that Bristile Roofing recognise as an integral part of our business. We are all responsible for: » Preventing injury » Preventing occupational illness » Minimising the negative environmental impact our activities may cause » Complying with all legal requirements The Bristile Roofing Environment, Health and Safety policies detail our defined responsibilities.
Bristile Roofing TECHNICAL MANUAL
2.3
OFFICE CONTACT DETAILS NATIONAL LOCAL CALL NUMBER 1300 274 784
QUEENSLAND BRISBANE (Head Office Queensland / East Coast)
164 Viking Drive WACOL, QLD 4076 P.O. Box 3040 DARRA, QLD 4076 Ph: 07 3212 2444 Fax: 07 3212 2499
GOLD COAST
3 Central Avenue WEST BURLEIGH, QLD 4220 Ph: 07 5593 8420 Fax: 07 5593 8489
TUGGERAH
19 Bryant Drive TUGGERAH, NSW 2259 Ph: 02 4351 5500 Fax: 02 4351 3300
PORT MACQUARIE
42 Jindalee Road PORT MACQUARIE NSW 2444 P O Box 5349 Ph: 02 6581 1533 Fax: 02 6581 0618
HORSLEY PARK (Head Office NSW)
738 - 780 Wallgrove Road HORSLEY PARK NSW 2164 P O Box 2164 Ph: 02 9830 7888 Fax: 02 9830 7889
NEW SOUTH WALES
VICTORIA VICTORIA / PLANT (Head Office Victoria)
41 – 55 Elliott Road DANDENONG, VIC 3175 P.O. Box 4068 DANDENONG SOUTH, VIC 3164 Ph: 03 8710 8710 Fax: 03 8710 8700
SOUTH AUSTRALIA SOUTH AUSTRALIA (Joint Bristile Roofing & Austral Bricks) Greenwith Road, GOLDEN GROVE SA 5125 P.O. Box 26 SURREY DOWNS SA 5126 Ph: 08 8282 6331 Fax: 08 8288 7264
WESTERN AUSTRALIA CAVERSHAM (Head Office West Coast)
Bristile Roofing (East Coast) Pty. Ltd. ABN 77 090 775 634
2.4
Bristile Roofing TECHNICAL MANUAL
Harper Street, CAVERSHAM WA 6055 Locked Bag 100 MIDLAND WA 6936 Ph: 08 9261 9999 Fax: 08 9379 2649
ROOFING FACTS
Bristile Roofing TECHNICAL MANUAL
3.1
LONG LASTING Bristile Roofing is so confident of our tiles’ quality and durability, we offer a 50 year product warranty on our concrete tiles and our famous “Colour for Life” warranty on our terracotta products.
PROFILE RANGE Design often determines the choice of roofing materials. Individual colour and style selections can create an impression or make a statement that will help a roof stand out, or alternatively blend in with the existing street scape. Our wide range of colour choices, finishes and shades combined with traditional and contemporary tile profiles can be utilised to create the desired roofing effect. Our expert product consultants take the hard work out of choosing the correct tile, assisting in finding the style and colour that will best compliment your home, taking the time and worry out of choosing the right tile to create that individual look.
STRENGTH AND ENDURANCE Bristile Roofing’s concrete and terracotta tiles are made to meticulous strength specifications ensuring Australian Standards are met. Terracotta has been used for thousands of years as its both durable and attractive. Whilst concrete is strong and dense ensuring the roofing tiles are waterproof and long lasting. Tests on product that has been installed for a period of time show that concrete tiles actually strengthen as they age.
HEAT RESISTANCE Concrete and terracotta are non-combustible materials and therefore provide excellent protection against bushfires. Bristile Roofing offers relevant advice for houses being built in bushfire prone areas on page 7.13 of this manual.
ABSORPTION The amount of water absorbed by roof tiles is minimal. Bristile Roofing tile products are manufactured to NZS 4206 which states that a tile can not absorb more that 10% of its dry weight after total immersion in water.
3.2
Bristile Roofing TECHNICAL MANUAL
THERMAL MASS Relative to other roofing materials concrete and terracotta tiles have a high mass. This mass evens out temperature fluctuations by storing, and then releasing heat energy during the day and night.
WIND RESISTANCE The benchmark in roof fixing systems was developed and fully tested at the James Cook University Testing Laboratories in Townsville. The products and fixing methods of this tested system are used when installing all Bristile roofs fitted in high wind locations. These products are benchmarks throughout Australia and are exported worldwide.
RUN-OFF The water collected off a tile roof is just as safe to use as it is from any other roofing material. Non lead flashings are now available and can be used where roof runoff is intended to be used for potable water. Note: The greatest potential for the contamination of water collected from any roof is the organic material that collects in the gutters. To avoid contamination of collected water, the roof should be installed with a first flush system and/or be cleaned regularly.
MARINE EXPOSURE Bristile Roofng tile products are manufactured to AS 2049/NZS 4206 and are certified exposure grade after required testing. This makes them an excellent choice for homes built in severe marine environments.
COLD CLIMATE Modern concrete and terracotta roof tile products manufactured to AS 2049/NZS 4206 need to pass the freeze and thaw test described in AS 4046.6. This makes them an ideal choice for homes built in frost or snow prone areas.
CONDENSATION A tiled roof can “breathe�, minimising the need for insulation against the corrosive effects of condensation that can affect other roofing materials.
Bristile Roofing TECHNICAL MANUAL
3.3
SOUND INSULATION The density of roof tiles ensures that your roof tiles make less noise, ensuring quiet enjoyment in your home. The creaking and tapping sounds associated with other roofing materials often have to be masked with insulation. The density of tiles acts as a natural sound barrier to any external noise.
AFFORDABILITY Considering the critical role they play, roof tiles are surprisingly affordable. A tile roof constitutes about 5% of the cost of a new home, slightly less for concrete, slightly more for terracotta roof tiles. It’s worth getting a quote just to make the comparison yourself. The value of terracotta is not just in its beauty and longevity, but in the appreciable amount it can add to the real estate value of your home.
COLOUR RANGE CONCRETE TILES The colour coating on concrete tiles is purely decorative, and plays no role in any protective or water proofing function. Over several years, the colour coating of your concrete tiles will take on a more subdued, matt appearance because of the effects of air pollution and powerful UV rays from the sun. TERRACOTTA TILES Because they are fired, the colours of both glazed and natural terracotta tiles are colour fast, which means home owners have peace of mind in the knowledge that their new roof will not change greatly in its appearance for the life of the home. No other roofing material can make this claim. For more details see Bristile Roofing’s “Colour For Life” warranty.
RE-ROOFING It’s worth noting that there may be little difference between the cost of installing a new tiled roof or having an existing roof repainted, so consider getting a quote before you proceed. If you do want to re-paint your roof contact Bristile Roofing and we can refer you to a reputable local roof restoration firm.
CLEANING Like any roofing material, tiles can become dirty or mossy. Whether you choose to clean them yourself or hire a tradesman, moss, lichen and grime can be easily removed using a high pressure water spray and suitable cleaning agent.
NATURAL SALTS Occasionally, the natural salts within a concrete tile may migrate to the surface as a whitish grey discolouration called efflorescence. This has no effect on the performance of the tile. Although common to many concrete products, efflorescence is relatively rare in concrete tiles. If it does occur it will usually weather off naturally over time.
3.4
Bristile Roofing TECHNICAL MANUAL
DESIGN CONSIDERATIONS When designing new roofs Australian Standards AS 1170.2 and AS 4055 are to be considered, in conjunction with: a) The regional design wind speeds b) The terrain category of a building site c) The Technical Record 440 (TR440) extension of this code, believed to be the standard for the design of products for most cyclonic areas. Applicable in Australia to areas north of the latitude 250 south, and within 50kms of the coast (including off shore islands). d) State and/or local statutory authority requirements and covenants. Exceptional considerations may apply to the site in relation to items a), b) and c) The installation specifications given in this manual are based on a basic wind speed for greatest strength of 60m/s at a height of 6m from ground level. Suitable for sites in Regions A and B. It is advisable to consult both your building engineer and local Bristile Roofing office in relation to designated cyclonic area installation specifications areas i.e. Regions C and D. This section will cover Bristile Roofing recommended installing specifications based on the design gust wind speed, as well as: a) Minimum roof pitch requirements b) Maximum rafter length requirements c) Batten requirements and rafter and truss spacings d) Batten installing requirements e) Sarking installation requirements Specifiers are advised to determine local requirements before proceeding, noting that relevant local authorities may implement special specifications to the final structure. It is also advisable to consult your local Bristile Roofing office, as they may recommend installing specifications based on regional experience.
STORM WATER DRAINAGE: CODE CONSIDERATIONS:
STANDARDS:
WIND FORCES:
The National Plumbing and Drainage standard AS 3500.3.1 should be consulted to determine the best solutions for managing stormwater run off from a roof.
The design of a roof requires the consideration of many building codes and standards. The following sections and tables summarise the major design requirements applicable to roof tiles. These requirements are by no means exclusive, as there may be any number of local regulative requirements and covenants. Specifiers are advised to ensure they have fully determined the local requirements.
Bristile Roofing products comply with the following standard: AS 2049 Roof Tiles. Bristile Roofing fixing complies with the following standard: AS 2050 Installation of Roof Tiles. Bristile Roofing complies with the following standard when installing sarking: AS/NZS 4200.2 Pliable building membranes and underlays – installation requirements.
Wind forces must be considered when designing or specifying roof structures and roofing materials. The forces involved may take the form of positive or negative pressure (suction). The magnitude of these forces is affected by regional wind velocities, exposure and building configuration. The methods for determining these are set out in Standards Association of Australia Loading Code for Wind Forces AS 1170.2. As an extension to this code, following Cyclone Tracy devastating Darwin in 1974 criteria were developed for the design of structures including roofs. The resultant set of guidelines is called Technical Record 440 (TR440) and is now deemed to be the standard for design of products for most cyclonic areas.
Bristile Roofing TECHNICAL MANUAL
4.1
WIND CATEGORIES WIND CATEGORIES The pressure created by winds must be considered when specifying roof structures and roofing materials. Determining the wind force affecting a site at height is essential to pinpoint the desired level of security installation, as the negative pressure exerted to the leeward side of a pitched roof at 35m/s can be more than the weight of the tiles.
High Pressure Zone Medium Pressure Zone
The following factors affect the magnitude of these wind forces: basic wind speed, direction, terrain and building height.
BASIC WIND SPEED CATEGORIES AS/NZS 1170.2 and AS 4055 provides information on wind speeds commonly affecting different areas throughout Australia. o
142
BASIC WIND SPEEDS IN DIFFERENT REGIONS REGIONS
A B C D
Vs (m/s) 38 38 45 50
Vp (m/s) 41 49 57 69
Vu (m/s) 50 60 70 85
REGION B Australian Territory Only
11
REGION C WEIPA DARWIN KATHERINE
For detailed regional wind speed information refer
COOKTOWN
to table 3.1 on page 13 of AS/NZS 1170.2 Structural design action - Wind actions
REGION B BROOME
20
TOWNSVILLE
MACKAY MARBLE BAR
REGION D
ALICE SPRINGS
ROCKHAMPTON
REGION B
REGION C
BUNDABERG
250
REGION A4 CARNARVON
MARYBOROUGH
GASCOYNE JUNCTION
TOOWOOMBA
250 MORAWA
270 30
REGION B
300 COFFS HARBOUR
REGION A1
GREEN HEAD
SYDNEY PERTH
ADELAIDE
REGION A5
Regions are marked with the letters A (A1 to A5) B, C and D. Coastal Region boundaries are smooth lines set in from a smoothed coastline by 50, 100, 150 and 200km. Islands within 50km of the coast are the same region as the adjacent coast. 200KM
50KM
REGION A3 HOBART
Bristile Roofing TECHNICAL MANUAL
REGION A2
CANBERRA
MELBOURNE
(WITHIN 70KM OF MELBOURNE GPO)
4.2
BRISBANE GRAFTON
GLEN INNES
GERALDTON 0
200
BOWEN
CHARTERS TOWERS
PORT HEDLAND
REGION C
CAIRNS MAREEBA
BURKETOWN
DERBY
REGION C 0
o
TERRAIN CATEGORIES The effect of local buildings, hills and vegetation is taken into account by the code as local structures and terrain features that will dissipate the force of the wind. The wind load categories in Australia are defined by AS/NZS 1170.2 as follows: The four defined terrain categories are assessed by the direction and speed of the wind flowing towards a structure. Those quoted are in accordance with AS 1170.2.
TERRAIN CATEGORY 1,ZO=0.002M Exposed open terrain with few or no obstructions, in which the average height of objects surrounding the structure is less than 1.5 metres. This category includes water surfaces (open sea coast and lakes), flat and treeless plains and open snow fields.
Basic Wind Loading Categories
Roughness Length (2째)m
0.002
Natural snow surface
0.006
Desert (stones)
0.008
Cut Grass (10 mm)
0.02
Rough open water surfaces at windspeeds (Vu) and (Vp), Isolated trees uncut grass and airfields
0.04
Crops
0.06
Few trees, Long grass (600.mm)
TERRAIN CATEGORY 2,ZO=0.02M Open terrain grassland with few wellscattered obstructions having heights generally from 1.5 to 10.0 metres. This category includes open park-land, and sparsely built up out skirts of towns and suburbs.
0.2
Level wooded country Suburban buildings
0.4
Centres of small towns
0.8
High density metropolitan
1.0
Forests
2.0
City buildings (10.0m to 30m)
TERRAIN CATEGORY 3,ZO=0.2M Terrain with numerous closely spaced obstructions having the size of domestic houses. This includes most suburban areas.
TERRAIN CATEGORY 4,ZO=2.0M Terrain with numerous large high (10.0 to 30.0 metres) and close obstructions, such as a large city centres and well developed industrial complexes.
Bristile Roofing TECHNICAL MANUAL
4.3
WIND CATEGORIES Determining the wind speed affecting a building site and house design, (the regions Wind Class together with the Wind speeds affecting a site) is the responsibility of the specifiers. For noncyclonic areas, Wind Class is generally between N1-N4 and should be specified on the roofing structure plan. Where as cyclone affected regions will have a Wind Class from C1-C4. Bristile Roofing is able to evaluate the desired level of security installation required for the roof in accordance with AS 2050 Installation Roof Tiles based on the Wind Class specification supplied. Table 1 (below) summarises the relationship between the Wind Speeds and the Wind Class. The method includes combinations of regions, terrain categories, topographic effects and shielding of housing shown in Table 2. Wind Classification system N1, N2, N3, N4, N5, N6 for non-cyclonic Regions A and B, and C1, C2, C3 and C4 for cyclonic Regions C and D shall be considered.
TABLE 1: DESIGN WIND SPEED — EQUIVALENT VALUES HOUSING PROVISIONS DESCRIPTION
EQUIVALENT VALUES WIND CLASS — AS 4055
DESIGN GUST WIND SPEED (M/SEC)
—
KM/H
FOR NON-CYCLONIC REGIONS A AND B
FOR CYCLONIC REGIONS C AND D
PERMISSIBLE STRESS METHOD ONLY
W28
101
N1
N/A
28
W33
119
N2
N/A
33
W41
148
N3
C1
41
W50
180
N4
C2
50
W60
216
N5
C3
60
W70
252
N6
C4
70
TABLE 2: WIND CLASSIFICATION SYSTEM (REFER AS 4055) WIND CLASSIFICATION REGION
A
B
C
D
4.4
TERRAIN CATEGORY TOPOGRAPHIC CLASSIFICATION FS
T1 PS
NS
FS
T2 PS
NS
FS
T3 PS
NS
FS
T4 PS
NS
FS
T5 PS
NS
TC 3
N1
N1
N2
N1
N2
N2
N2
N3
N3
N3
N3
N3
N3
N4
N4
TC 2.5
N1
N2
N2
N2
N3
N3
N2
N3
N3
N3
N4
N4
N3
N4
N4
TC 2
N2
N2
N3
N3
N3
N3
N3
N3
N4
N3
N4
N4
N4
N5
N5
TC 1
N3
N3
N3
N3
N4
N4
N4
N4
N4
N4
N5
N5
N5
N5
N6
TC 3
N2
N2
N3
N2
N3
N3
N3
N3
N4
N3
N4
N4
N4
N4
N5
TC 2.5
N2
N3
N3
N3
N3
N4
N3
N4
N4
N4
N4
N5
N4
N5
N5
TC 2
N3
N3
N3
N3
N4
N4
N4
N4
N5
N4
N5
N5
N5
N5
N6
TC 1
N3
N4
N4
N4
N5
N5
N4
N5
N5
N5
N6
N6
N6
N6
N/A
TC 3
C1
C1
C2
C2
C2
C2
C2
C2
C3
C3
C3
C3
C3
C4
C4
TC 2.5
C1
C2
C2
C2
C2
C3
C2
C3
C3
C3
C4
C4
C3
C4
C4
TC 1, TC 2
C2
C2
C2
C2
C3
C3
C3
C3
C4
C3
C4
C4
C4
N/A
N/A
TC 3
C2
C2
C3
C2
C3
C3
C3
C4
C4
C4
C4
N/A
C4
N/A
N/A
TC 2.5
C2
C3
C3
C3
C3
C4
C3
C4
C4
C4
N/A
N/A
N/A
N/A
N/A
TC 1, TC 2
C3
C3
C3
C3
C4
C4
C4
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FS
full shielding
PS
partial shielding
Wind Classification system N1, N2, N3, N4, N5, N6 for non-cyclonic Regions A and B, and C1, C2, C3 and
NS
no shielding
N
non-cyclonic
C4 for cyclonic Regions C and D shall be considered. The system includes the combinations of regions,
C
cyclonic
N/A not applicable
Bristile Roofing TECHNICAL MANUAL
terrain categories, shielding of housing and topographic effects given in Table 2.
FIXING REQUIREMENTS FOR TILES AND ACCESSORIES TABLE 3: AS 2050 MINIMUM MECHANICAL INSTALLING REQUIREMENTS FOR TILES AND ANCILLARIES WIND CLASSIFICATION
TILE INSTALLING EDGE OF ROOF
ANCILLARY INSTALLING FIELD OF ROOF
RIDGE, HIP AND BARGE TILES
N1 and N2
Mechanically fasten each full tile in second course and then every second tiles in every course or every tile in each alternate course
Mechanically fasten each tile
N3 and C1
Mechanically fasten each full tile in second course
Mechanically fasten each second full tile
Mechanically fasten each tile
N4 and C2/C3
Mechanically fasten every full tile
Mechanically fasten every full tile
Mechanically fasten each tile
TABLE 4: AS 2050 WIND CLASSIFICATION AND MAXIMUM DESIGN GUST WIND SPEED WIND CLASSIFICATION
MAXIMUM DESIGN GUST WIND SPEED (M/S) PERMISSIBLE STRESS METHOD (VP)
SERVICEABILITY LIMIT STATE (VS)
ULTIMATE LIMIT STATE (VU)
N1
28 (W28N)
26
34
N2
33 (W33N)
26
40
N3C1
41 (W41N/C)
32
50
N4C2
50 (W50N/C)
39
61
C3
60 (W60C)
47
74
Note: Wind classifications are as defined in AS 4055
Bristile Roofing TECHNICAL MANUAL
4.5
TABLE 5: AUSTRALIAN FIXING RECOMMENDATIONS WIND CLASS EDGE OF ROOF
SARKING
ANTI FLAP PADS
TILE CLIPS
N1
Optional depending
Optional
Optional
N2
on pitch
ANTI-PONDING BOARD
FIXING BODY AND EDGE OF ROOF
Required for pitches
See Table 3
under 20° subject to
N3
state specifications
N4
Mandatory above N3
C1
as detailed in AS 2050
C2
Section 3.1.1
Mandatory
C3
TABLE 6: BATTEN FIXING SPECIFICATIONS FOR: • 38, 50 x 25 mm Hardwood Battens - 38 x 38 mm Pine Battens • 600mm Truss Centres • Softwood Frame (JD4) and Hardwood Frames (J2) DESIGN WIND VELOCITY
EDGE OF ROOF FIXING
FIELD OF ROOF FIXING
N1 (W28)
1/65 x 3.05 Plain Shank Nail
1/65 x 3.05 Plain Shank Nail
N2 (W33)
1/65 x 3.05 Plain Shank Nail
1/65 x 3.05 Plain Shank Nail
N3 (W41)
1/75 x 3.05 Deformed Shank
1/65 x 3.05 Plain Shank Nail
N4 (W50)
1/75 x 3.05 Deformed Shank Nail
1/75 x 3.05 Plain Shank Nail
C1 (W41)
1/65 x 3.05 Deformed Shank Nail
1/65 x 3.05 Plain Shank Nail
C2 (W50)
1/75 x 3.05 Deformed Shank Nail
1/75 x 3.05 Deformed Shank Nail
C3 (W60)
1/75 #14 Type 17 Screw
1/65 x 3.05 Deformed Shank Nail
Note 1: Confirm fixing specification for timber battens to metal roof frame with roof frame manufacturer. Note 2: Confirm fixing specification for metal battens to timber or metal roof frames with metal batten manufacturer.
4.6
Bristile Roofing TECHNICAL MANUAL
Bristile Roofing tiles are manufactured and tested to cope with a varied range of weather conditions throughout Australia. Factors affecting the design of your roof are as follows:
SELECTING THE ROOF TILE The depressions in the body of a profiled roof tile act as an unaffected watercourse quickly dispersing water from the roof. On flatter profiled tiles, these depressions are either less prominent or not featured. Therefore, water is more able to be blown across the roof by wind, resulting in water following the tile’s under-lapping watercourse. Profile shape should be considered carefully, particularly on roofs that are built in exposed areas where high winds are probable.
THE PITCH OF THE ROOF The pitch of the roof affects the force of gravity and when combined with wind forces dictates the pull of water from the roof. The greater the pitch, the more effectively the water will disperse, therefore the less the pitch the less effective the water dispersal. Tiling is not recommended for a roof pitch below 15 degrees without special safeguards being put in place. AS 2050 states where it is intended to fix tiles to roofs with a pitch of less than 15 degrees, the tile manufacturer’s advice should be adhered to. Sarking is a pliable foil installed prior to fixing the roof battens. Sarking acts as insulation keeping you home cool and free from dust as well as acting as a secondary water catchment. Your Bristile Roofing representative should be consulted when choosing the correct grade of sarking for your roof design. Table 7 (below) demonstrates the minimum roof pitch at which Bristile Roofing tiles are to be installed, showing each region with and without the need for sarking.
TABLE 7 NSW
VIC & TAS
QLD
SA
WA
Cyclonic Area
W/OutSark
With Sark
W/Out Sark
With Sark
W/Out Sark With Sark
W/Out Sark With Sark W/Out Sark With Sark W/Out Sark With Sark
Hacienda
20
15
20
15
20
15
20
15
N/A
N/A
*
17.5
Chateau
20
15
20
15
20
15
20
15
N/A
N/A
*
17.5
Villa
20
15
20
15
20
15
20
15
N/A
N/A
*
17.5
Yeoman (Shake)
25
17.5
20
15
25
17.5
20
15
N/A
N/A
*
17.5
Concrete
Yeoman (Shingle)
25
15
20
15
25
15
20
15
N/A
N/A
*
17.5
Lodge (Striated)
*
20
*
20
*
20
*
20
N/A
N/A
*
20
Lodge (Smooth)
*
20
*
20
*
20
*
20
N/A
N/A
*
20
Marseille
18
15
20
15
20
15
20
15
18
15
*
17.5
Swiss
18
15
20
15
20
15
20
15
18
15
*
17.5
Vienna
18
15
20
15
20
15
20
15
18
15
*
17.5
Roman
18
15
20
15
20
15
20
15
18
15
*
17.5
Terracotta
*Sarking required regardless of pitch. Note: Roofs with pitches of less than 20° with sarking installed require Anti Ponding Boards to be fitted.
Bristile Roofing TECHNICAL MANUAL
4.7
BATTEN SIZES AND RAFTER SPACINGS (MM) RAFTER (TRUSS) SPACINGS Stress on the rafters and specified battens increase the wider the spacing. Timber battens should be sound, and of sufficient length and size to meet regional fixing requirements. Regions have varying batten sizes and types, however must be fixed in accordance with the AS 1684.2, AS 1684.3 or AS 1720.1.
TABLE 8: BATTEN SIZES AND RAFTER SPACINGS (MM) BATTEN MATERIAL SPECIFICATION RAFTER SPACING
451–600
601–900*
Queensland
Hardwood 40 x 25
Hardwood 50 x 38
Softwood 50 x 38
Softwood 50 x 38
New South Wales
Hardwood 50 x 25
Hardwood 50 x 38
Softwood 38 x 38
Softwood 63 x 38
Hardwood 40 x 25 Victoria
Hardwood 50 x 25
Softwood 63 x 38
Softwood 38 x 38 South Australia
Hardwood 50 x 25
Softwood 63 x 38
Softwood 38 x 38 Western Australia
Hardwood 38 x 25
Hardwood 38 x 38
Tasmania
Hardwood 50 x 25
Hardwood 50 x 38
Note: Bolded product denotes most popular batten preference *Contact your local Bristile Roofing office for information relating to the installation of roof tiles on roofs with this truss spacing.
4.8
Bristile Roofing TECHNICAL MANUAL
RAFTER LENGTHS AND PITCHES The minimum pitch recommended for a roof can be influenced by the water run off depth. Extremely long runs accumulate water to a considerable depth at the bottom of the run, particularly at low pitches, and in heavy rainfall conditions. It is for this reason that Bristile Roofing recommends that any roof with rafter lengths in excess of 4.5 metres should be built at a pitch greater than the minimum stated in Table 9 on page 4.7 of this manual. The specified pitch should increase by 2° for every additional metre of rafter length.
Informative Notes in AS 2050 “Installation of Roof Tiles”, state: “Long rafter lengths may require sarking to prevent inundation of the roof. These lengths may vary according to the tile profile used, the pitch of the roof and the exposure. The manufacturer’s specification should be consulted.” Table 9 indicates the maximum rafter lengths after which sarking must be installed to the area of roof that exceeds the noted maximum length.
TABLE 9: SARKING REQUIREMENTS IN RELATION TO PITCH/RAFTER LENGTH ROOF - DEGREES OF PITCH
MAXIMUM RAFTER LENGTH WITHOUT SARKING (MM)
≥18 < 20
4,500
≥20 < 22
5,500
≥22
6,000
Bristile Roofing TECHNICAL MANUAL
4.9
PRODUCT 1 WARRANTY - CONCRETE ROOF TILES Bristile Roofing warranties for 50 years from the date of installation or supply, that the concrete roof tiles supplied to a given project will remain structurally sound and in addition: » Will not crack, split or warp due to defective manufacturing » Will not become porous and leak » Will not be adversely affected by frost or salt air » Will comply with the water absorption, permeability, and the transverse strength tests specified in Australian Standard AS 2049
2 BRISTILE ROOFING’S OBLIGATIONS a) If your concrete roof tiles fail to meet any of the standards set out in Section 1, Bristile Roofing will, at its discretion and on a pro-rata basis: (i) Repair or replace the defective tiles; or (ii) Supply equivalent tiles; or (iii) Pay for their repair, replacement or substitution.
3 EXCLUSIONS a) This warranty covers only tile products that are manufactured by Bristile Roofing. All other products or materials used to install the roof may be covered by other manufacturer’s warranties. Examples of such products include: (i) Sarking (iv) Anti-ponding board (ii) Clips & nails (v) Fire wall batts (iii) Flexible pointing (vi) Battens b) Due to raw materials and the manufacturing method used to produce concrete tiles some colour variations may occur from batch to batch. All efforts are made to ensure that produced colours match sample tiles and product displays as closely as possible. c) Efflorescence is a natural residue that can appear on various masonry products including concrete roof tiles. Tiles produced by Bristile Roofing have special surface treatments which reduce the likelihood of efflorescence occurring. If efflorescence does occur, it will usually weather off and disappear after additional exposure to the elements. Efflorescence does not affect the performance of the tile in any way. d) Bristile Roofing cannot warranty the surface appearance of your concrete roof tiles. As concrete roof tiles age, they take on a matt appearance caused by weathering and air pollution. e) This warranty does not apply to damage caused to the tiles by: (i) Incorrect installation (ii) People (other than qualified roof installers) walking or working on the roof (iii) Animals or insects (iv) Falling objects (v) Air pollution (vi) Being treated by unsuitable chemicals, cleaners or coatings (vii) Any factor beyond the control of Bristile Roofing (including an act of God, natural disaster, war or riot). f) Bristile Roofing will have no liability to you for any loss (including loss of profits and consequential loss), damage to persons or property or death or injury caused by any act or omission of Bristile Roofing or its agents. g) This warranty excludes all other warranties and liabilities for damage or loss in connection with defects in your Bristile Roofing apart from those imposed by law (including Australian Trade Practices Act). This warranty is issued by Bristile Roofing (East Coast) Pty. Ltd. ABN 77 090 775 634. h) This warranty only covers roofs installed after February 2001
Bristile Roofing TECHNICAL MANUAL
5.1
COLOUR FOR LIFE 1. WARRANTY – TERRACOTTA ROOF TILES Bristile Roofing terracotta roof tiles (Tiles) are fired at extremely high temperatures ensuring a no fade product. As such, Bristile warrants that there will be no significant change to the colour of the product over the life of the Tile. However, the Tiles are a natural product, and accordingly, there will be natural colour variation between Tiles, and this is not covered by this warranty. To minimise the aesthetic effect of these variations, the Tiles are sold in packs of colour blends. Bristile warrants that it has manufactured its Tiles in accordance with the Australian Standard AS 2049, and that its Tiles are tested to the Australian Standard AS 4046. Test results are recorded for product produced and include tests for: » Permitted Distortion » Batten Lugs & Squareness » Transverse Breaking Load » Water Absorption » Permeability » Freeze/Thaw » Resistance to salt attack » Determination of dynamic weather resistance The above warranties apply to Tiles manufactured on or after 1 July 1999.
2. BRISTILE OBLIGATIONS a) If your Tiles significantly change in colour over time, or are not manufactured in conformity with the above standards, Bristile will, without limiting any other statutory rights you may have, and subject to the provisions stated in paragraphs 3 and 4 below, at its own expense, take such steps as it determines to be reasonably required in the circumstances, including, where necessary: (i) (ii) (iii) (iv)
the replacement of the Tiles or the supply of equivalent Tiles; the repair of the Tiles; the payment of the cost of replacing the Tiles or of acquiring equivalent Tiles; or the payment of the cost of having the Tiles repaired provided you have: (a) produced written proof of date of purchase and installation of the Tiles; and (b) afforded Bristile a reasonable opportunity to inspect and, where necessary, test the Tiles.
b) Small surface imperfections and glaze chipping are inherent to all Tiles. These imperfections in no way affect the performance of the Tile. However, if any significant chipping of glazed Tiles occurs during a roof installation performed by Bristile, it will be repaired by Bristile, at its own cost, using an after firing glazing operation, after installation.
5.2
Bristile Roofing TECHNICAL MANUAL
3. LIMITATION OF LIABILITY IN CERTAIN SITUATIONS (a) Subject to paragraph 3 (b) below, liability for breach of a condition or warranty implied into your contract with Bristile is limited to any one of the following as determined by Bristile: (i) the replacement of the Tiles or the supply of equivalent Tiles; (ii) the repair of the Tiles; (iii) the payment of the cost of replacing the Tiles or of acquiring equivalent Tiles; or (iv) the payment of the cost of having the Tiles repaired. b) This limitation only applies if: (i) your Tiles are ordinarily acquired for personal or household use; or (ii) if the claim is fair and reasonable in the opinion of Bristile Roofing
4. EXCLUSIONS a) This product warranty only applies to Tiles that are manufactured by Bristile Roofing: no other products or materials used to install your roof are covered by the warranty. b) This product warranty does not apply to damage caused to the Tiles by: (i) The transportation of the Tiles by anyone other than Bristile People (other than Bristile roof installers) walking or working on the roof (ii) Animals, insects, mould, mildew, lichens or other plant growths. (iii) Falling objects (iv) Air pollution or environmental change (v) Their treatment by chemicals, cleaners or coatings which have not first been checked for suitability with Bristile (vi) Any other factor beyond the control of Bristile (including an act of God, natural disaster, war or riot) c) This product warranty does not apply to any Tiles which are removed from their first place of installation and re-installed d) This warranty excludes all other warranties and liability for damage or loss in connection with defects in your Bristile roof apart from those imposed by law (including Australian Trade Practices Act). This warranty is issued by Bristile Pty Ltd 34 079 711 603.
Bristile Roofing TECHNICAL MANUAL
5.3
INSTALLATION 1. WARRANTY - CONCRETE AND TERRACOTTA ROOF TILES Bristile Roofing warrants that at the time of roof installation, the roof was installed in accordance with the most current version of Australian Standard AS 2050 unless notified in writing by Bristile Roofing. Bristile Roofing agrees to make good any faulty workmanship if it can be proven that the work carried out was not in accordance with Australian Standard AS 2050, unless there was notification in writing by Bristile Roofing stating that for whatever reason AS 2050 did not apply at the time of installation. Written notification of non-compliance must be submitted to Bristile Roofing within 10 years of the date of installation.
2. BRISTILE ROOFINGâ&#x20AC;&#x2122;S OBLIGATIONS Bristile Roofing agrees to make good any faulty workmanship if it can be proven that the work carried out was not in accordance with Australian Standard AS 2050, unless there was notification in writing by Bristile Roofing stating that for whatever reason AS 2050 did not apply at the time of installation. Written notification of non-compliance must be submitted to Bristile Roofing within 10 years of the date of installation.
3. EXCLUSIONS a) This warranty does not cover pointing. Any claim to rectify flexible pointing needs to be made to the pointing manufacturer. b) This warranty does not apply to workmanship adversely affected by any factor beyond the control of Bristile Roofing (including an act of God, natural disaster, war or riot). c) As far as permitted by statute, Bristile Roofing limits its liability to one of the following: (i) Supplying the services again; or (ii) Paying for the services to be supplied again. d) Bristile Roofing will have no liability to you for any loss (including loss of profits and consequential loss), damage to persons or property or death or injury caused by any act or omission of Bristile Roofing or its agents. e) This warranty excludes all other warranties and liability for damage or loss in connection with defects in your Bristile roof apart from those imposed by law (including Australian Trade Practices Act). This warranty is issued by Bristile Roofing (East Coast) Pty. Ltd. ABN 77 090 775 634 and Bristile Pty. Ltd. ABN 34 079 711 603 f) This warranty only covers roofs installed after February 2001.
5.4
Bristile Roofing TECHNICAL MANUAL
ROOF PREPARATION REQUIREMENTS The designer should ensure that the roof structure complies with all relevant local and state statutory requirements and standards where applicable.
profile and any damage. If there is any damage to the tiles or quantities delivered are not correct, Bristile Roofing needs to be notified immediately.
On delivery the principal contractor or owner should inspect the product for transportation damage. If there is any visible damage, a claim should be filed promptly with Bristile Roofing or the relevant carrier. Examine each pallet for colour, profile and any damage. Check accessory items for proper colour,
Suitable areas of the building site should be made available and access should preferably be provided to all sides of the roof to allow efficient delivery and consequent loading of the roof. Prior to installation of the roofing tiles, the principal contractor (builder) must ensure
that other tradesmen involved in the construction have completed their work, i.e. bricklayers, carpenters, plumbers, electricians, and ceiling fixers for exposed beam areas. The Australian Standard AS 2050 Fixing of Roof Tiles (Appendix A), covers the need to define the responsibilities (commonly called “Work by other Trades’’ and “Information supplied by designer or builder”) of the main contractor or designer. The following list describes these areas of responsibility.
KEY RESPONSIBILITIES:
ROOF PREPARATION REQUIREMENTS
Unless otherwise specified in the roof contract the following must be completed before roof tiles can be loaded onto the roof frame:
The following table is a simple checklist that can be used by all trades on a job to ensure that all required trade work is completed prior to the arrival of the roof tiler. The reference number displayed allows quick access to information relating to the nominated area of work.
1. Roof structure and rafters are to be secured, square and correctly braced 2. Fascia boards installed at the correct height with counter (tilt) batten (where applicable)
ITEM
PREPARATION
REFERENCE
General
All load bearing walls and partitions framed and braced. Roof structure to be sound, square, straight and true. Adequate supports and bracing installed. Tiles should never be laid on a roof with only temporary supports and bracing.
N/A
Eaves
Fascia or tilt batten fixed, gutter fixed
See page 6.5 of this manual
Gables
Barge board fixed Verge Strip fixed (Bed & Point) Flashing installed (Dry Gables) Brickwork complete
See pages 6.5, 7.14 and 7.15 of this manual
Valleys
Valley boards and valley irons fitted correctly
See page 6.4 of this manual
Change of More Than 6°
Flashings fixed correctly depending on the degree of pitch change
See page 6.12 of this manual
Dutch Gables
Barge board, gable sheeting and flashing installed
See page 6.6 of this manual
Ridge Abutments
Flashing installed
See page 6.9 of this manual
Abutments
Soaker trays fitted, formed flashing installed, apron flashing installed, flashing to brickwork completed
See pages 6.7 and 6.8 of this manual
Exposed Beams
Sheeting boards installed and counter battens correctly fitted
See page 6.3 of this manual
Box Gutters
Over flashing installed, box gutter fitted
See page 6.11 of this manual
Party Wall Insulation
Party wall finished to correct height
See page 7.13 of this manual
Chimney and Vent Pipe
Soaker formed and flashed
See page 6.9 and 6.10 of this manual
3. Valley boards and valley irons installed in place 4. Barge boards installed with counter (tilt) battens fitted (where applicable) 5. With exposed rafters, all above rafter boarding and ceiling materials are to be installed 6. Gutters, spouting, down pipes and dry soakers (where applicable) installed 7. Anti-ponding facilities installed (Vic and WA) 8. Chimneys, abutments, vent pipes and roof ventilation installed 9. Installation of full scaffold, guardrail or safety mesh in accordance with Occupational Health and Safety guidelines. Any uncertainty about the builder’s safety provisions should be referred to Bristile Roofing. Specifications of the construction of the roof frame and installation of related materials prior to installation is covered in this section.
Bristile Roofing TECHNICAL MANUAL
6.1
WORKING AT HEIGHTS State legislation is to be referred for advice about how to manage risk of falls while carrying out: » Housing construction; and » Any other type of construction work Fall protection recommendations vary by state. Refer to relevant state’s legislation to determine the most suitable hierarchy of control measures. Detailed control measures to prevent the risk of injury should be outlined in a workplace health and safety risk assessment plan.
ROOF FRAME Load bearing internal partitions and wall frames are to be correctly framed and braced. Roofing structures are to be square and straight and true to dimension specifications. The underside of the rafter or truss top chord should be diagonally braced. To assure normal rafter spacing along the eave creeper, rafters must be installed at hip corners. Top edges of hip and ridge boards should be level on their top edge. Slight deviations in a roof plane will be noticeable on a finished roof, and the tiler cannot correct this. Roofing contractors are not qualified to inspect truss or frame components. The builder is responsible for providing a fit for purpose frame and roof.
METAL ROOF FRAMES Metal roof frames must be installed using non-ferrous, stainless steel or steel nails/screws with suitable corrosion resistant coating. Corrosive regions may promote unfavourable galvanic relationships in metallic substrate. The frame or truss manufacturer must supply the required fixing details for battens before the roof can be installed.
6.2
Bristile Roofing TECHNICAL MANUAL
EXPOSED RAFTER If the roofing design includes exposed rafters or raked ceilings, ceiling linings, counter battens and sarking are to be installed on top of the rafters. Counter battens must be fastened over the rafter centre lines to guarantee the sarking sag complies with AS/NZS 4200.2 giving clearance between the sarking, insulation material and ceiling linings.
Figure 1 Cathedral Ceiling with Counter Battens side section ax
Sarking
min
40m
20 Tile batten
Sarking
Exposed Rafter
Ceiling lining
Sarking membrane allowed to dish a minimum of 20mm and a maximum of 40mm
Figure 2 Cathedral Ceiling with Counter Battens end section
Tile batten
Counter batten Ceiling lining
Exposed rafter
Bristile Roofing TECHNICAL MANUAL
6.3
VALLEYS To ensure that this simple but critical area of the roof performs correctly, cooperation from several trade areas is essential. Firstly the carpenter must install the valley boards. These can be straight, or if available tapered hardwood boards with a minimum thickness of 19mm for roofs using 25mm battens and 30mm thick for roofs where 38mm battens are used. Boards are fixed to the trusses or rafters with the thick edge facing into the centre of the valley. Now the fascia and gutter fixer fits the valley iron. He lays the iron onto the valley boards and then secures it with bent over nails. He â&#x20AC;&#x153;bird mouthsâ&#x20AC;? the end of the valley where it empties into the gutter and makes sure that it has sufficient projection into the gutter. If it is an up and over valley he will need to cut the two sides of the valley and rivet them together sealing the join with silicone. (See illustration)
Figure 3 Valley iron installation Valleys rivetted and sealed at junction
Figure 4 Valley board installation Tile Batten
Sarking
Sarking installed under valley batten, not to protrude into valley
Valley iron
Valley batten Tapered or straight valley board (thick edge faces in)
6.4
Bristile Roofing TECHNICAL MANUAL
Valley rafter
FASCIA SET UP It is vital to ensure the fascia board height is correct to avoid the last course of tiles on a roof dipping. If a fascia batten is not utilised or the fascia height is incorrect the last course of tiles will not be on the same plane as the remainder of the roof. The fascia board should be secured to the rafters by the top edge, 25mm higher than the tile batten thickness. Therefore, a 25mm thick batten requires a 50mm distance between the top of the rafter and the top of the fascia board. This distance is known as the fascia, tilt or bellcast height. Reduce the measurement of the fascia distance by 10mm if the roof pitch is less than 20 degrees. Alternatively, as the pitch increases toward 45 degrees, the fascia distance must increase too. If a fascia board is not used, or fascia height is not sufficient, a batten referred to as a “fascia”, “bellcast” or “tilt” batten must be installed. Fascia batten height should be calculated using the same method, and installed on the top edge of the lower rafter.
Figure 5 Fascia bellcast detail Metal or fibre cement anti-ponding board prevents sarking from ponding behind fascia Tile overhang
50
Tile batten Truss or rafter
Metal fascia & gutter
Soffit lining
Figure 6 Tilt batten bellcast detail
"OTTOM COURSE OF TILES IS SUPPORTED ON 4ILT "ATTEN AND MAINTAINS THE SAME PLANE AS COURSE ABOVE
4ILE BATTEN
4RUSS OR RAFTER
4ILT "ATTEN BY BUILDER
Bristile Roofing TECHNICAL MANUAL
6.5
FLASHINGS Roof flashings to tile roofs are generally installed by a qualified roof plumber. However in some situations it is easier for the roof tilers to install flashings on some roof features. Contact your local Bristile Roofing office to confirm what roof flashings may be able to be installed by the roof tiler in your area. The following details cover some of the more common design scenarios that may occur on roofs, they have been developed
over time and work well if installed correctly. On some occasions correct installation of flashings will require coordination between the roof tiler and plumber. Flashings can be formed out of materials such as Zincalume速 steel, soft zinc and copper. The flashing material should be sufficiently pliable to allow dressing down over tile profiles. Side flashings should be dressed to fit closely into and against the tile profile, and be a close fit to the vertical wall. Flashing against vertical framework must
be sufficiently supported. When wall sheeting finishes above a tiled roof a clearance gap is required. The distance of this gap must be sufficient to cater for any batten thickness. The minimum clearance from the top of the rafter or truss and the bottom edge installed flashing needs to be 100mm. The included table details the clearance required depending on the size of battens being used.
DUTCH GABLE FLASHING Figure 7 Dutch gable installation detail Flashing to extend 300mm past end of dutch gable Barge Flashing turned up behind gable cladding If dry verge used it needs to spill out onto flashing at this point
Flashing turned up 10mm under hip to allow direction of moisture to weep holes
Flexible pointing
Figure 8 Dutch gable installation detail (section) Tapered barge tile Metal barge
Tile batten Rafter
Gable cladding 75 Flashing
Flashing to have a 75mm up-stand behind cladding
CLEARANCE REQUIREMENTS Rafter Tile batten
6.6
Bristile Roofing TECHNICAL MANUAL
CLEARANCE
BATTEN THICKNESS
125mm 138mm 150mm
25mm 38mm 50mm
ABUTMENT FLASHING
Figure 9 Abutment flashing to timber frame
Flashing by plumber Wall Cladding
Support for flashing
75
Tile batten 300
Rafter Flashing to extend a minimum of 300mm onto roof. To be dressed down by plumber
Figure 10 Flashing at side abutment
Weatherboards to stud wall Noggin to support flashing Counter flashing turned up to full length of roof
Sarking
Pioneer Roof Tiles
Tile batten
Rafter
Figure 11 Abutment flashing to brick wall
Flashing fitted to brickwork by plumber
Tiles to be set back 10-20mm from face of brickwork
Flashing to have lap 75mm minimum Undersoaker metal flashing by plumber
Tile batten
Rafter
Bristile Roofing TECHNICAL MANUAL
6.7
Figure 12 Abutment flashing to brick wall section
12 min
Tile setback
Overflashing by other trades
Tile batten
Rafter
Figure 13 Concealed abutment flashing to brick wall section
Stepped soft zinc flashing by plumber
Timber support for concealed gutter Zincalume concealed gutter by plumber
Tile batten
150
Figure 14 Vertical abutment flashing to brick wall
Apron flashing dressed onto tile profile by plumber
Tile batten
Rafter
6.8
Bristile Roofing TECHNICAL MANUAL
152 min.
25
Apron flashing fitted to brickwork by plumber
Figure 15 Abutment of ridge to gable flashing (plan view)
460 x 460 flashing at ridge gable join
Flashing to be turned up 10mm to stop splashing from dry verges
Dry verge empties onto flashing
A
A
Weephole
Weephole
Abutment flashing
Ridge tile
Flashing to be turned up 10mm at this point
Figure 16 Abutment of ridge to gable flashing (front elevation)
Ridge Tile Bedding and flexible pointing Weep hole 460 x 460 flashing at ridge gable join
Step flashing by plumber
Rafter
Ridge board
Figure 17 Vent pipe flashing detail
Rubber boot covers flashing up-stand by at least 25mm Circular clip secures collar to vent pipe
Flashing is formed into an up-stand around pipe
Flashing covers entire tile and underlaps adjacent tiles on all sides and is dressed down onto tile below
Bristile Roofing TECHNICAL MANUAL
6.9
CHIMNEY FLASHING To divert water around the projections and from under flashing, edges around roof penetrations such as chimneys, shafts, vents, skylights and abutments, the flashings should be trimmed and turned up. Also consider the issue of ponding.
Figure 18 Zincalume® chimney soaker flashing
Rafter
127
203
203 ®
Zincalume chimney soaker tray
Battens cut off flush with chimney opening
Figure 19 Complete chimney flashing detail
Soft zinc step flashing fitted to chimney brickwork by others. It then overflashes the up-stand of the chimney tray.
Soft zinc step flashing fitted by others to brickwork in the front of chimney and positioned under chimney soaker tray and dressed down onto tiles.
Tiles to overlap chimney tray by at least 100mm. Dry seal material to be used to seal this area. Zincalume® chimney tray installed by others on the roof frame prior to the chimney’s construction.
GENERAL All edges and junctions of finished works should be clean and properly sealed against water penetration.
6.10
Bristile Roofing TECHNICAL MANUAL
BOX GUTTER FLASHINGS Box gutters are water collection devices that are installed where two opposing roof lines meet at the base of their rafters, or where one roof meets an abutment. Box gutters are a custom design roof feature, so each one will be different from project to project. Installers should therefore obtain detailed plans from the builder to ensure that they complete the roof as per the designers specification. For box gutters that are formed at structural abutments, figure 20 gives a typical detail of the general specifications usually required for this type of gutter. However just like the traditional box gutter mentioned previously, these details can change and it is the installerâ&#x20AC;&#x2122;s responsibility to ensure that he fits the tiles in accordance with the specifications and requirements set out in the plan.
Figure 20 Box gutter adjoining brick wall
300 min. 150 lap
Box gutter 150 Flashing up-stand
Tilt batten by builder 25 turn up Supporting boards
75 x 75 wall plate
SPECIAL BARGE FLASHING Where a clean line gable finish is required a concealed gutter can be used. The fascia is set up to cover the sides of the tiles and then a one piece gutter flashing is fitted over the fascia and supported on the tile battens. Tiles are then fitted to overlap the concealed gutter with a setback from the fascia of 20mm. Note: All gable cuts to be mechanically fixed.
Figure 21 Concealed gutter
Barge to project above tile batten
75
One-piece concealed gutter flashing (by fascia & gutter fixer) End rafter
Tile batten
Barge board
Figure 22 Ship end (splayed gable) Cut tiles to a neat straight line with a maximum 20mm gap between tile and back of gutter
Zincalume capping (by builder)
Zincalume box gutter (by builder)
End rafter
Bristile Roofing TECHNICAL MANUAL
6.11
MANSARD ROOF Where the two roof lines of a Mansard roof intersect, sarking will be carried across over anti-ponding board which supports it where the roof line changes pitch. Figure 23 shows the specialised metal flashing that is installed by the roof plumber. The nature of the flashing means that the tiler and roof plumber need to work together to ensure that this critical area of the roof is waterproofed correctly.
Figure 23 Mansard detail
Anti-ponding board for flashing and sarking Tile batten by builder
Flashing by roof plumber Tile batten
Sarking with 150mm lap to upper and lower sections
CHANGE OF PITCH FLASHINGS Where two roof planes of different pitch meet, a specialised flashing will need to be installed by the plumber to ensure that this area of the roof does not leak. If the pitch variation between the two roofs is ≥6° ≤30° then flashing should be fitted as described in Figure 24. If the pitch variation is >30° then Figure 25 is to be followed.
Figure 24 Change of pitch sarking details 45o and less Internal pitch change angle between 6o and 30o
152 - 178 Sarking to come up and past the first batten 45o or less
15o
Rafter
Figure 25 Change of pitch sarking detail more than 45o
Rafter Flashing dressed onto tiles by plumber
Sarking to come up and past the first batten
More than 45o
15o Internal pitch change angle greater than 30o
6.12
Bristile Roofing TECHNICAL MANUAL
Tilt batten 25mm thicker than tiling battens
BARGE Gable ends can have a number of different finishes. These different types of finishes require different barge board and flashing designs. Listed below are several of the more common
Figure 26 Barge set up for barge tile finish
barge details. If the barge is set up correctly for the type of gable finish being used, the tiler will be able to complete his work without delay and the gable will function correctly.
Metal barge set up so it will finish flush with the top of the roof battens
Set up flush
Tile batten Nogging End rafter
Barge set up so it will finish 5mm below the finished batten height
Figure 27 Barge set up for bed and point finish
Set up 5mm
Tile batten Nogging End rafter
Bristile Roofing TECHNICAL MANUAL
6.13
ANTI-PONDING BOARDS To prevent sarking from sagging and ensure that collected water will run-off to the guttering anti-ponding boards should be installed at the eaves line. In accordance with AS 4200.2, low
pitched roofs are recommend to have antiponding boards installed subject to regional specifications. If there is no eaves overhang the use anti-ponding boards is strongly advised.
Figure 28 Anti-ponding board installation detail Metal or fibre cement anti-ponding board prevents sarking from ponding behind fascia Tile overhang
50
Tile batten Truss or rafter
Metal fascia & gutter
6.14
Bristile Roofing TECHNICAL MANUAL
Soffit lining
LAYING TILES Bristile Roofing advises tiles be laid and secured in accordance with AS 2050 “Installation of Roof Tiles.” Details of Bristile Roofing’s security installation specifications are detailed in this section. Regional experience, research and application have helped to develop these specifications, taking into account the following Building Codes and Standards: a) AS 2050 “Installation of roof tiles” b) AS/NZS 4200.2 “Installation of materials suitable for use as Pliable Building Membranes and underlays - Installation requirements” Variations in regional ideals mean, your roof tiling contractors will: 1. Install an appropriate fall protection system to meet Occupational Health and Safety guidelines (subject to regional practice) 2. Fix anti-ponding boards (subject to regional practice) 3. Install sarking or underlay (as required) 4. Install tile battens 5. Install tiles and related material using a recommended security method 6. Bed and point ridge and hip joins 7. Install fire-resistant batts over party walls (as required) 8. Clean the roof of footmarks and loose debris
BATTENS Batten installation to rafters must comply with the loading requirements specified in Clause 1.4.1 of AS 2050.
SECURITY FIXING TO RAFTER » Non-ferrous stainless steel or steel fixings with an appropriate corrosion-resistant coating should be used for fixing of tiles to battens and battens to metal framing » Clout nails must comply with AS 2334 (minimum diameter of 2.8mm, and minimum penetration of 15mm into the rafter) » Any self-drilling screws used to fix battens must comply with AS 3566.1 self drilling screws for the building and construction industries - general requirements. » Frame and truss manufacturer must provide fixing specifications.
JOINTS IN BATTENS Three consecutive battens should not be jointed to the same rafter, joints should be staggered over the roof. Batten joints are required to meet in the centre of trusses and rafters.
HIP AND VALLEY JOINTS Battens are required to be mitre cut at intersections with hip board and valley battens, securing joints with skew nail to ensure sound support.
METAL BATTENS Metal battens are to be manufactured to the standard noted in clause 2.2.2 found in AS 2059 and fitted in accordance clause 3.2.1 of the same standard. As battens may be installed by trades other than roof tilers special attention should be given to batten spacings.
Bristile Roofing TECHNICAL MANUAL
7.1
TIMBER BATTEN FIXING
Figure 29 Timber batten fixing detail
Timber batten fixing notes: » Fixing of tile battens is to be in accordance with the relevant tables found on page 4.6 » If the battens are joined in a run, they should be butt jointed at the centre of a rafter or truss.
Battens mitre cut over hips and then skew nailed Batten joins to be staggered so that each grouping of three battens does not contain more than one join
» Battens must be mitre cut to hip and valley boards, and attached by skew nailing. » Battens must not be connected to, or supported by brickwork, as this will accentuate the normal settlement problem of timber framed roofs. The laying and fixing of tile battens is performed by the tiler. » Battens should only be stood on where they cross rafters or trusses. Standing in the middle of a batten where it spans between rafters or trusses could cause the batten to break. » Battens shall be aligned to within a tolerance of 20 mm in 4m. » Timber battens fixed to metal trusses must be in accordance to the truss manufacturers specification.
METAL BATTEN FIXING
Battens mitre cut into valley batten and skew nailed
Battens butt jointed or mitre cut over rafter and skew nailed
Metal batten fixing notes: » To minimise cutting, lay all battens in one direction, starting from one end of roof. To obtain correct length of battens, cut with tin snips at each side of the batten, then bend and snap. » Overlap battens and snap fix together, lapping of battens takes place over trusses with a minimum joint lap of 40mm required.
Figure 30 Metal batten fixing detail (a)
Secured by nail or screw through both ends.
» Battens are nailed to trusses at each support. See diagram (a)
» Load and spread tiles, using tile clips to fix in position. » When using Top Span 40 battens the top and bottom flange is to be fixed to the rafter. Fascia to be installed to suit batten height. Battens should only be stood on where they cross rafters or trusses. Standing in the middle of a batten where it spans between rafters or trusses could cause the batten to buckle. » Metal battens fixed to timber or metal trusses must be in accordance to the truss manufacturers specification.
7.2
Bristile Roofing TECHNICAL MANUAL
Batten fixed with galvanised 1/65 x 2.8 Plain Shank Nail for timber frame and 1/65 Senco Gold Nail for steel frame. Note: For any non Bluescope steel frame consult with manufacturer about suitable fixing methods.
Top Span 40 metal battens are to have both flanges fixed to the rafter.
To minimise cutting, lay all battens in one directions, starting from one end of the roof. For hip valley roofs lay battens starting from valley.
» On roofs with valleys, a metal valley batten to support and house the ends of the tile battens and prevent sarking damage are used. Valley support should be approximately 20mm deep, metal or timber. » Nail or screw valley battens into position alongside the valley support (valley boards). Fix tile battens ensuring that the ends engage securely into the valley batten.
(b)
Metal valley batten fixed with nails or screws to rafters. Batten ends to be pushed hard into valley batten. Ends do not need to be mitre cut.
Battens to be joined over trusses with a minimum lap joint of 40mm.
SARKING Sarking is a reflective, water resistant membrane that is installed between the top chord of the roof truss or rafter and the roof battens. It has a number of benefits the most important of which are, the provision of a reflective barrier that minimises heat transmission into the roof space, and as a water resistant membrane that provides a secondary barrier to water entry. A number of circumstances which dictate the use of sarking as a protective measure against damage, irrespective of roof pitch are listed below. » Where local regulatory authorities require the use of sarking
41m/s (ie. Greater than C1 or N3). » Where run off from a high level gutter or valley discharges onto the roof, the roof should be sarked from the point of discharge down to the eaves gutter. Minimum width 1.8 metres on either side of the discharge point. Alternatively lead flashing sufficient to cover the spreader discharge point can be fitted. Note: Ideally the National Plumbing and Drainage standard AS 3500.3.1 should be consulted to determine the best solutions for managing stormwater run off when the roof is being designed.
» Where extreme weather conditions are probable i.e. cliff tops, open exposed sites
» At any change of roof pitch greater than 6° and extending from there to the eaves gutter.
» Bushfire prone areas to prevent flying embers entering the roof space.
» Where radiant heat is a problem and sarking is used to control it.
» Mansard roofs.
» Long rafter lengths
» Where design wind velocities exceeds
LAYING Sarking should be laid with the reflective side face down.
OVER-LAPPING SARKING Sarking should overlap at least 150mm, with the upper layer on top of the lower layer of sarking. The end of a roll of sarking, should have overlapping layers at least one rafter space in length. Sagging should not occur more than 40mm between rafters.
OBSTACLES IN THE ROOF HOT FLUE Sarking should be cut back to create a clear space of 50mm.
PENETRATIONS Water should be diverted from the roof by turning up and sealing sarking at any roof projection. In the case of a fascia batten being used in place of a fascia board (and there is no gutter), the sarking material should be neatly trimmed to the outside edge of the fascia batten.
USE OF SECURITY PADS The use of security pads or anti-flap pads is recommended to avoid constant flexing and to increase the life of the sarking material. Install
security pads in a staggered pattern under each second row of battens between each pair of rafters.
SARKING AT EAVES Sarking should extend over the fascia board by a minimum of 25mm and a maximum of 50mm to allow for optimum water run off.
SARKING SUPPORT Approved anti-ponding board is preferable on roofs with a low pitch, in accordance with regional specifications. (Make reference to page 6.14 of this manual). Adequate reinforcement of the sarking, where rafter centres exceed 600mm. Using heavy grade sarking or supporting the existing sarking becomes mandatory where the rafter centres exceed 900mm. Installation of sarking support or safety mesh is performed by other trades as referred to in AS 2050 Appendix A.
SARKING AT VALLEYS Sarking is secured by fixing a valley batten parallel to the valley gutter. The sarking should either overlap the valley by less than 25mm or be cut at the valley batten. If sarking projects too far into valley the roof is likely to leak.
Bristile Roofing TECHNICAL MANUAL
7.3
VALLEY CONSTRUCTION
Figure 31 Valley construction detail Optional sarking
Creeper rafters
A
A
Valley batten only required when sarking installed
Tile battens
Tiles valley cuts are to be fixed with an approved valley peg as shown
Tile battens must be mitre cut and skew nailed to side of valley batten (or valley board if no valley batten) Zincalume速 valley iron Metal fascia
Figure 32 Valley construction detail (Section A-A)
Tile batten
Sarking installed under valley batten, is not to protrude into valley Valley iron Tapered or straight valley board (thick edge faces in)
7.4
Bristile Roofing TECHNICAL MANUAL
Valley rafter
Valley batten
LAYING OF TILES CONCRETE TILE BATTEN SET OUT All Bristile Roofing tiles are designed to be consistent in dimension, which allows for easy set out. Concrete tiles can be installed with a variable head lap which allows them to be fitted without the need to cut the top course of tiles. Terracotta tiles though, have minimal head lap tolerances and designers should ensure that the rafter lengths work full tile courses wherever possible. The information below gives a basic understanding of the tile set out procedure. Contact your nearest Bristile Roofing office for more detailed coursing information if required. Please note that the batten set out process varies slightly from state to state. Contact your nearest Bristile Roofing office for more detailed battens set out information if required.
CONCRETE TILE BATTEN SET OUT PROCEDURE: Correct spacing of tile battens is essential to obtain a uniform appearance of the finished roof. The following procedure is followed when setting out the roof in preparation for tiling: 1. The first set out nail is nailed at the front edge of fascia board or tilt batten, point “A”. The next set out nail is positioned to the underside of the first batten, point “B”. Required spacing is determined by using the first course set out dimension noted in the Tile Gauge Ready Reckoner found in the Bristile Roofing Specification and Installation manual.
Figure 33 Concrete tile batten set out procedure section
Uniform spacing as per table
C
B A
Top batten set out as noted on the Tile Gauge Ready Reckoner
2. The top batten set out nail position is also noted in the Tile Gauge Ready Reckoner and is measured from point “C” which is the apex of the truss or ridge rafters. 3. A measurement is made between points “B” and “C” and is then referred to the Tile Gauge Ready Reckoner which confirms the number of courses required to cover the nominated rafter length.
First (gutter) course set out as per table
Note: If there is significant thickness variation in supplied battens then set out should be from the top of the batten. Roofs installed in Victoria are also set out from the top of the batten.
4. The process is repeated at the other end of the roof. 5. A chalk line is snapped across the top of the rafters at each gauge mark. 6. A set out nail is fixed at each batten rafter/truss crossing. 7. The battens are then laid out on the set out nails ready for final fixing.
Bristile Roofing TECHNICAL MANUAL
7.5
VIENNA PROFILE
Figure 34 Vienna layout coursing details
Ridge tile
345mm
345mm
370mm
Clay tiles Tile batten Fascia
Rafter
50mm overhang
Section - Along rafter
Verge tile bedded to brickwork and fixed with 75 x 3.75 springhead galvanised anchor nails 242mm
Tile fixed to barge with 75 x 3.75 springhead galvanised anchor nails
242mm
242mm
Rafter
Tile batten
242mm
Scribed fillet on barge Rafter
Wallplate
Brickwork to finish flush with underside of tile batten
SWISS PROFILE
Section - Through rafters
Ridge tile
Figure 35 Swiss layout coursing details
365mm
365mm
370mm
Clay tiles Tile batten Fascia board
60mm overhang wide base gutter required
7.6
Bristile Roofing TECHNICAL MANUAL
Rafter
Section - Along rafter
Tile fixed to barge with 100 x 3.75 springhead galvanised nails
Double roll Swiss tile 275mm
220mm
220mm
Tile batten
Rafter
220mm
Scribed fillet on barge Rafter
Scribed barge board
Section - Through rafter
MARSEILLE PROFILE
Figure 36 Marseille layout coursing details Ridge tile
345mm
345mm
370mm
Clay tiles Tile batten Fascia
Rafter
50mm overhang
Section - Along rafter
Marseille starter verge tile fixed to barge with 75 x 3.75 springhead galvanised anchor nails
Marseille finishing verge tile bedded to brickwork and fixed with 75 x 3.75 springhead galvanised anchor nails
160mm
242mm
242mm
124mm
Scribed fillet on barge Tile batten Rafter Rafter Wallplate Brickwork to finish flush with underside of tile batten Section - Through rafters
Bristile Roofing TECHNICAL MANUAL
7.7
ROMAN PROFILE
Ridge tile
Figure 37 Roman layout coursing details
370mm
370mm
372mm
Clay tiles Tile batten Fascia
Rafter
60mm overhang wide base gutter required
Section - Along rafter
Roman finishing gable tile fixed to barge board with 75 x 3.75 springhead galvanised anchor nails 180mm
Brickwork to finish flush with underside of batten 221mm
221mm
225mm 55mm
Fixing plate to suit tile batten with 75 x 3.55 springhead galvanised achor nails Rafter Double roll Roman tile
Tile batten
Rafter Wallplate
Brickwork to finish flush with underside of tile batten 285mm
221mm 221mm 120mm
Section - Through rafters
LOADING
LAYING
Battening and sarking of the entire roof must be completed before tiles are loaded onto the roof. In buildings where the rafters are internally exposed, or the length of the truss top chord of rafter exceeds 6 metres, tiles should be loaded onto the structure from each side to ensure that their weight is evenly distributed.
Tiles are to be laid and secured in accordance with AS 2050 â&#x20AC;&#x153;Installation of roof tilesâ&#x20AC;?. All courses should be aligned horizontally, vertically and diagonally to ensure a straight finish at the roof edge and to achieve good roof aesthetics.
FIRST COURSE The first course of tiles should be positioned to provide an adequate projection over the fascia and into the gutter. For Bristile profiles this projection is normally 50mm. Note: Roman and Swiss terracotta profiles will require a 60mm projection. Due to this requirement the gutter width should be considered when using these profiles.
7.8
Bristile Roofing TECHNICAL MANUAL
BLENDING Layout is crucial due to the varying shades of colour which are a feature of terracotta tiles. Numerous tile colours in blended roofs involve the mixing of many tile shades as they are laid. A visual inspection of the roof should be carried out approximately 75 - 100 tiles into the installation to check courses and even distribution. Visual inspections of the roof should be repeated at regular intervals during installation. The same method should be employed when blending some concrete roof tiles.
SECURING OF TILES TILE CLIPS Bristile Roofing products are secured to the roof frame using a number of purpose made clips which make up our clipping system. These various clips are designed to fix different Bristile Roofing profiles and accessory fittings in a range of installation situations. All clips have been fully tested to comply with relevant fixing standards and are to be installed as per manufacturers specification to ensure the performance of the installed roof. Included below are a series of illustrations which detail how and where the main types of tile clips are fitted.
NAILS
Figure 38 Ajax wire clip
Non-ferrous or galvanised 2.8mm diameter nails, of sufficient length to pierce the rafter a minimum of 15mm should be used. Timber relevant nail requirements and wind loadings are specified in Table 7 on page 4.6 of this manual. The use of standard and heavy duty clips, eaves tile clips, screws and adhesives are offered in Bristile Roofing’s security fixing system. Further relevant information can be found in Section 2.4.2 of AS 2050.
STEEP AND VERTICAL PITCH
Figure 39 Ramlat clip
For roofs pitched between 40-70 degrees all tiles must be mechanically fixed. “Mechanical fixing” is achieved by nailing, screwing or clipping every tile. The method used is often dictated by the regional authority and they should be consulted during the design process. Clips are the preferred method of mechanical fixing where there are extreme conditions. If the roof has a greater pitch than 70 degrees it must be double mechanical fixed and sarked.
Figure 40 Head clip
Bristile Roofing TECHNICAL MANUAL
7.9
SECURING OF ACCESSORIES ACCESSORY TILES The installation of accessory tiles can only begin after the main roof tiles have been laid. Accessories manufactured by Bristile Roofing are detailed in the â&#x20AC;&#x153;Productâ&#x20AC;? sections of this manual. Weatherproofing of all junctions of hip and ridges is mandatory. The pitch, profile and position of the roof join dictates which accessories should be used.
LAYING Whilst allowing for the natural contour of ridge tiles, ridge and hip tiles must be laid in a straight line. Over-lapping ridge tiles should be directed away from prevailing winds where possible.
RIDGE
Figure 41 Ridge installation detail
Ridge tiles are laid onto a bed of mortar then finished with flexible pointing material.
Prevailing winds
Visible part of Coathanger ridge clip
25mm min
Bedding supports ridge tiles in correct alignment
Flexible pointing adheres ridges to roof tiles
Weep holes 6mm diameter formed in each water channel Tile battens
Figure 42 Ridge installation front section 30 max
Note: Coathanger ridge clip used only in New South Wales
Ridge tile
Weep holes both sides
Ridge clip fixed under top tile battens
Truss
Figure 43 Ridge installation side section Ridge tile Ridge clip fixed under top tile batten
Top tile batten
7.10
Bristile Roofing TECHNICAL MANUAL
Truss
HIP A hip starter or shell end is the beginning of a hip, sited on a bed of mortar at the lower end of the hip. There must be a maximum of 25mm between the planes of cut and laid roof tiles at the join of a hip. In line with the nose of the first course of tiles, a hip starter must be laid to project into the gutter. Alternatively, a ridge tile can be shaped to replace a hip starter.
Figure 44 Hip installation detail Hip board Tile battens 25mm space between cuts
Anti-ponding board
Hip tiles
Hip starter bedded and finished with flexible pointing. No voids to be visible.
Metal fascia
Figure 45 Offset (Bastard) Hip installation 450 x 450mm flashing installed at hip apex
Line of Bastard hips
Weepholes formed in bedding here
Long tile cuts with weather checks removed
A
Hip starter
A Gutter Hip starter trays or clips for roofs 30째 and over and on Yeoman roofs with hips over 2.5m with a pitch of greater than 25째.
Chinamans Hat Finial
Figure 46 Offset (Bastard) Hip installation (Section A-A) Bedding & flexible pointing Tiles long cut to rake
Tile Batten Hip Board Rafter
Hip batten with 5mm space to hip board
Bristile Roofing TECHNICAL MANUAL
7.11
WING RIDGE
Figure 47 Wing ridge (barge tile) detail
Where roof line terminates at a vertical wall a wing ridge is formed. This line of roof is covered by either a barge tile or steep angle ridge. The capping tile is mechanically fixed with a screw into the horizontal barge board. The edge of the capping tile that covers the roof is bedded and pointed to create a weatherproof seal.
Dampcourse must be installed under the barge tiles when used on a wing ridge. Tapered barge tile
Bedding & flexible pointing
From top of batten to top of barge board
75
Weepholes Type 17 x 14 barge screw
Horizontal barge board with saw cut to form drip groove
Rafter
Tile batten
Wall cladding Note: The steep angle ridge fitting (see Tile Accessories on page 8.5 of this manual) can also be used in this wing ridge application
Figure 48 Steep pitch detail Ridge Cap Reinforcing Mesh of Bitumen Impregnated Foam
Hooked Nail
STEEP PITCH Roofs pitched greater than 40 degrees require the use of Barge or Steep Angle Ridge tiles. The bed and pointing of the ridge, hip or gable can be strengthened by using galvanised wire or bitumenimpregnated foam.
Bedding Mortar
Flexible Pointing
Bristile Tile
Ridge Board Tile Batten Ridge Board
Figure 49 Valley Seal Installation Tile batten
VALLEY TILES The valley width is dependent on regional weather conditions. If the home is in a high rainfall area, valley tiles should be storm sealed. AS 2050 states that the roof tiles must overlap each side of the valley gutter by at least 150mm. In high rainfall areas, valley design, the use of valley seal and downpipe position should be carefully considered when designing the roof.
7.12
Bristile Roofing TECHNICAL MANUAL
Tapered or straight valley board (thick edge faces in)
Valley iron
Valley seal supports and adheres valley cuts to valley iron
FIRE WALLS All partition fire walls require an approved non- combustible material to fill the cavity between the top of the fire wall and the underside of the roof. Bristile Roofing recommends the use fire batts for this purpose. Apart from sarking and roof battens with a maximum section of 75mm x 50mm no other combustible material is allowed to cross the fire wall. Note: The illustrations to the right are only an example of how party wall insulation may be installed. The actual party wall insulation requirements for a given project should be confirmed on the working drawings.
Figure 50 Party Wall installation front elevation detail
Tile batten to continue over party wall. Maximum permissible batten size 75 x 50mm.
If sarking is being used it needs to be continue over party wall
Fire wall batt compressed between tiles and party wall 25
25
Rafter
Render trowelled to a smooth line on top of brick wall
230mm brick party wall
Figure 51 Party Wall installation side elevation detail Tile batten to continue over party wall. Maximum permissible batten size 75 x 50mm.
Fire wall batts compressed between the underside of the roof tiles and the top of the party wall.
Rafter
m 9 0m a x m
Render trowelled to a smooth line on top of brick wall 230mm brick party wall to finish no higher than 90mm to the top of the tile batten.
BUSHFIRE PROTECTION Supplementary fixing requirements apply to classified bush fire areas as per AS 3959. High fire hazard area can be identified by State authorities, insurers, country fire authorities or related bodies.
Bristile Roofing TECHNICAL MANUAL
7.13
BED AND POINT FINISH Place bedding strip of 5mm fibre cement 100mm wide over the metal “Z” flashing, which sits on top of the barge board and bed roof tile to same. The projection over the barge board shall be a minimum of 10mm and a maximum of 25mm. Bedding is pointed with an approved flexible pointing with no visible trowel marks With a bed and point finish the projections of gable ends should be left to the discretion of the tiler, thus ensuring the finishing off of a full tile at all left hand gables whenever practical. The exposed side water channel to all left hand gables should be removed, all verge tiles to a perimeter of 1200mm will be mechanically fixed.
Figure 52 Bed and Point verge detail Watercourse to be removed from gable tiles
Bedding 5 mm AC Strip
Flexible Pointing 10 min - 25 max
Tile batten End rafter
“Z” Flashing
Timber Barge (to finish 5mm below batten height)
Nogging
The barge board should be set down 5mm from the top side of the batten. This ensures that the AC strip and “Z” flashing slope down which ensures any collected moisture will run away from the roof space.
CONCRETE AND TERRACOTTA BARGE INSTALLATION Tapered barge tiles are a purpose made fitting designed to seal the gable end. Barge tiles are installed starting at the bottom of the gable where the first barge is trimmed around the gutter. The void formed is bedded and pointed to vermin proof the gable. Barge tiles are then laid one per tile course up the gable and secured with a Type 17 screw into the barge board. The apex barge is trimmed to match apex barge on opposite side. The join is then finished with flexible pointing. Terracotta barge tiles are fitted in the same way however as they are not tapered, they require bedding and pointing to the roof as shown in figure 54.
Figure 53 Concrete barge tile installation detail Concrete barge tile
Type 17 barge screw
Tile batten End rafter Metal Barge
Figure 54 Terracotta barge tile installation detail
Terracotta barge tile
Bedding & Pointing
Type 17 barge screw
Tile batten End rafter Metal Barge
Note: It is good practice for roof tiles on gable roofs to finish with equal length tiles at both ends. Local requirements and site exposure may dictate the gable end/verge finish to be used.
7.14
Bristile Roofing TECHNICAL MANUAL
CONCEALED SECRET GUTTER FINISH Where a clean line gable finish is required a concealed gutter can be used. The fascia is set up to cover the sides of the tiles and then a section of guttering is fitted over the fascia and supported on the tile battens. Tiles are then fitted to overlap the concealed gutter with a set back from the fascia of 20mm. Note: All gable cuts to be mechanically fixed.
Figure 55 Concealed gutter installation detail Watercourse to be removed from gable tiles Timber barge to project above tile batten
75
One piece concealed gutter flashing (by fascia & gutter fixer) Metal barge
Tile batten
Fly rafter Fascia bracket bent and fixed to fly rafter
BED AND POINT MATERIALS MORTAR MIX A sand:cement ratio of four parts clean, sharp sand to one part cement should be used for the bedding mortar mix (As documented in section 2.3 of AS 2050.) The “fattiness” of the mix can be improved by adding lime or mortar plasticisers to the mix where suitable sand is not available.
FLEXIBLE POINTING A very strong bond between the tile and ridge capping can be achieved by using Flexible Pointing, a highly pliable yet durable compound once cured. The use of Flexible Pointing produces the following benefits: » It will absorb the movement of a roof and is less prone to cracking than traditional mortar pointing » Allows the roof to be completed earlier as there is no need to wait for the roof to “settle” before pointing can begin » Saves time and money with a reduction in long-term roof maintenance » Reduces the need for mechanical fasteners as the bond between tile and ridge is very strong » Is resistant to leaching, efflorescence and fading, thereby maintaining the appearance of the roof for a much longer period » Once cured, Flexible Pointing resists moisture ensuring dampness will not seep under the ridge » Is flexible enough to allow for the removal and replacement of tiles if necessary » Available in a range of modern colours which match all Bristile Roofing products
APPLICATION
ROOF COMPLETION Upon completion of the job, tilers should take care to clean and remove all debris from the roof. Particular care should be taken to ensure the removal of metal debris (nails, screws) which may cause staining of the tiles or corrosion of gutters. Broken, cracked or chipped tiles should be replaced following a final roof check to ensure the roof is fully waterproof.
Using an approved formula or pre-mixed pointing material, pointing should be colour matched to the roof tiles. The flexible pointing material should be trowelled to a thickness of 3–5mm, ensuring that the pointing is in complete contact with the edge of the capping creating a neat, clean finish. An allowance for drainage weepholes may be required. Clean and brush free loose mortar and pointing particles from all tiles adjacent to the ridge and hip tiles.
Bristile Roofing TECHNICAL MANUAL
7.15
CARING FOR YOUR ROOF Bristile concrete products are structurally guaranteed to perform their function (eg. remaining waterproof), for 50 years. Our terracotta tiles are covered by the Colour for Life warranty (refer to the various warranties found in section 5 of this manual for full details). These warranties do not cover matters beyond Bristile Roofing’s control, such as: » Damage caused to the roof by other parties, eg. plumbers, TV antenna and air conditioning installers etc. » Falling objects » Air pollution » Acts of nature » Tiles being treated with incorrect chemicals or coatings » Acts of war or terrorism
Roof traffic should be minimised to ensure the roof remains watertight. Follow the hints below to minimise roof damage: » Observe safety requirements and only access your roof when absolutely necessary » Wear non-slip, soft sole footwear » Due to the slippery nature of tiles always be aware of weather and conditions » Extend ladders at least 1 metre past the gutter and secure » Only step on the lower centre of roof tiles » If heavy traffic is necessary secure a walkway of plywood, ladders, planks etc. » Use a long stick or rake where possible to remove objects from the roof » Remove roof tiles by kicking the lower centre of the tile towards the ridge » It is recommended you consult a roofing specialist if maintenance is required for the roof
SOME MAINTENANCE ADVISE FOR TILED ROOFS Leaks generally occur due to one of the following points, and are mostly confined to small areas: » Cracked or broken cement mortar bedding to the ridge or hip capping. (Capping should be re-bedded or re-pointed.) » Cracked or broken roof tiles. (Replace individual roof tiles.) » Roof tiles displaced. (Return tiles to their proper position.) » Blocked drainage channels under the ‘sidelaps’ of individual tiles. (Remove any built-up dirt or debris.) » Flashings blocked, damaged or displaced. (These problems should be corrected with the assistance of a qualified roof plumber if required). » Blocked gutters (including valley gutters) and downpipes. (Obstructing debris should be removed.)
7.16
Bristile Roofing TECHNICAL MANUAL
CONCRETE TILES BRISTILE CONCRETE TILES Concrete tiles were first produced in Germany in 1844 and were available in one colour. Advancements in technology has meant Bristile Roofing can now offer you concrete tiles that are stylish, strong, size exact, with high quality colour coatings that are extremely long lasting.
OUR CONCRETE RANGE ELEGANTLY COVERS EVERY STYLE OF HOME You’ll have a low maintenance roof that will save you money on upkeep and repairs over the long term, Bristile Roofing concrete tiles are made to last. By using qualified tiling contractors and following the recommendations detailed in this manual, Bristile Roofing concrete tiles will protect you from even the worst weather, from howling winds to fierce heat, from snow and ice to salt spray. Bristile Roofing tiles also offer noise reduction qualities, making them very suitable for high traffic (both air and road) locations. They are flexible in their ability to meet many roof design requirements and are available in different profiles that allow for even greater individual design expression.
ROOF TILES MANUFACTURE APPLICATION FIRE RESISTANCE MASS OF ROOFING
PERFORMANCE PRODUCT DETAIL
Tiles are manufactured to AS 2049. Within a range of pitches from 15o to vertical, tiles can be fixed as either roof or wall coverings. All tiles are fully fire resistant and incombustible according to ASTM(USA) E108–88 tests. (No comparable Standard available in Australia). To calculate timber sizes, allow 60kg/m2 for concrete tiles and battens for a pitched or truss roof with a flat ceiling. Based on a roof having a mass of 60kg/m2 plus a 10mm plaster ceiling, counter battens and light weight insulation, allow 90kg/m2 for a cathedral style ceiling. All roof tiles manufactured by Bristile Roofing conform to AS 2049. Refer to both the specific product details covered in this section and recommendations for the various profiles detailed in the section 4 “Design Considerations” of this manual.
Bristile Roofing TECHNICAL MANUAL
8.1
HACIENDA
THIS BOLD TILE WITH ITS LARGE ROLL SUITS A WIDE RANGE OF ROOF STYLES FROM TUSCAN TO CONTEMPORARY.
PRODUCT SPECIFICATION
Top isometric view
The Hacienda profile is used in the Designer and Traditional range.
COVERAGE 9.2M2
DIMENSIONS (NOMINAL) Length: 440 Width: 335 End elevation view
AVERAGE MASS Mass per tile: 4.9kg Mass per M2: 52kg
HEAD LAP Minimum head lap is 75mm. Head lap can be increased up to 110mm depending on the set out requirement of the roof.
8.2
Bristile Roofing TECHNICAL MANUAL
YEOMAN (SHINGLE & SHAKE)
THE TIMELESS ELEGANCE OF THE SHINGLE TILE IS CAPTURED WITH THE YEOMAN PROFILE. Shake top isometric view
PRODUCT SPECIFICATION Clever design provides a premium tile that has a subtle roll to aid in its ability to shed water. Available in a shingle or shake finish this popular roof tile adds street appeal to any project it is used on. This profile is used in the Classic range of tiles.
COVERAGE 9.2M2 Shingle top isometric view
DIMENSIONS (NOMINAL) Length: 440 Width: 335
AVERAGE MASS Mass per tile: 5.1kg Mass per M2: 55kg
HEAD LAP Shingle end elevation view
Minimum head lap is 75mm. Head lap can be increased up to 110mm depending on the set out requirement of the roof.
Bristile Roofing TECHNICAL MANUAL
8.3
VILLA
WHEN A TRADITIONAL ROOFLINE IS PREFERRED THE TIMELESS CHARM OF THE VILLA PROFILE WITH ITS CLEAN GEOMETRIC LINES IS THE PERFECT CHOICE.
PRODUCT SPECIFICATION
Top isometric view
This profile is used in the Heritage colour range of tiles
COVERAGE 9.2M2
DIMENSIONS (NOMINAL) Length: 440 Width: 335
AVERAGE MASS Mass per tile: 4.8kg Mass per M2: 52kg
HEAD LAP Minimum head lap is 75mm. Head lap can be increased up to 110mm depending on the set out requirement of the roof.
8.4
Bristile Roofing TECHNICAL MANUAL
End elevation view
LODGE (STRIATED & SMOOTH)
SLIM, SLEEK AND STYLISH THE LODGE PROFILE IS ALL CLASS. Striated top Isometric view
PRODUCT SPECIFICATION The Lodge is a sleek low profile tile that creates a stylish and totally flat roof appearance. Available in a striated and smooth finish this profile is offered in the Prestige range which is a favorite of designers and builders wanting to create homes of distinction. The Lodge profile is laid “Cross Bonded” with sarking underlay on all roofs regardless of pitch.
COVERAGE 9.2M2 Smooth top Isometric view
DIMENSIONS (NOMINAL) Length: 440 Width: 335
AVERAGE MASS Smooth end elevation view
Mass per tile: 5.3kg Mass per M2: 57kg
HEAD LAP Minimum head lap is 75mm. Head lap can be increased up to 110mm depending on the set out requirement of the roof.
Bristile Roofing TECHNICAL MANUAL
8.5
CHATEAU
EXLUSIVE TO BRISTILE ROOFING, THE CHATEAU PROFILE HELPS CREATE A DISTINCTIVE ROOF LINE SURE TO INSPIRE.
PRODUCT SPECIFICATION
Top isometric view
The Chateau profile is one of the most distinctive concrete tiles available. Available in the Vision range and exclusive to Bristile Roofing, this premium product will help any home stand out from the neighbours.
COVERAGE 9.2M2
DIMENSIONS (NOMINAL) Length: 440 Width: 335
AVERAGE MASS Mass per tile: 4.9kg Mass per M2: 52kg
HEAD LAP Minimum head lap is 75mm. Head lap can be increased up to 110mm depending on the set out requirement of the roof.
8.6
Bristile Roofing TECHNICAL MANUAL
End elevation view
BRISTILE CONCRETE TILE ACCESSORIES PROFILE
LENGTH
WIDTH
HEIGHT
WEIGHT
ANGLE
Ridge
440
250
70
3.4
150
Tapered Barge
440
200
140
4.3
75
Three Way Apex
345
420
95
3.4
150
Four Way Apex
TBC
TBC
TBC
TBC
150
Apex Finial
225
250
285
7.6
150
Gable Finial
305
250
285
5.1
150
Ridge Saddle
158
258
165
2.3
150
Spoon
480
425
130
7.0
150
Steep Angle Ridge (NSW only)
480
250
155
6.8
75
Chinaman’s Hat
460
460
420
17.5
150
Bristile Roofing TECHNICAL MANUAL
8.7
MARSEILLE
ORIGINATING IN FRANCE THIS CLASSIC STYLE OF TERRACOTTA TILE CONTINUES THE PROUD TRADITION OF THE TILE MAKER’S CRAFT. Top isometric view
PRODUCT SPECIFICATION This original and very French profile is perfect for projects where that traditional terracotta look is required.
COVERAGE 12M2
DIMENSIONS (NOMINAL) End elevation view
Length: 450 Width: 278
AVERAGE MASS Mass per tile: 4kg Mass per M2: 50.4kg
Bristile Roofing TECHNICAL MANUAL
9.1
VIENNA
A TILE TO COMPLIMENT TODAY’S VARIED ARCHITECTURAL STYLES, THE PACE AND DIVERSITY OF MODERN CITY LIVING IS REFLECTED IN STRONG, STRAIGHT LINES OF THIS TILE.
PRODUCT SPECIFICATION
Top isometric view
A tile to compliment today’s varied architectural styles, Bristile Vienna tiles provide a selection of fashionable colour choices to compliment any home.
COVERAGE 12M2
DIMENSIONS (NOMINAL) Length: 450 Width: 278
AVERAGE MASS Mass per tile: 4.1kg Mass per M2: 52.4kg
9.2
Bristile Roofing TECHNICAL MANUAL
End elevation view
SWISS
MODERN CONTEMPORARY OR MORE TRADITIONAL ARCHITECTURAL STYLES BENEFIT EQUALLY WHEN USING THE CLASSIC AND ENDURING BEAUTY OF THE SWISS PROFILE. Top isometric view
PRODUCT SPECIFICATION Steeper pitched roofs with broad roof planes in particular, really show off this profile’s striking shape.
COVERAGE 12M2
DIMENSIONS (NOMINAL) End elevation view
Length: 455 Width: 275
AVERAGE MASS Mass per tile: 4.15kg Mass per M2: 52kg
Bristile Roofing TECHNICAL MANUAL
9.3
ROMAN
THE BOLD LINES OF THE ROMAN PROFILE IS UNIQUE TO BRISTILE ROOFING AND WILL TURN ANY ROOF INTO A FEATURE.
PRODUCT SPECIFICATION
Top isometric view
The strong continental influence inspired by traditional Italian architecture makes this tile ideal for mediterranean or tuscan style homes.
COVERAGE 12M2
DIMENSIONS (NOMINAL) Length: 445 Width: 285
AVERAGE MASS Mass per tile: 4.2kg Mass per M2: 53.6kg
9.4
Bristile Roofing TECHNICAL MANUAL
End elevation view
BRISTILE TERRACOTTA TILE ACCESSORIES PROFILE
LENGTH
WIDTH
HEIGHT
WEIGHT
ANGLE
Double Roll Swiss
445
275
70
4.5
N/A
Roman Ridge
440
255
120
4.3
90°
3 Way Roman Apex
440
255
120
4.3
90°
4 Way Roman Apex
400
400
150
6.0
90°
Roman Barge R/H Starter
440
110
115
2.0
90°
Roman Barge L/H Finisher
440
110
115
2.0
90°
Roman Hip Starter
450
230
120
3.2
90°
Roman Double Roll
445
390
80
6.0
N/A
Roman Eave Closer
445
280
80
6.5
N/A
Roman Double Roll Eave Closer
445
390
80
6.5
N/A
Roman Gable End “B” Infill
20
220
230
1.5
N/A
Standard Ridge
457
216
90
4.4
120
Special Ridge
432
215
120
3.6
90°
Saddle Ridge
216
224
185
3.1
120°
Bristile Roofing TECHNICAL MANUAL
9.5
9.6
Bristile Roofing TECHNICAL MANUAL
PROFILE
LENGTH
WIDTH
HEIGHT
WEIGHT
ANGLE
3 Way Standard Apex
310
330
100
1.9
120°
4 Way Standard Apex
270
270
120
3.8
120°
Marseille Verge Starter (R/H)
450
160
50
2.8
N/A
Marseille Verge Finisher (L/H)
450
160
50
2.8
N/A
Standard Hip Starter
445
216
75
3.8
120°
Bullnose Hip Starter
450
216
90
4.0
90°
3 Way Apex Acorn Finial
410
310
410
6.4
120°
4 Way Apex Acorn Finial
400
400
480
7.5
120°
Gable End Acorn Finial
450
220
420
7.8
120°
3 Way Apex Scroll Finial
420
320
310
6.3
120°
Gable End Ball Finial
450
220
420
9.2
120°
Gable End Scroll Finial
450
220
295
7.5
120°
Collarless Ridge
460
220
70
4.4
120°
Collarless Hip Starter
425
220
70
3.8
120°
BED AND POINT BARGE BOARD SET UP Watercourse to be removed from gable tiles
Flexible Pointing
Tile batten “Z” Flashing
Timber Barge
End rafter
Nogging
(to finish 5mm below batten height)
BED & POINT BARGE BOARD SET UP Drawing No. BTR01 Not to scale Author: Bristile Roofing Issued: September 2005
Bristile Roofing TECHNICAL MANUAL
10.1
CHANGE OF PITCH o
(45 OR LESS) Internal pitch change angle between 6째 and 30째
Sarking to come up past the first batten
45째 or less
15째
Rafter
CHANGE OF PITCH (45o OR LESS) Drawing No. BTR002 Not to scale Author: Bristile Roofing Issued: September 2005
10.2
Bristile Roofing TECHNICAL MANUAL
CHANGE OF PITCH o
(MORE THAN 45 )
Rafter
Flashing dressed onto tiles by plumber Sarking to come up past the first batten
More than 45째
15째
Internal pitch change angle greater than 30째
Tilt batten 25 mm thicker than tiling battens
CHANGE OF PITCH (MORE THAN 45o) Drawing No. BTR003 Not to scale Author: Bristile Roofing Issued: September 2005
Bristile Roofing TECHNICAL MANUAL
10.3
CHIMNEY FLASHING Flashing over valley tray upstand
Galv. tray chimney surround
Flashing dressed min. 200mm over tiles Rafters 100 x 50 Bristile Roof Tiles
Two 100 x 50 trimmers leave 10mm clear of brickwork
Chimney stack
Ledger beam for rafters packed 10mm off brickwork with FC strips
CHIMNEY FLASHING Drawing No. BTR004 Not to scale Author: Bristile Roofing Issued: September 2005
10.4
Bristile Roofing TECHNICAL MANUAL
CHIMNEY TRAY
Chimney Tray
Weep Hole
Over Flashing Back Gutter Step Flashing
Tile
Boarding Block to support Back Gutter
Tile Batten Rafter
CHIMNEY TRAY Drawing No. BTR005 Not to scale Author: Bristile Roofing Issued: September 2005
Bristile Roofing TECHNICAL MANUAL
10.5
CONCEALED FLASHING TO GABLE END
Watercourse to be removed from gable tiles Timber barge to project above tile batten
75
One piece concealed gutter flashing (by fascia & gutter fixer) Metal barge Fly rafter Fascia bracket bent and fixed to fly rafter
CONCEALED FLASHING TO GABLE END Drawing No. BTR006 Not to scale Author: Bristile Roofing Issued: September 2005
10.6
Bristile Roofing TECHNICAL MANUAL
Tile batten
CONCEALED GUTTER FLASHING TO ABUTMENT
Stepped soft zinc flashing by plumber.
Tile batten
12 38
Timber support for concealed gutter
150
Zincalume速 concealed gutter by plumber.
CONCEALED GUTTER FLASHING TO ABUTMENT Drawing No. BTR007 Not to scale Author: Bristile Roofing Issued: September 2005
Bristile Roofing TECHNICAL MANUAL
10.7
COUNTER BATTEN Sarking membrane allowed to dish a minimum of 20mm and a maximum of 40mm.
Tile batten
Counter batten Ceiling lining
Exposed rafter
COUNTER BATTEN Drawing No. BTR008 Not to scale Author: Bristile Roofing Issued: September 2005
10.8
Bristile Roofing TECHNICAL MANUAL
DUTCH GABLE DETAIL Tapered barge tile
Rafter Metal barge
Tile batten
Gable cladding 75
Flashing to have a 75mm up-stand behind cladding
Flashing
Tile batten
Rafter
DUTCH GABLE DETAIL Drawing No. BTR009 Not to scale Author: Bristile Roofing Issued: September 2005
Bristile Roofing TECHNICAL MANUAL
10.9
EXPOSED RAFTER ax
in 0m
2
Tile batten Sarking
Counter batten
Exposed rafter
Ceiling lining
EXPOSED RAFTER Drawing No. BTR010 Not to scale Author: Bristile Roofing Issued: September 2005
10.10
Bristile Roofing TECHNICAL MANUAL
0m
-4
CONCRETE BARGE TILE
Tapered barge tile
Type 17 barge screw End rafter
Tile batten
Metal Barge
CONCRETE BARGE TILE Drawing No. BTR011 Not to scale Author: Bristile Roofing Issued: September 2005
Bristile Roofing TECHNICAL MANUAL
10.11
TERRACOTTA BARGE TILE
Terracotta barge tile
Bedding & Pointing
Type 17 barge screw
Tile batten End rafter Metal Barge
TERRACOTTA BARGE TILE Drawing No. BTR012 Not to scale Author: Bristile Roofing Issued: September 2005
10.12
Bristile Roofing TECHNICAL MANUAL
FASCIA SET UP Tile Batten Sarking
Fascia to be set up 25mm + the thickness of the tile batten used on the roof
Anti Ponding Board
Truss / Rafter
Fascia Board
FASCIA SET UP Drawing No. BTR013 Not to scale Author: Bristile Roofing Issued: September 2005
Bristile Roofing TECHNICAL MANUAL
10.13
FLASHINGS AT TIMBER SIDE ABUTMENT
Weatherboards to stud wall
Noggin to support flashing
Counter flashing turned up to full length of roof
Sarking
Rafter
FLASHINGS AT TIMBER SIDE ABUTMENT Drawing No. BTR014 Not to scale Author: Bristile Roofing Issued: September 2005
10.14
Bristile Roofing TECHNICAL MANUAL
Bristile Roof Tiles
Tile batten
FLASHINGS TO BRICK ABUTMENT
Apron flashing dressed onto tile profile
152
min
by plumber Apron flashing fitted to brickwork by plumber
Tile batten 25
Rafter
FLASHINGS TO BRICK ABUTMENT Drawing No. BTR015 Not to scale Author: Bristile Roofing Issued: September 2005
Bristile Roofing TECHNICAL MANUAL
10.15
FLEXIBLE POINTING Ridge collar Flexible pointing smooth trowelled on to an average thickness of 3mm at top and 5mm at bottom
Keep edge of ridge tile clean of bedding
Under bedding
Weepholes formed in bedding and pointing to allow drainage of moisture under the ridge tile.
(a) Ridge Bedding Bedding to be finished to this point
(b) Bedding with Rake
Bedding to be raked here
(c) Pointed Ridge Flexible pointing to be finished to this point
Flexible pointing to be finnished plumb
FLEXIBLE POINTING Drawing No. BTR016 Not to scale Author: Bristile Roofing Issued: April 2009
10.16
Bristile Roofing TECHNICAL MANUAL
INSTALLED SARKING
Sarking membrane
Anti ponding board
150 Sarking membrane head lap joint
Anti flap pads placed under all tile battens and sarking laps if required
INSTALLED SARKING Drawing No. BTR017 Not to scale Author: Bristile Roofing Issued: September 2005
Bristile Roofing TECHNICAL MANUAL
10.17
HIP END Hip board
Tile battens 25mm space between cuts
Anti-ponding board
Hip tiles
Metal fascia
HIP END Drawing No. BTR018 Not to scale Author: Bristile Roofing Issued: April 2009
10.18
Bristile Roofing TECHNICAL MANUAL
Hip starter bedded and finished with flexible pointing. No voids to be visible.
MANSARD DETAIL
Anti-ponding board for flashing and sarking
Tilt batten by builder
Flashing by roof plumber
Tile batten
Sarking with 150mm lap to upper and lower sections
MANSARD DETAIL Drawing No. BTR019 Not to scale Author: Bristile Roofing Issued: September 2005
Bristile Roofing TECHNICAL MANUAL
10.19
WING RIDGE Dampcourse must be installed under the barge tiles when used on a wing ridge. Tapered barge tile
Bedding & flexible pointing
75
From top of batten to top of barge board
Weepholes Type 17 x 14 barge screw
Horizontal barge board with saw cut to form drip groove
Tile batten
Rafter Wall cladding
Note: The steep angle ridge fitting (see Tile Accessories on page 8.5 of this manual) can also be used in this wing ridge application
WING RIDGE Drawing No. BTR020 Not to scale Author: Bristile Roofing Issued: April 2009
10.20
Bristile Roofing TECHNICAL MANUAL
STANDARD RIDGE CAP 30 max Ridge tile
Weep holes both sides
Tile battens
Truss
STANDARD RIDGE CAP Drawing No. BTR021 Not to scale Author: Bristile Roofing Issued: April 2009
Bristile Roofing TECHNICAL MANUAL
10.21
STEEP PITCHED RIDGE Barge or Steep Angle Ridge
Hooked Nail
Reinforcing Mesh of Bitumen Impregnated Foam
Flexible Pointing
Bedding Mortar Bristile Tile
Ridge Board
Tile Batten
STEEP PITCHED RIDGE Drawing No. BTR022 Not to scale Author: Bristile Roofing Issued: September 2005
10.22
Bristile Roofing TECHNICAL MANUAL
STEPPED COVER FLASHING 12min Tile setback
Stepped flashing by plumber.
Flashing dressed onto tile profile by plumber.
Tile batten Rafter
STEPPED COVER FLASHING Drawing No. BTR023 Not to scale Author: Bristile Roofing Issued: September 2005
Bristile Roofing TECHNICAL MANUAL
10.23
FIRE WALL SET UP Tile batten to continue over party wall. Maximum permissibl batten size 50 x 75 mm.
If sarking is used it needs to continue over party wall
Fire wall batt compressed between tiles and party wall 25
25
Rafter
230 mm brick
Render trowlled to a smooth line on top of brick wall Note: This is a typical example of how a fire wall is constructed but can vary from this on different projects. Always check the working drawings to confirm actual fire wall design.
FIRE WALL SET UP Drawing No. BTR024 Not to scale Author: Bristile Roofing Issued: September 2005
10.24
Bristile Roofing TECHNICAL MANUAL
VALLEY FINISH Tile cuts to be fixed with purpose made valley pegs as shown
Adhesive not to be applied to nose of valley cuts Tile batten
Sarking installed under valley batten, is not to protrude into valley Tapered or straight valley board (thick edge faces in)
Valley iron Valley batten
Valley rafter
VALLEY FINISH Drawing No. BTR025 Not to scale Author: Bristile Roofing Issued: April 2009
Bristile Roofing TECHNICAL MANUAL
10.25
NORTH LAKES RETIREMENT VILLAGE
ON THE NORTH SIDE OF BRISBANE AT THE NORTH LAKES ESTATE IN MANGO HILL, THE 18TH RETIREMENT VILLAGE BUILT BY J&G KNOWLES PTY LTD IS TAKING SHAPE. This large urban project covers 8.5 hectares and consists of 170 luxury villas, 58 independent luxury apartments, 28 fully serviced apartments and associated community buildings. The development commenced on site in late April 2004 and is due for completion in September 2006 well ahead of schedule. J&G Knowles Pty Ltd is a
Melbourne based company specialising in the development and management of retirement villages, they have been perfecting their business model for the last 30 years. The company has its own in-house design department and utilise their years of experience to produce village environments
Bristile Roofing TECHNICAL MANUAL
11.1
“MARKET LOVES TERRACOTTA PRODUCT, THEY ASSOCIATE PRESTIGE AND DURABILITY WITH THIS PREMIUM PRODUCT”
11.2
which appeal to their core market. Terry Edwards, the chief architect on this project, had a specific look in mind when it came to the roof: “In keeping with the intended ‘Californian’ design theme we specified a roof product that would compliment the sandstone render we wanted to use. The blend of 70% Sunset, 20% Natural Blend, 10% Ivory in the Swiss profile gave us the exact colour and look we were looking for.” Terry explained.
very clear about the design criteria of their projects and the materials used to construct them. Construction Manager Des Powell, foresees significant long term benefits in using terracotta roof tiles: “Because we know we will be looking after these properties for the long term it is very important that we use products we know will stand the test of time and won’t require significant upkeep or maintenance”.
The company not only designs and builds villages but also handles their marketing and ongoing management. As a result of this vast experience the company’s management is
After costing several roofing options the company decided that Bristile Roofing terracotta tiles would best suit their overall requirements.
Bristile Roofing TECHNICAL MANUAL
“In our experience terracotta tiles are the most durable and low maintenance roof system available. We know that in decades to come the product will look as good as it does today. They may require a clean with a high-pressure water cleaner from time to time but that’s all. We know this for a fact because we have many villages featuring terracotta tiles that have really stood up well to the test of time.” said Des. The company operates in a booming but very competitive market and they know that the product they offer must be top quality in order to attract customers. The use of a prestige product such as terracotta roof tiles gives the North
“TERRACOTTA TILES HAVE BEEN USED BECAUSE J&G KNOWLES MANAGE THE VILLAGES AFTER THEY HAVE BEEN BUILT SO THEY WANT DURABLE LOW MAINTENANCE ROOFS WHICH REMAIN SO FOR DECADES TO COME.” - DES POWELL, CONSTRUCTION MANAGER
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Lakes project a visual advantage. “The market loves terracotta roofs, they associate quality and prestige with the product.” Des explained. The terracotta look is enhanced even further with ‘Roman’ ridge fittings which were specified on the North Lakes project. Their height and shape really accentuate hip and ridge lines and give the roof that extra visual interest. “Even at a distance the ridge lines stand out and the tilers have paid close attention to keeping them gun barrel straight which is so critical with these types of fittings.” Des said. Part of the great appeal of a tiled roof is that a designer is not restricted to one colour. For a small fee Bristile Roofing will blend up to four
different tile colours on a roof. This means the roof colour can be customised to suit any project requirements. This is a real advantage for builders and designers who want their projects to stand out from the rest. Blended tiles have been used to great effect at the North Lakes Retirement Village. Des has been very happy with the workmanship of the dedicated tiling crew who have worked on the project from the beginning. “The blending of the tiles has been very consistent on all the roofs installed to this stage. The results are very pleasing and really set off the exterior of each building.”
DES POWELL, CONSTRUCTION MANAGER
A project of this scale operates on extremely critical construction schedules and the installation of the roof is a key component of the overall schedule. Bristile Roofing contracting staff and on site representative David Tregear have worked closely with the on site construction team to ensure roofs are installed and finished on time. “We have been very happy with the way the contracting work has been handled. Bristile Roofing management have worked hard to ensure that any site issues (particularly at the beginning of the project) were sorted out quickly which meant our program was generally unaffected” said Des.
Bristile Roofing TECHNICAL MANUAL
11.3
PROJECT INFORMATION NAME OF DEVELOPMENT TYPE OF DEVELOPMENT TOTAL ROOF AREA NUMBER OF BUILDINGS STREET ADDRESS SUBURB PROJECT COMPLETION DATE OTHER BRICKWORKS PRODUCTS
North Lakes Retirement Village Retirement Village 36,500M2 75 Endeavour Drive Mango Hill September 2006 Austral Terracade, Austral Avanti common double height bricks, Ashgrove and Birkdale pavers
PRODUCT INFORMATION TILE / BLEND COLOUR PROFILE RIDGE TYPE
Sunset 70%, Natural Blend 20%, Ivory 10% Swiss Roman
BUILDER INFORMATION BUILDER NAME BUILDER CONTACT CONTACT PHONE POSTAL ADDRESS SUBURB POST CODE EMAIL ADDRESS
J&G Knowles & Associates Pty Ltd Des Powell 0414 071 355 P.O. Box 207 Mango Hill 4509 Des.powell@retire.com.au
DESIGNER INFORMATION DESIGNER NAME DESIGNER CONTACT PHONE POSTAL ADDRESS SUBURB POST CODE
J&G Knowles & Associates Pty Ltd Terry Edwards 03 9559 7200 346 South Hampton Road Hampton East 3188
DESIGN CONSIDERATIONS Roof durability, low ongoing maintenance, prestige product to support the “Californian” design theme
INSTALLATION CONSIDERATIONS Reliable installation, consistent blending of product, straight hip installation
11.4
Bristile Roofing TECHNICAL MANUAL
STELLAR AT CARINA HOUSING PROJECT
“STELLAR AT CARINA” IS SITUATED IN A CONVENIENT LOCATION AT 1 CELESTIAL COURT, CARINA WHICH ALLOWS READY ACCESS TO BRISBANE’S CBD, MORETON BAY, AND THE DYNAMIC GOLD COAST REGION. Clean, green and contemporary were the design tenets that award winning builder and Australian icon AVJennings insisted upon when they began to develop their “Stellar at Carina” project. The vision was a built
environment that would achieve a harmonious blend of cutting edge design, diverse building materials and a colour palette that would complement the open parkland setting of the site.
Bristile Roofing PRODUCT & SPECIFICATION CATALOGUE
11.5
“A ‘MINIMALIST’ YET STYLISH LOOK WAS WHAT WE WERE AFTER. THE DESIGNS NEEDED TO BE ENERGY EFFICIENT UTILISING MATERIALS AND DESIGN ELEMENTS THAT WOULD REDUCE DEMAND ON ENERGY TO HEAT AND COOL THE HOMES.”
Michael Jullyan of Michael Jullyan Architects created the original design concepts for AVJennings. John Fowell (General Manager - Integrated Housing QLD) explained: “A ‘minimalist’ yet stylish look was what we were after. The designs needed to be energy efficient utilising materials and design elements that would reduce demand on energy to heat and cool the homes.” The muted tones of Bristile Roofing‘s Cane, Slate and Birch tiles were selected. Drawn from the Classic range, which have a flat shingle appearance they fitted perfectly into the overall design concept.
11.6
Bristile Roofing TECHNICAL MANUAL
After the initial concept designs were accepted, John’s internal team completed their development to approved plan stage. Structural design though was not their sole focus, a desire to create quality green space was also actively persued. As a result of this effort, the landscape work for the project was awarded Queensland Association of Landscape Industries (QALI) awards for construction & design excellence. As John says “We take every opportunity to create a total living environment which considers the blending of all site elements, not just the bricks
and mortar. In fact we have reserved over 1.5 hectares on the site as a green zone.” On this project AVJennings have demonstrated that a blend of different building materials allows for a much more interesting streetscape which caters to a wider range of customer’s tastes. John says “We made a conscious decision to incorporate several different styles of homes to ensure visual interest and move away from the traditional medium to high density tradition of having two or three standard designs and then
“IT IS EXTREMELY IMPORTANT IN A PROJECT OF THIS SIZE, THAT ROOFS ARE FITTED AND FINISHED OFF WHEN REQUIRED AND BRISTILE ROOFING HAVE NEVER LET US DOWN.” - JOHN FOWELL, GENERAL MANAGER - INTEGRATED HOUSING QLD
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JOHN FOWELL, GENERAL MANAGER - INTEGRATED HOUSING QLD
duplicating them repeatedly throughout a project.” In the end, 13 spacious 23 – 25 square designs were developed. The goal for all of them was elegant alfresco living with an accent on style. “Stellar at Carina” is situated in a convenient location at 1 Celestial Court, Carina which allows ready access to Brisbane’s CBD, Moreton Bay, and the dynamic Gold Coast region. Dianne Gould (Sales & Marketing Manager Integrated Housing QLD) says “Stellar at Carina allows people to have all the benefits
of living in a house, without the burden of a big yard and regular maintenance. Aside from size and maintenance benefits, Stellar at Carina’s strength lies in the homes’ exceptional design, high quality, high level of standard inclusions and affordable pricing”.
on-site management were very happy with the well-managed Bristile Roofing contracting team and said “It is extremely important in a project of this size, that roofs are fitted and finished off when required and Bristile Roofing have never let us down.”
The market response has been exceptional with completion due mid 2007. The schedule has been greatly assisted by Bristile Roofing’s commitment to ensure delivery and installation of product is on time. John points out that
As a major supplier and installer of quality terracotta and concrete roof tile products, Bristile Roofing is proud to have been associated with AVJennings and their trend setting “Stellar at Carina” project.
Bristile Roofing TECHNICAL MANUAL
11.7
PROJECT INFORMATION NAME OF DEVELOPMENT TYPE OF DEVELOPMENT TOTAL ROOF AREA NUMBER OF BUILDINGS STREET ADDRESS SUBURB PROJECT COMPLETION DATE
Stellar at Carina Medium Density Housing 14,560m2 91 1 Celestial Court Carina Mid 2007
PRODUCT INFORMATION TILE / BLEND COLOUR PROFILE RIDGE TYPE
Classic Range - Cane, Slate, Birch Yeoman - Shake Standard
BUILDER INFORMATION BUILDER NAME BUILDER CONTACT CONTACT PHONE POSTAL ADDRESS SUBURB POST CODE
AVJennings John Fowell 07 3361 3766 56-58 Jephson Street Toowong 4006
DESIGNER INFORMATION DESIGNER NAME DESIGNER CONTACT PHONE POSTAL ADDRESS SUBURB POST CODE
Michael Jullyan Architects Michael Jullyan 07 3396 1719 P.O. Box 5129 Manly 4179
DESIGN CONSIDERATIONS Clean uncluttered lines, use of varied building materials, focus on environmentally sustainable design, energy efficient, neutral colours.
INSTALLATION CONSIDERATIONS Well managed on site delivery and installation of product ensured that critical construction deadlines were always met. Ability to co-ordinate with other trades on high set work.
11.8
Bristile Roofing TECHNICAL MANUAL
TAMARI PLACE RESIDENTIAL PRECINCT
THE NEW “TAMARI PLACE” RESIDENTIAL PRECINCT AT PETRIE ON BRISBANE’S NORTH SIDE IS A GREAT EXAMPLE OF PROVIDING CUSTOMERS WITH AFFORDABLE AND SUSTAINABLE HOUSING. As one of Australia’s leading homebuilders, AVJennings takes its responsibility to provide its customers with affordable and sustainable housing very seriously. The new “Tamari Place” residential precinct at Petrie on Brisbane’s north side is a great example of this. This new community was designed and built from the ground up, with the aim
of creating an environment which was great to live in and would at the same time reduce demand on resources and place less stress on the environment as a whole. The 11 three and four bedroom homes which make up the project are all energy rated to five stars. This was achieved by implementing
Bristile Roofing TECHNICAL MANUAL
11.9
“TAMARI PLACE WAS AN OPPORTUNITY FOR US TO BRING TOGETHER EXISTING HOME DESIGNS AND INTRODUCE SOME SIMPLE IDEAS THAT WOULD CREATE A HOUSING PROJECT THAT WAS AFFORDABLE, LOOKED GREAT AND WAS ENVIRONMENTALLY SUSTAINABLE.”
some simple ideas like the installation of low energy lighting and split solar hot water or heat pump hot water systems. The homes are also orientated to take full advantage of a Northerly aspect. Good passive design means less dependence on artificial cooling or heating; to maximise cooling in summer the homes take advantage of prevailing breezes, in winter exposure to the sun helps keep them warmer. The end result is less energy used and less greenhouse emissions introduced into the atmosphere. Another key design consideration of this project was water conservation and management. The residents of Tamari Place will enjoy the benefits of harvested rainwater. Four massive 22,500 litre communal storage tanks have been installed underground to collect and store rain water run off. This precious resource is then used to irrigate
11.10
Bristile Roofing TECHNICAL MANUAL
gardens and to flush toilets. Collecting run off in this way also reduces pollution, local flooding and soil erosion. Other water saving devices like AAA rated showers and AAAA rated toilets will also save many thousands of litres year after year. Mark Henesey-Smith of AVJennings said “Tamari Place was an opportunity for us to bring together existing home designs and introduce some simple ideas that would create a housing project that was affordable, looked great and was environmentally sustainable. We were keen to use existing designs because that helped us to keep costs down which translated into more affordable housing.” Bristile Roofing was able satisfy AVJennings’ requirements on all counts. The Designer range of concrete roof tiles used on this
project represent great value for money compared with other types of roofing materials. This range of tiles has proved very popular with colour consultants. The Designer colours used at Tamari Place were Mallee, Brushwood and Mocha Gumnut and they blended perfectly into the beautiful bushland setting that frames the project. “However,” Mark said, “having great product is one thing but having the service to match is also very important. Bristile Roofing have proved to be reliable throughout the entire process, from quote to acceptance, supply and installation. Bristile Roofing follows an efficient and systematic installation process, that helps us maintain very tight construction schedules.” AVJennings also saw an environmental advantage in using the complete Bristile
“HAVING GREAT PRODUCT IS ONE THING BUT HAVING THE SERVICE TO MATCH IS ALSO “HAVING GREAT PRODUCT IS ONE THING BUT HAVING THE SERVICE TO MATCH IS ALSO VERY IMPORTANT. BRISTILE ROOFING HAVE PROVED TO BE RELIABLE THROUGHOUT VERY IMPORTANT. BRISTILE ROOFING HAVE PROVED TO BE RELIABLE THROUGHOUT THEENTIRE ENTIREPROCESS, PROCESS,FROM FROMQUOTE QUOTETOTOACCEPTANCE, ACCEPTANCE,SUPPLY SUPPLYAND ANDINSTALLATION” INSTALLATION” THE MARK HENESEY-SMITH - EXECUTIVE GENERAL MANAGER, AVJENNINGS
- MARK HENESEY-SMITH - EXECUTIVE GENERAL MANAGER, AVJENNINGS
MARK HENESEY-SMITH EXECUTIVE GENERAL MANAGER, AVJENNINGS
Roofing system that includes roof tiles, a sarking membrane and efficient roof ventilation. To begin with concrete tiles have low embodied energy* when compared to some other kinds of roofing materials. Concrete tiles also have mass that helps to even out temperature peaks and lows when measured inside the living space. Even greater control of the heat transfer through the roof system is gained by having sarking installed under the roof tiles. Sarking is the reflective foil membrane that not only reflects up to 90% of radiant heat, but also reduces dust in the ceiling space. Finally, effective roof ventilation achieved by the use of roof vents reduces the amount of hot air inside the roof space which in turn reduces the temperature in the living spaces. As an HIA Greensmart Leader, the research and development team at Bristile Roofing are
constantly looking for new ways to reduce the impact the manufacture and use of our products has on the environment. Another key objective of the Tamari Place project was to make allowance for residents with limited mobility. Mark Henesey-Smith said, “The future needs of an ageing population and those with limited mobility have been catered for at Tamari Place. One of the houses was specifically designed with these types of residents in mind. The “disabled enabled” home incorporates design features such as a hobless shower recess, disabled toilet, vanity with removable cupboard, wider hallways and doors as well as wide circulation areas in living spaces. These modifications are relatively easy and inexpensive to include during construction and will translate into good re-sale in the future”
Interest in Tamari Place has justified the effort that AVJennings has put into its development. All houses were sold before the project was completed. Mark says ‘We have gained invaluable experience during the design and construction of Tamari Place. Customers are always asking us for ways to provide design options that will provide them with more liveable homes that are less expensive to run and are more environmentally sustainable. The great thing is that many of the lessons learnt at Tamari Place will now be incorporated into other standard AVJennings home designs.” Bristile Roofing has been proud to be included in this outstanding development and congratulate the AVJennings team on its success.
Bristile Roofing TECHNICAL MANUAL
11.11
PROJECT INFORMATION NAME OF DEVELOPMENT TYPE OF DEVELOPMENT TOTAL ROOF AREA NUMBER OF BUILDINGS STREET ADDRESS SUBURB PROJECT COMPLETION DATE
Tamari Place Planned Residential Precinct 3,325m2 11 Tamari Place Petrie September 2006
PRODUCT INFORMATION TILE / BLEND COLOUR PROFILE RIDGE TYPE
Mallee, Gumnut, Brushwood, Mocha Designer/Hacienda Standard Ridge
BUILDER INFORMATION BUILDER NAME BUILDER CONTACT CONTACT PHONE POSTAL ADDRESS SUBURB POST CODE
AVJennings Jessica Hamilton 07 3361 3777 56 Jephson Street Toowong 4066
DESIGNER INFORMATION DESIGNER NAME DESIGNER CONTACT PHONE POSTAL ADDRESS SUBURB POST CODE
AVJennings in house design team Ronald Graham 07 3361 3777 56 Jephson Street Toowong 4066
DESIGN CONSIDERATIONS Affordability. Passive thermal design to reduce the need to heat and cool the dwellings artificially. Work with existing house designs and modify them to satisfy the 5 star energy rating requirements. Project was seen as a pilot development that would allow new ideas to be incorporated into other AVJennings home designs.
INSTALLATION CONSIDERATIONS A systematic and efficient installation process to aid in the management of tight construction schedules. Quality presentation and outcome for owners.
11.12
Bristile Roofing TECHNICAL MANUAL
HUNTERS GREEN RETIREMENT VILLAGE
THE NEW HUNTER’S GREEN AT CRANBOURNE ON MELBOURNE’S EASTERN FRINGE, EXEMPLIFIES MAXIMUM UTILISATION, PRIVACY, INDIVIDUAL APPEAL AND FIVE STAR ENERGY EFFICIENCY. Zig Inge is a retirement village pioneer, having built his first development in 1979. His company is now Australia’s largest “for profit” retirement village operator with 16 villages in four states under management, accommodating over 2500 residents. Macquarie Capital Alliance Group recently acquired a 49 percent interest in the Zig Inge Group (ZIG). However Mr Inge and his son Peter remain joint managing directors
and retain day-to-day management of the company. His association with Bristile Roofing and its sister company Austral Bricks goes back to the days of Inge Bros, well known in the 1970s as quality home builders. Not only has Zig Inge consistently used their products, he all but exclusively specifies premiumquality terracotta roof tiles and pressed bricks in his retirement villages.
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“THERE WERE FIVE OR SIX DIFFERENT TRADES WORKING ON THE JOB. BUT NO ONE WAS WORKING UNSAFE, SO WE DIDN’T HOLD UP ANY OTHER TRADES. WE WORKED BEHIND THE FRAMERS, AND AHEAD OF THE PLASTERERS SO EVERYONE WAS HAPPY.” -TONY COLLINS, SERVICE REPRESENTATIVE, BRISTILE ROOFING.
The low maintenance requirements of these roof tiles and bricks (they don’t come any lower) and consequent reduced ongoing costs are part of the reason for their selection. “This is important in amenities for the elderly, to help keep down body corporate fees,” says Narcisse Toniolo, the group’s construction director. “That has long been Mr Inge’s doctrine on what he requires in a village.” Zig’s latest project, Hunter’s Green at Cranbourne on Melbourne’s eastern fringe, exemplifies these values. The residential development boom has made sourcing appropriate sites more difficult, prompting the Zig Inge Group to enter into an arrangement with the Dennis Family Corporation. This village is their first joint
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venture, located on the Dennis Family’s Hunt Club Estate. When fully developed, it will comprise 200 independent living units – all two bedroom, some with a study – grouped around a large community centre. The units are paired, and built on a single level, as is the community centre. Like most such projects the greatest challenge is to masterplan the site to ensure maximum utilisation, while retaining privacy, individual appeal and Five Star energy efficiency. Their construction is conventional brick veneer on a slab. The Zig Inge Group usually specifies unglazed terracotta tiles and Hunters Green was no exception. “We have used gloss finishes but we believe the unglazed tiles look more natural,” explains Narcisse
Toniolo. The profile chosen throughout was a classic Marseilles. The 1200 square metre community centre uses the same pressed bricks and unglazed terracotta roof tiles as the first stage units, and shares their brick veneer construction and low set design. The centre comprises a dining room and associated commercial kitchen, hairdressing salon, wellness centre, lounge room, billiards room, bar, hobbies room, aerobics room, relief staff quarters and an eight metre pool. The building is founded on five slabs, progressively poured and key joined. The pool area was the last to be completed, largely due to the raked ceilings and large spans. “Some of the trusses over the pool are over 22 metres long!” says the building supervisor, Richard Wilkes. “They had to
“HAVING IS ONE THING BUT HAVINGROOFING. THE SERVICE TO MATCH “WE HAVEGREAT HAD APRODUCT LONG ASSOCIATION WITH BRISTILE DO THEY LOOK IS ALSO VERY PROVED TO HAD BE RELIABLE THROUGHOUT AFTERIMPORTANT. US? IN ALL BRISTILE HONESTY ROOFING THEY DO,HAVE WE HAVE NEVER ANY ISSUES.” THE ENTIRE PROCESS, FROM QUOTE TO ACCEPTANCE, SUPPLY AND INSTALLATION” -NARCISSE TONIOLO, CONSTRUCTION DIRECTOR, ZIG INGE GROUP.
MARK HENESEY-SMITH - EXECUTIVE GENERAL MANAGER, AVJENNINGS
RICHARD WILKES BUILDING SUPERVISOR, ZIG INGE GROUP
remove signs at the roundabouts to allow through the extended semi-trailers.” The tiling of the community centre was carried out by a team of four Bristile Roofing contractors. The massive roof of the community centre was a challenge of scale and scheduling. Each of the five slabs was framed, trussed and tiled progressively before plasterers, electricians and bricklayers moved in. The only exception to this was the portico which was tiled after the bricklayers completed their work. “At any stage there were five or six different trades working on the job,” says Tony Collins, Bristile Roofing’s service representative who oversaw the tiling. “But no one was working unsafe or under the roof tiling, so we didn’t hold up any other trades. We worked behind
the framers, and ahead of the plasterers so everyone was happy. Rick Wilkes organised it really well.”
span over the pool was the last to be tiled. To reduce the risk of a fall injury, the pool was covered in plywood sheets.
The tiling over the verandah was fully sarked, and the lower reaches of the roofing were sheeted with Sisalation. The complex roof form involved a number of changes of pitch. The tiles over the pool area were fastened with galvanised nails.
“It came up really well, nice and straight,” Richard Wilkes comments. “We never have too many problems and Bristile Roofing’s quality control is really good. Their subbies do the job, they have supervisors checking on it, but then they have another guy who does an audit on the roof. They’ve been really good out here like that.”
To ensure a good blend of colours the tilers worked from three open packs, picking progressively across before stacking the tiles on the elevator. This is a standard blending procedure but more critical because of the natural fired ceramic finish of the unglazed product.
“We have had a long association with Bristile Roofing,” says Narcisse Toniolo. “Do they look after us? In all honesty they do, we have never had any issues.”
The roofing perimeter was fully handrailed, an increasing common safety practice. The roof
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PROJECT INFORMATION NAME OF DEVELOPMENT TOTAL ROOF AREA NUMBER OF BUILDINGS STREET ADDRESS SUBURB PROJECT COMPLETION DATE
Hunters Green Retirement Village 1,802 m2 Community centre, 200 independent living units Hunt Club Estate, Narre Warren-Cranbourne Road Cranbourne VIC February 2007 (community centre)
PRODUCT INFORMATION TILE / BLEND COLOUR PROFILE RIDGE TYPE
Natural Blend Marseilles Range Standard Ridge
BUILDER INFORMATION BUILDER NAME BUILDER CONTACT CONTACT PHONE POSTAL ADDRESS SUBURB POST CODE
Zig Inge Group Narcisse Toniolo 03 9817 1411 Box 395 MDC Deepdene 3103
DESIGNER INFORMATION DESIGNER NAME DESIGNER CONTACT PHONE POSTAL ADDRESS SUBURB POST CODE
Clive Fredman & John Malina Architects John Malina 03 9523 7611 3/115 Hawthorn Road Caulfield North 3161
DESIGN & INSTALLATION CONSIDERATIONS • Durability • Low ongoing maintenance requirements • Long-term colour fastness • Familiar residential design themes • Ability to progressively schedule roofing and work with other trades • Safe working practices • Quality of laying and straightness of ridges over extended roof line of community centre • Blending of tiles • Tiling large span over pool area
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Bristile Roofing TECHNICAL MANUAL
VAN BAAK BALINESE RESIDENCE
THE VAN BAAK BAAK RESIDENCE RESIDENCEDEMONSTRATES DEMONSTRATESAACLEAR CLEARDEVIATION DEVIATION TRADITIONAL HOUSE HOUSEDESIGN DESIGNTHROUGH THROUGHBALINESE BALINESESTYLED STYLED FROM TRADITIONAL ARCHITECTUREAND ANDTHE THEUSE USEOFOFAAMIXTURE MIXTUREOFOFCREATIVE CREATIVE BUILDING ARCHITECTURE BUILDING MATERIALS AND AND DESIGN DESIGNFEATURES. FEATURES. In the midst of Windarooâ&#x20AC;&#x2122;s suburban landscape the Van Baak residence demonstrates a clear deviation from traditional house design through Balinese styled architecture and a mixture of creative building materials and design features.
The planning process for the home started 12 months before construction began, and the time spent in planning has resulted in a
breathtaking home that captivates passersby and golfers on the Windaroo Golf Club greens, which the residence backs onto. Henri and Mandy Van Baak carefully planned each detail of the home and were inspired by architecture and design elements observed while traveling in South East Asia and most notably, Bali.
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“WE WANTED TO CREATE A HOME THAT WOULD MAKE YOU FEEL AS THOUGH YOU’D LEFT THE TROUBLES OF THE DAY BEHIND YOU, SOMEWHERE RELAXING, PRIVATE AND UNIQUE” - HENRI VAN BAAK, VAN BAAK CONSTRUCTIONS.
The mixture of influences can be seen in the use of Thai style wooden wall cladding, Balinese volcanic brick and western interior elements which are seamlessly blended to give the home its unique character. The house wraps around a lake at the rear of the property with a series of balconies, used to maximise lakeside views. A combination of stunning views, pavilion style layout and open plan design gives the Van Baak property a relaxing “resort style” feel. As Mr Van Baak explains “We wanted to create a home that would make you feel as though you’d left the troubles of the day behind you, somewhere relaxing, private and unique” and that’s exactly what has been achieved.
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Bristile Roofing TECHNICAL MANUAL
The property features multiple living areas, two kitchens and five bedrooms - four of which overlook the lake. The home also serves as the headquarters for Van Baak Constructions and as such, a large office area and meeting room (with separate kitchenette) are also included. These areas have been kept to the left side of the property to ensure the business operations don’t interfere with the running of the home. In Mr Van Baak’s words “We have learned from our previous home the challenges that operating a business from home can create, especially in getting in the way of time with the family. Our new home is designed to
ensure that whether I’m working or with the family, one won’t interfere with the other”. An existing stormwater easement, highly reactive soil and large amounts of fill, created an engineering challenge. To overcome this challenge, the home has been divided into ‘’pavilions’’ linked with large glass suspended corridors featuring views of the gardens, fish ponds and lake. The main living areas (kitchen, games room, living room, media room) and the outdoor entertaining area are in close proximity to one another and designed so that one leads fluidly to the other. In each area, unique materials and subtle design features such as rock carvings
“HAVING GREAT FOR PRODUCT IS ONE THING BUT HAVING THE SERVICE TO MATCH “THE REASONS CHOOSING BRISTILE ROOFING TERRACOTTA ROOF TILES IS ALSO VERY IMPORTANT. ROOFING HAVE PROVED TO BE RELIABLE THROUGHOUT (NATURAL BLEND, BRISTILE SUNSET AND RUSTIC) WERE SIMPLE, THEY ARE EXTREMELY THE PROCESS, FROM QUOTE TO ACCEPTANCE, AND INSTALLATION” LOWENTIRE MAINTENANCE, DURABLE WITH AESTHETIC CHARMSUPPLY AND VIBRANT COLOUR.” MARK HENESEY-SMITH - EXECUTIVE GENERAL MANAGER, AVJENNINGS
- HENRI VAN BAAK, VAN BAAK CONSTRUCTIONS.
HENRI VAN BAAK - PROPERTY OWNER AND OWNER OF HENRI VAN BAAK CONSTUCTIONS
and bamboo shaped balustrades, create an understated yet eye catching interior which complements the exterior styling and claddings. The bedrooms have been located upstairs for privacy, with the exception of the master bedroom which is in a separate pavilion with an open planned corridor and features a luxurious bathroom and private balcony. Similarly, the visitor’s bedroom, which leads off the meeting room on the opposite side of the house, has its own private balcony and walk in wardrobe/bathroom. From the street, a large rock carving on the feature wall and a number of statues grab attention, while the vibrant red roof
constructed from Bristile Roofing™ “Swiss” terracotta tiles, contrasts with more muted colours used on the lower levels. The Van Baak’s had noticed that terracotta was used extensively on beachside hotels and residences in Bali, so when they decided to create a Balinese look for their home, terracotta tiles were the natural choice. Bristile Roofing™ terracotta roof tiles were chosen for their unique colour and “burn marked” finish which the Van Baak’s felt had a more authentic Balinese appearance. The tile colours selected (“Natural Blend”, “Sunset” and “Rustic”) blend together beautifully and complement the bright
greens and yellows of the tropical garden. According to Mr Van Baak, the reasons for choosing terracotta were simple, it’s extremely low maintenance, durable with aesthetic charm and vibrant colour. The garden showcases many outdoor rock sculptures and carvings imported directly from Bali, including a “Henri Van Baak Constructions” logo. A small sign near the entrance reads “Puri Danu” or “Palace on the Lake”, a fitting name for an impressive home. Bristile Roofing™ would like to congratulate Van Baak Constructions and the Van Baak family on what is truly a unique and inspiring home.
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PROJECT INFORMATION NAME OF DEVELOPMENT TOTAL ROOF AREA NUMBER OF BUILDINGS TYPE OF DEVELOPMENT SUBURB PROJECT COMPLETION DATE
Van Baak Balinese Residence 1,000 m2 1 Residential Development Windaroo November 2007
PRODUCT INFORMATION TILE / BLEND COLOUR PROFILE FITTING TYPE
Natural/Sunset/Coral Swiss Roman
BUILDER INFORMATION BUILDER NAME BUILDER CONTACT CONTACT PHONE POSTAL ADDRESS SUBURB POST CODE
Henri Van Baak Constructions Henri Van Baak 0418 752 786 PO Box 501 Beenleigh 4207
DESIGNER INFORMATION DESIGNER NAME DESIGNER CONTACT
M. D. Velasco Design & Drafting Services Delores Velasco
DESIGN CONSIDERATIONS To create an authentic Balinese theme and fully utilise the waterfront setting. Use of mixed materials, open planned layout and creative design features to create a relaxing resort feel. Needed to overcome the inability to lay solid foundations on certain parts of the land due to an existing stormwater easement, highly reactive soil and large amounts of fill.
INSTALLATION CONSIDERATIONS Quality and reliable installation by professional contractors, at a competitive price.
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Bristile Roofing TECHNICAL MANUAL