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Roofing & Cladding
www.metalline.co.uk
roofing & cladding Welsh Slate heads up Sarah Beeny’s new home
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Roofing slates by Welsh Slate star in presenter’s new TV programme.
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oofing slates by Welsh Slate were the material of choice for TV property expert Sarah Beeny’s own home-inthe-making which is the star of the Channel 4 series “Sarah Beeny’s new life in the country”.
The “Homes on 4” series follows Sarah and her family (husband and four sons aged 11 to 17 years) as they swap London life for a new start on a 220acre, semi-derelict former dairy farm in Somerset, where they are building a modern and sustainable stately home of their dreams.
Episode 8 of the first series shows the family visiting the Welsh Slate quarry where the Penrhyn Heather Blue slates are produced that are then shown being laid on the 15m x 16m mainly mansard roof of the three-storey, sevenbedroomed mock stately home.
Sarah even has a go at splitting the premium slates herself, remarking that it was “seriously impressive” that every one of the slates used on the house was split by hand.
Welsh Slate commercial director Michael Hallé explained on the programme how the quarry once employed 3,000 people and still produces three million slates per year.
Also, that maximising yield is very important and not only do they make roofing slates but also walling, paving, decorative aggregates and landscape products. Roofing contractor Geoff Spinks of G&L Roofing agreed with Sarah that the slates were “a joy to fit” due to their flatness. He described the Penrhyn Heather Blues as “really, really nice slates” that were “lovely to lay”. They also feature as vertical cladding on some elements of the steeply pitched mansard roof.
The scaffolding came down some seven months after work started on site, with Sarah exclaiming the newly revealed limestone-clad house, now waterproof in readiness for the winter, was a “thing of beauty”.
Welsh Slate is also expected to feature in the second (commissioned) and third (to be confirmed) series of the show. In the second, scants (large slabs) of slate will be used as landscaping around the pond, and in the third, on a patio in the walled garden to the main house which was designed by husband Graham (Swift).
Michael Hallé said: “Not only do we feel privileged that Sarah recognised that our slate is ‘the best slate you could possibly have’ but also that she was genuinely enthused at how the slates are produced.”
The focus on sustainability has included the use of ICF (Insulated Concrete Forms) for the building’s shell, recycled plastic windows, water from a bore hole, and a modern wastewater plant which returns cleansed wastewater to the land.
West Fraser product application: Roofing (OSB)
Getting buildings wind and watertight is a priority on any construction site so choosing a quick, easy to install, reliable and versatile roofing system is vital. High quality roof decking or pitched roof sarking is an essential component and Oriented Strand Board (OSB) is now the preferred option for many. Unsurprisingly, given the product’s outstanding attributes, West Fraser’s SterlingOSB Zero OSB3 or SterlingOSB Zero T&G is frequently the first choice.
Ideal for structural use in load bearing dry or humid conditions, SterlingOSB Zero OSB3 offers great value and durability. Stronger than most softwood ply, thanks to its makeup of multiple layers of real wood strands pressed together, it is designed to withstand the toughest of conditions. Working with the boards is trouble free as they are uniform in quality with no knots, voids or delamination issues. Helping to cut waste, a range of panel sizes and thicknesses is available to suit all needs.
The boards are square-edged so butt together easily and cleanly. Panels are cut and installed on a roof using conventional roofing equipment and are easy to saw, drill, nail or plane. Nails can be driven as close as 8mm from the panel edge without causing splitting. SterlingOSB Zero’s smooth surface gives improved adhesion qualities for all flat roofing applications and no sanding is required, even for GRP finishes.
With all the advantages of the Sterling OSB Zero range, SterlingOSB Zero T&G is specifically designed for flat roofing and is BBA approved and fully compliant to BS 6229:2003. The panels are consistent and machined to exact tolerances. Reliable fixings are easily achieved across the board using 3mm diameter ring-shank nails or 50mm long screws at 100mm centres across the supporting joists. The tongue and groove profile helps increase the lifespan of the roof by reducing movement of the boards which could damage surface coverings.
Timber is a highly sustainable building product and, with the Sterling OSB Zero range, there is the added reassurance that the product’s environmental credentials are further enhanced. The panels are net carbon negative, responsibly sourced and FSC certified. They are manufactured in the UK from locally grown timber, cutting embodied carbon from transportation. In addition, all West Fraser mills have obtained the coveted environmental ISO 14001 accreditation. The Sterling OSB Zero range is also the first OSB product to be made in the UK with zero added formaldehyde, so it is an even ‘greener’ board that meets all standards with ease.
Samples of SterlingOSB Zero, and West Fraser’s other construction panels, can be ordered on the website uk.westfraser.com. Head to the housebuilder page on the website to download a selection of tools including a fully-interactive guide to all West Fraser products and a checklist to make sure you have everything you need for your build.
For further information, call 01786 812 921 or visit uk.westfraser.com
Envirotile is a revolutionary roof tile system with a unique fixing system which is fully compliant with BS 5534 and it can be installed to a minimum of 12.5° pitch.
It is significantly lighter than other tiles making Envirotile extremely suitable for use on modular and timber frame constructions. The lightweight tile aids the build by minimalising differential movement in such structures.
Plus, due to the unique fitting system developed by roofers, installation is simple and easy, saving time compared to traditional tiles, and offers a complete dry fix system with no mess cutting.
The sustainable choice Finishes
Envirotile is available in two finish effect options - our original tile with a textured finish and our latest addition of the slate-effect finish — both are aesthetically pleasing in all aspects.
The textured finish tile is available in Terracotta, Brown, Slate Grey and Anthracite Black, and the slate-effect tile in Terracotta, Brown, Slate Grey and Anthracite Grey.
Plus ridge, hip and end caps all available to ensure the roof is completed to the same green credentials.
Envirotile is manufactured from 75% recycled product and is fully recyclable at end of life.
It is backed by GreenSpec which is the foremost ‘Green Building’ resource in the UK. Independent of companies and trade bodies and launched in 2003 with government funding, GreenSpec promotes sustainable building products, materials and construction techniques.
MADE & RECYCLED IN THE UK
The main material comes from recycled car bumpers
Designed to perform
Envirotile has undertaken rigorous testing with many professional bodies so that we can ensure that it is more than fit-for-purpose and will withstand all the British weather will throw at it. So much so that we guarantee it for 40 years.
They are also fully guaranteed to perform against severe UK wind loads in any designated zonal area within the UK and we offer a free replacement service for dislodged roof tiles caused by gale force winds up to 65mph (subject to our Terms & Conditions).
• Cost saving, sustainable roof tile • BBA certified • Conforms to BS 5534:2014 • Greenspec Endorsed • 80% lighter than concrete tiles for easier handling and safety • Only 12 tiles per sq. m • Choice of standard and slate effect across 5 colours to match most roof types • No harmful dust created during the cutting process • Proven and tested at a low degree pitch of 12.5° against wind driven rain
• Weather tested to 147mph wind loads • Improved grip surface • Virtually unbreakable • Anti-fungal properties • Low maintenance
• UK manufactured
• Ridge products available
At less than 8 kilos per m², Envirotile is the lightest synthetic roof tile making it the ultimate choice within lightweight roofing, yet is virtually unbreakable.
FOR MORE INFORMATION, PLEASE VISIT WWW.EUROCELL.CO.UK/ENVIROTILE
Case Study: Structural Waterproofing - Private Residence
Overview
Delta Registered Installers, Arti Structural Waterproofing Ltd offered an effective, fast installation and maintainable, Type C waterproofing solution to a private dwelling on time and on budget!
The Scope of the project was to provide a structural waterproofing solution to a private dwelling with new build extension.
The property, situated on a sloping site gave the opportunity for the waterproof design to utilise the properties environment to allow for natural discharge of any potential water ingress.
The property was detached and retaining to the front and side elevations where the retaining ground slopes down and away from the property to a garden that continues to slope down to a small stream. The retaining walls on either elevation rise at their highest point to approximately 1500mm above the internal floor level.
The internal walls of the property were original brick to the front and new cavity built concrete block. The floor to what was the original house is of solid concrete construction joining on to a newer block and beam floor construction.
When designing the most appropriate waterproofing system to any given situation, various design factors •44•
require addressing such as (but not limited to), final use of the building, the grade of waterproofing requirement under the British Standard, structural considerations based on the form of construction and in some cases, satisfying the requirements of building warranty providers.
Methodology
Pre site inspections were carried out along with consultations with the homeowners, to ensure the waterproofing design not only meets BS 8102:2009 (Code of practice for protection of below ground structures against water from the ground) but also client expectations. The client sought to have a hands-on approach to the design which was warmly welcomed.
Arti’s CSSW qualified surveyor and Delta’s Technical Team discussed design approached along with the correct height to waterproof, to ensure BS81022009 requirements were met and the structure would be always kept dry (to Grade 3 habitable).
The site was sloping, so to achieve a level floor the new build extension had to be recessed into the slope which made the structure part retaining. Therefore, only part of the new build required protection for water ingress. WDS, CSSW and CSRT qualified Stuart Tansey worked with Delta’s Technical Team to create specification suitable for this unique new build.
There were no geology reports or soil analysis, therefore the recommendations and resultant specification were based upon a high-risk assessment during the pre-site visit. Slight moisture ingress had been noted within the newly formed stairwell area, but the area had no recorded history of flooding.
Arti put together a cost effective and compliant cavity membrane solution that utilised natural drainage to manage any potential water ingress.
This project is only part retaining as it is situated on a sloping site with an external ground level barely one metre tall at its highest point. Installing a waterproof membrane floor to ceiling was simply not required as water will never reach the highest points of the structure.
Preceding the installation of the Type C Cavity Drainage System, Arti ensured the waterproofing design would easily be maintainable and repairable.
System Components
System Components should focus on:
Delta Products (in bullet form)
• MS500 • Delta Quikseal Plugs • Delta Cornerstrip • Delta Yellow Channel • Delta Inspection/Jetting Ports • Delta PT Lath • Delta PT plugs
Case Study Results
Completed in just three days and on budget. The homeowners were delighted and contacted Delta to give feedback:
“I just wanted to inform you that from initial meeting with Stuart Tansey on site, to completion of the project, the whole process was conducted promptly and with complete professionalism. This service was complemented by the managing director Mr Lucian Ardeleanu become personally involved providing his assistance and expert input with additional work I wanted carried out.
I would not hesitate to use their services again and would recommend Arti Waterproofing in future.”
By not using specialist contractors, the project could have been over specified and waterproofed in areas that did not require waterproofing.
