Design & Construction June - July 2015 // Issue: 20 // Price: R40,00 incl. ISSN 2226-7883
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CONTENTS
CONTENTS 16
8
ED'S NOTE
10
CONTRIBUTORS
12
CASE STUDY - HOUT BAY HOUSE
16
COMPOSITE DECKING - A GOOD COMPOSITION
24
DECKING - QUALITY FASTENING UNDERFOOT
28
SAWMILLING - STRUCTURAL TIMBER
32
CASE STUDY - EMAAR HEADQUARTERS
38
COVER STORY - ALLWOOD TECHNOLOGY TURNS 15
42
WINDOWS & DOORS - ENERGY EFFICIENCY CONTINUED ON PAGE: 7
28
32 // APRIL / MAY 2015
5
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CONTENTS
52
54
46
WOODWORKING MACHINERY - GEERLINGS & SCM
50
TOOLS & EQUIPMENT - MAKITA
52
VINYL PLANK FLOORING - TIMBER ALTERNATIVE
54
TIMBER FRAME BUILDING - A GREENER FUTURE
56
WOODWORKING MACHINERY - CMC GROUP
60
TIMBER PROFILE - RHODESIAN TEAK
64
GREEN INITIATIVES - GREENPOP
66
TIMBER ROOFING - INDUSTRY INSIGHT
68
EVENTS - WOODEX FOR AFRICA
70
EQUIPMENT - HEAVY MACHINERY
72
TIMBER TREATMENT - ARCH
66
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// APRIL / MAY 2015
7
ED'S NOTE
In the mix While Timber iQ is a proudly South African publication, we find it informative and refreshing to look outward to see what the rest of the world is doing with timber. Now more than ever, 'cross-pollination' is taking place in this vast and complex industry and, for me, this issue really underpins that fact.
O
n page 12 we showcase the new Hout Bay House, a follow-on project from the same people who brought House Pinotage to life – HWZ International. This house and its performance will form the basis of a unique case study that brings together European and South African expertise in the quest to explore and pinpoint optimal features of timber construction for the South African climate. The research will touch on important contributors to improved energy efficiency, like thermal insulation and the use of the air gap, among others, and the house will be inhabited while data on its performance is gathered. We like data, and we love the very real stories it can weave. So, we look forward to reporting back on the performance of the Hout Bay House in future editions of Timber iQ. We also take a look at a different kind of cross-pollination represented by composite wood. Having advanced and improved dramatically over the past few years, composite decking is a unique mix of wood and polymer, or plastic.
It boasts a number of great qualities and benefits and occupies a worthy place as a timber alternative in the market. Read more about composite decking on page 16. Then, we showcase the Dubai headquarters of one of the world’s largest property developers, Emaar, whose new premises are elegantly dressed in American White Oak. This updated, intelligent look accurately represents the modern, yet established brand, and also offers a wonderfully functional – and inspiring – workplace. Collaboration, diversity and change are all essential for progress, and we are delighted to bring to you some incredible products and projects that by their very design and function, occupy this realm of progress. And naturally, timber is in the mix. Enjoy the read! Jen
UPCOMING EVENTS COATINGS FOR AFRICA SYMPOSIUM & EXPO 11-13 MAY 2015, SANDTON CONVENTION CENTRE, JOHANNESBURG View www.coatingsforafrica.org.za for more info
LIGNA 11-15 MAY 2015, HANNOVER EXHIBITION GROUNDS, HANNOVER View www.ligna.de for more info
AFRICAN CONSTRUCTION EXPO 13-14 MAY 2015, SANDTON CONVENTION CENTRE, JOHANNESBURG View www.construction-week.com for more info
GET IN TOUCH 8
APRIL / MAY 2015 //
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CONTRIBUTORS
CONTRIBUTORS STEPHANIE DYER Stephanie Dyer’s love for, and interest in wood, led to a career in wood science, working at the South African Forestry Research Institute and the CSIR, where she was involved in research on wood properties of indigenous and introduced species. She also provided a wood identification service at these institutes and, since relocating to Hilton, KwaZulu-Natal in 1998, she has continued with the service. Stephanie lectured part-time at Pretoria Technikon for the National diploma in Timber Technology and, more recently, on Forest Products and Processing at the University of KwaZulu-Natal, Pietermaritzburg. Stephanie holds an MSc in Plant Anatomy and is a Professional Natural Scientist.
WARREN GRAVER As a youngster, Warren Graver’s fascination with nature and the environment almost led to him becoming a weatherman, but he eventually chose a very different career path. He describes his decade-long involvement with the company Envirodeck as a “fantastic journey” that gave him invaluable experience in the composite decking industry and resulted in the wonderful achievements of starting a business and winning Small Business Entrepreneur for 2012. Now the Managing Director of MoistureShield for Africa, specialist suppliers of composite decking across the continent, he continues to pursue sound business opportunities – but with his passion for nature intact. Graver describes one of his goals as living in an open-plan house with his loved ones somewhere in the African bushveld, surrounded by wildlife and spectacular views, blended into the environment. Although composite decking is his main area of expertise, he admits to enjoying a few rounds of golf on occasion.
KLÁRA POPOVOVÁ Following a long family tradition in the timber industry in the Czech Republic and Middle Europe, Klára is involved in a family-owned timber merchant company, works as a marketing specialist for HWZ International SA and also supports the organizational team of the Wood Conference in Cape Town. Using her working experience in the educational sphere and intercultural projects, Klára is co-ordinating the Hout Bay House research project, focusing on the energy-efficiency of timber buildings and how they are well suited for South African climatic conditions. She is very proud to have a wonderful team of Czech and South African PhD students assisting with this project.
WERNER SLABBERT After a very successful career as a broadcast engineer at the SABC, Werner changed direction after his personal holiday home fell into the hands of an unscrupulous timber frame builder. This prompted him to try his hand at timber construction, igniting his passion for timber frame building, and marking the start of his sucessful journey into the industry. Werner joined the Institute of Timber Frame Builders (ITFB) in 2006, served as the chairman of the Gauteng Regional Committee for a number of years and was elected ITFB President in 2012, serving in this capacity until 2014, when the Institute merged with the Institute for Timber Construction (ITC-SA). He serves as the chairman of the SANS 10-082 advisory committee within the SABS technical committee, is a director on the board of the ITC-SA , and presents lectures to architectural students at Wits University, bank valuators and insurance assessors.
FRED WAGENAAR Fred is the Executive Officer of the ITC-SA and has been involved in the construction industry for the past 34 years. He is passionate about the built environment and is committed to promoting excellence in design, workmanship and material in the roofing industry. Fred is a proponent of drinking red wine, is unable to resist the calling of the open road, and loves chasing the sunset on his Harley.
10
APRIL / MAY 2015 //
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DISCLAIMER The views expressed herein are not necessarily those of Trademax Publications. Although we have done our best to ensure the accuracy of our content, neither Trademax Publications nor Timber iQ magazine will be held liable for any views expressed or information disseminated, in editorial content or advertisements, in this issue.
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CASE STUDY
Introducing Hout Bay House A research project about a unique type of timber construction in South Africa Article by Klรกra Popovovรก
12
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CASE STUDY
The project is a unique combination of expertise, use of ecological materials and modern processing methods, steered by a team consisting of seasoned experts and young researchers. We are especially proud of our young research team of PhD students, including Eliska Oberhofnerova and Regina Oralkova from the Czech University of Life Sciences in the Czech Republic, as well as Phillip Crafford and Melanie Blumentritt both from the Department of Forestry and Wood Science at Stellenbosch University. Eliska has experience with designing houses in extreme climatic conditions and currently focuses on the topic of degradation of wooden materials, while Regina focuses on designing experimental buildings and specialised furniture, with the aim of broadening the contemporary possibilities in housing. Her PhD research focuses on energy solutions for timber houses and the optimisation of construction processes. Phillip and Melanie focus on green building with wood as a construction material.
WHY DID WE START THE HOUT BAY HOUSE PROJECT? The aim of the project is to find an optimal form of timber construction suitable for the specific climatic conditions in South Africa, to define the ideal thickness of thermal insulation for this setting, and to evaluate the benefits of using the air gap. Such data can be used in the process of house building and to develop the use of timber construction in the area. Our aim is to build an ecological family house in Hout Bay, which will be then tested for several years with people living in the house.
E
nergy efficient housing and construction have become very topical in South Africa, not only because of the growing prices of heating, but mainly because of the increasing ecological awareness of many South Africans who want to live in a modern, but, at the same time, sustainable way.
Hout Bay House was designed by the academic architect, Michal Dostal in co-operation with timber construction experts, in order to suit a specific locality. The research will be carried out in co-operation with the Research and Development Institute for Wood Processing (VVUD) in Prague.
This trend is the starting point of a unique research project through which a team of PhD students from Europe and South Africa will attempt to build an ideal timber home to suit South African climatic conditions.
// APRIL / MAY 2015
13
CASE STUDY
Using wood in all its forms: Hout Bay House will be constructed using Novaspruce cross-laminated timber, wood panels, insulation, floors, frontages, Fermacell gypsum fibre board and many other materials and techniques.
LESSONS LEARNED FROM PREVIOUS EXPERIENCE
HOW WILL THE HOUT BAY HOUSE BE CONSTRUCTED?
First and foremost, we draw on our experience from already having built a wooden house, House Pinotage, in the Cape Town area. What we know from House Pinotage is that during the year, the house showed a high level of thermal comfort, with a pleasant ambient environment without any need for heating or air-conditioning. The design of the house was executed according to European standards, which means that the insulation may have been over-specified for the conditions in South Africa and therefore unnecessarily costly.
The composition of the house is diffusely open, which allows the building to conduct away humidity. By employing insulation materials with a low level of diffusion resistance, we achieve a diffusely open shell for the house, and we do not have to use vapour barriers.
Using this information, we intend to make the Hout Bay Project suitable for the specific climatic conditions in South Africa. This project will allow us to test the wall composition with different thicknesses of thermal insulation and other possibilities with ventilated gaps. The evaluation of data we gain in this way will help us to find out what an ideal South African wooden building should be like.
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Novatop consists of cross-laminated timber (CLT) panels (84mm), which are produced in the Czech Republic and used in the supporting frame. CLT is made up of dried coniferous lamellas arranged in an odd number of layers. Each layer is turned 90째 in relation to the next one, which guarantees stability of shape in spite of changes in humidity. CLT panels create a pleasant microclimate, which has beneficial effects on human health. For processing the wooden components, we use the most advanced CNC equipment. The most important advantage of this system is the simple execution of construction details, minimal number of assembling joints, simple composition of walls, resistance to fire, construction speed (several days) and, because of its aesthetic appeal, the possibility of showcasing the timber as part of the interior.
CASE STUDY
Alongside CLT panels, modern Pavatex ecological wood-fibre insulation is used. Thanks to its features, it is a great solution for thermal stability and soundproofing of wood constructions. It insulates the structure against outside temperatures and moderates the microclimate in the house, keeping the interior climate agreeable, even during winter.
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In summer, on the other hand, it cools the building down in a natural, ecological and economical manner. The air gap also helps to achieve this. One part of the project focuses on the use of the air gap in the construction in such a way that it would, in the most advantageous way, air the overheated composition and conduct away humidity from the construction. We also incorporate windows with a new type of glazing (insulated double glass) into the perimeter shell of the building, which will contribute to the protection of the building from the changes in the temperature outside. The whole building will be tested for several years. The purpose of the house is to test different types of insulation, varying in thickness, and the possibilities of using the air gap, with the focus on economical use of material in construction in the given locality.
HOW WILL WE OBTAIN THE DATA? The aim of the project is to evaluate the influence of the composition of the building’s thermal and humidity transmission in order to maintain a high level of comfort for the inhabitants. During the research, special sensors will be placed in the house to measure temperature and humidity in the external wall. Data will be gathered which will tell us about the thermal technical features of the walls we designed (temperature falls and humidity curves). We will measure the heat-transmission coefficient in the perimeter construction, its surface temperature and humidity. The results will allow us to test the suitability of the construction. Data, which will be obtained while the house is occupied, will be downloaded through an ethernet cable, gathered in an electronic database, and assessed.
For more information, contact Klára Popovová at klara@holz.cz.
HWZ International SA Pty (Ltd.)
capetown@hwzinternational.com
gareth.hare@ifatimber.co.za
+27764019120
+2784 459 7788
www.novaspruce.co.za Follow us on Facebook to get regular updates about new timber solutions and interesting projects!
// APRIL / MAY 2015
15
COMPOSITE DECKING
Images courtesy of Warren Graver - MoistureShield Africa
A good composition When a consumer or proprietor is thinking of installing a deck or replacing an old one, one of the first steps in their planning process will be to research and compare the best-suited building material for the particular project. It's no surprise that they're going to look at costs, availability, ease of installation, maintenance, aesthetics, etc. What may be an eye opener is the considerable range of alternative options available --all competing against traditional timber choices. So, will that deck be built with wood or composite? Article compiled by: Staff writer CelĂŠste Perrin With input and content oversight from Warren Graver, Managing Director of MoistureShield Africa
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COMPOSITE DECKING
T
he dictionary explains that a ‘composite’ is something ‘made up of several or various parts, elements or materials.’ Wikipedia goes further: “Composite materials (also called composition materials or shortened to composites) are materials made from two or more constituent materials with significantly different physical or chemical properties that, when combined, produce a material with characteristics different from the individual components. The individual components remain separate and distinct within the finished structure. The new material may be preferred for many reasons: common examples include materials which are stronger, lighter or less expensive when compared to traditional materials.” But what does this mean when we’re talking about a deck – what exactly will a composite deck consist of?
THE COMPOSITION OF A COMPOSITE As with any new technology or innovation that has had some time to come into its own, composite decking has evolved significantly from its basic beginnings. Some composite materials are monochromatic and others multichromatic, but many purposely mimic the look of natural wood grains and popular exotic hardwood timbers — arguably spurred by the ‘competition’ with wood, which is widely regarded as natural and uncompromisingly beautiful. From USA-based composite decking manufacturer Fiberon: “Advances in composite technology have yielded products that so closely resemble wood, you
may not be able to tell the difference until you step on one barefoot – you’ll find the composite smooth and splinterfree!” Typically, a blend of wood and polymer, or plastic, is used to manufacture wood composites. The most common polymers used are Polypropylene (or Polypropene, shortened to PP), Polyethylene (or Polythene, shortened to PE), high-density Polyethylene (HDPE), and Polyvinyl chloride (PVC), which is by itself a popular and common building material. The ratio of wood to polymer is important, and an improper balance could result in a soft or brittle end product. Furthermore, the polymer component augments the wood fibre capability to resist water absorption; the higher the ratio of polymer in the blend, the better the ‘coating’ and ability to withstand weathering factors. Both hollow profiles and solid profiles are still available, but the market has seen a definite decline in imports of hollow high-density Polyethylene offerings over the years, most likely because of poor performance under the harsh African climate. • Hollow profile: Looks more ‘man-made,’ is lighter, more susceptible to damage prior to installation. • Solid profile: Looks more like wood, is heavier and stronger, has a solid track record in this market.
// APRIL / MAY 2015
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COMPOSITE DECKING
LOCAL VERSUS IMPORT The local composite decking trade is not without challenges. A number of South African manufacturers have come and gone over the years, with only one company left. Unfortunately the failure of so many local manufacturers has tarnished the reputation of this industry sector, and imports into our country have increased exponentially. Warren Graver, Managing Director of MoistureShield Africa (suppliers of composite decking products to architects, builders and specifiers locally and across Africa) sheds some light on the situation: “When producing a wood plastic composite or WPC, being a mixture of wood fibre and plastic, the two different types of material get extruded together whilst you’re trying to get them to bond. The difficulty here is that wood and plastic act like oil and water — they do not mix very well. And herein lies the production challenge. We have seen several South African manufacturers unsuccessfully attempt to get the formulation between the wood and the plastic right. This has resulted in all the imports available on the market, which carry not only an attractive look and feel, but also a solid performance and track record. Until the local manufacturing ability is on par, the industry will continue to turn to overseas manufacturers for quality and performance.”
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COMPOSITE DECKING
BASICS OF WPC MANUFACTURING As can be expected, the ingredients and details that go into specific wood-plastic composite products are closely guarded, proprietary trade secrets. But there are a few common denominators that help us understand the manufacturing process better.
1. PREPARE THE INGREDIENTS The two core ingredients are plastic (virgin PVC or polyethylene, which is any recycled plastic product) and wood (or a cellulose equivalent like wheat straws), then come additives (stabilizers, waxes, lubricants, stiffening agents, impact modifiers, blowing agents and colourants. • Heat and dry the wood flour to remove moisture • Heat the plastic to a liquid state
2. MIX THE INGREDIENTS • Mix along with additives until the plastic has covered or encapsulated the wood flour • Note: Ingredients for a top coat or capstock on WPCs are mixed separately
3. EXTRUDE THE MIXTURE • Push the heated mixture through a die with computer-cut metal plates that shape the product into the desired configuration (like deck boards, trim, etc.) • Note: Capstocks get introduced into the die near the final plates, after the core’s shape has been formed
4. CONTROL FREEFOAMING AND SIZE • Since WPCs get bigger as they leave the die, it may be necessary to immediately move the extruded product into a vacuum chamber to prevent freefoam expansion
5. COOL WHAT'S PRODUCED • To induce the required stiffness, cool the extruded product by spraying water over it as it comes down the line, with air, or with cooling wheels • Inspect • Discard any unsatisfactory output; send it to be reground and added back to the mix
6. IMPRINT, TREAT, CUT, STACK • Imprint the surface with a faux-wood finish (typically with a big wheel that contains a grain pattern that can be set to repeat or to imprint boards uniquely) • Apply additives to prevent colour fading • Inspect again • Cut to desired lengths • Stack and store before shipping out to fulfil work orders
THE MARKET OFFERS SEVERAL COMPOSITE DECKING OPTIONS THAT UTILISE RECYCLED OR RECYCLABLE MATERIALS: • 50% PVC and 50% pine dust • 50% PVC and 50% natural fibre • 60% plastic and 40% wood • 60% bamboo fibres (or waste bamboo pulp) and 30% recycled plastic • 60% recycled wood fibres, 30% recycled plastic fibres and 10% bonding agent • Other combinations of WPC materials
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COMPOSITE DECKING
“Consumers are largely informed; they are aware of the benefits of composite decking, and there are a number of options in the market available to them. The biggest hurdle to the industry is the current exchange rate and the price difference between composite decking and traditional hardwood decking. The pricing between composite decking suppliers also varies considerably. So price is definitely the biggest obstacle as a very small percentage of the overall market can afford it.� Because cost has such a big bearing on this industry, it is only reasonable to caution the end user to carefully assess
all the different supply offerings out there. Not all these products will yield the same performance. If the materials are not stable, the composite deck will be subject to the problem of unacceptable levels of expansion and contraction. It is also critical that the product be treated with a preservative and antifungal chemical. That is because, even though the wood fibres (and other cellulose if added) in the decking have been combined with plastic, it can still rot, according to reports on a publication in the American Forest Products Journal. Considering that the wood component in composite decking can exceed 60%, the absence of a preservative could be very problematic.
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// APRIL / MAY 2015
21
COMPOSITE DECKING
THE UPSIDE TO COMPOSITE DECKING Undoubtedly, composite deck installations have become more prevalent in recent years. Here are some reasons that make them a popular choice: • Vast array of finishes and UV-resistant, fade-resistant colours on offer • Minimal maintenance: Most cases require only occasional cleaning, with no oiling, painting, sealing, (re-)staining, sanding or varnishing needed • No cracking, checking, twisting, splitting, warping • Immune to weather: Moisture, rot and mould resistant • Insect resistant • Safe, non-slip, splinter-free ‘barefoot friendly’ surface finishes • Strong and extremely durable • Versatile design options: Meets GAP standards (Green Architectural Product) • Easy installation and easy to work using regular woodworking tools • 5, 10 and 15-year limited factory warranties commonly offered against defects in materials and workmanship Graver expounds on the most important consumer preferences: “Composite decking can be produced in any profile, colour and finished texture. This variety offers the consumer several design options and solutions that traditional hardwood decking can’t, allowing for unique outdoor lifestyle spaces. Consumers love the colours available to suit new trends, and they like that it’s a lowmaintenance product that requires only the occasional clean with a pressure washer. When installed properly, composite decking is hard outdone by any other product available in the industry.” Professionals in the trade have also come to embrace composite decking, as Graver explains, “South Africa is a big market for traditional hardwood timber. As recently as a decade ago, decking contractors would definitely not have promoted or have been willing to install composite products. This has changed over the last few years due to architectural requirements for different colours and profiles, and consumers’ reluctance to do constant maintenance on their traditional hardwood decks. The change in consumer mindset has forced a similar change in the construction industry, and now contractors are happy to promote or install composite decking just as they do hardwood decking. Feedback from contractors is that they find composite deck installations easier because there is no sanding or sealing required after installation. And because they can leave the site sooner, they save time and increase their productivity. Additionally, contractors have to remain competitive in the market place. To do so, they will offer their clients a variety of decking solutions and materials available and are much more willing to endorse new innovative products than a few years ago.”
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TALKING RANDS...AND SENSE It stands to reason that cost might be a significant factor when an industry is heavily reliant on imported products or materials, and the composite decking sector is no exception. If there is a major price difference between products, it may very well be that the cheaper one is of a lower quality than the more expensive option. And a low-quality composite deck will most likely not be able to withstand the elements and could disintegrate in a relatively short period of time. It makes sense to do thorough research and use a reputable specialist composite decking supplier and installer. Graver cautions that many companies advertise their products as environmentally friendly, and yet when questioned, they do not know or cannot verify which raw materials are used in the manufacturing process. It’s important to know the history of the company to see if they deliver a proven, quality product or service, and to ask about warranties. It is also a good idea to not only ask for, but then to also verify, references that can vouch for the quality of the product and/or work before investing money in a project.
BUT IT'S NOT WOOD... Although generally accepted as a sustainable timber alternative, composite wood is often referred to as 'plastic wood’ and, for some people, it simply cannot replace natural timber, regardless of the fact that a wooden deck may require more upkeep, could be subject to cracks and insect attack, or of the much wider concern with deforestation and improper forestry practices that worry the timber industry.
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COMPOSITE DECKING
Graver comments on the advancements in, and general impression of, composite wood today: “A decade ago, wood plastic materials definitely didn’t perform as they were expected to, and they looked very plastic. The products available were unsightly and difficult to install. But today, there are numerous competitors all offering a different product, which has created a much bigger industry than it was a few years ago. Changes in technology have provided better recycling on the plastics side, whilst smaller wood fibres allow for a more contemporary look on the finished product. Better recycling combined with better extrusion has created better, more refined products, and this has changed the industry dramatically.”
SO WHICH IS GREENER? In many ways, and when you consider the life cycle of composites versus timber, it can be argued that composite products will emerge as more eco-friendly. Composite production processes use less energy and water, create fewer emissions, don’t require harmful chemicals, and use recycled materials – no trees need to be felled. The final composite wood deck requires no abrasive chemical treatment and can be categorised under sustainable architecture...it will likely last for many decades with minimal environmental impact. As to the future of composite decking, the outlook is positive. “The industry is going to see continued growth as manufacturers work to create better stain-resistant surfaces and products that can handle a wider variety of applications. Even more colours and also more clip systems will continue to become available,” Graver concludes.
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WORKTOPS 30mm to 100mm Thicknesses
LAMINATED BEAMS 30 Years Manufacturing Experience. SATAS Approved S5 & S7, Grading S10
SOURCES REFERENCED: • ‘Composite material’ www.wikipedia.org/wiki/ Composite_material Accessed 13 March 2015 • ‘Composite or wood? Myth-busting facts to know before you decide on a deck’ www.dispatch.com/ content/stories/classifieds/real-estate/2014/07/ composite Accessed 14 March 2015 • ‘Wood vs. Composite’ www.fiberondecking.com Accessed between 12 and 14 March 2015 • ‘Benefits of composite’ www.eva-tech.com/en/evalast/more-about-composite.html Accessed 13 March 2015 • ‘Should I go for hollow or solid decking? What is the difference?’ www.ecowood.co.za/web/faq/ Accessed 13 March 2015 • ‘Green – composite decking’ www.home. howstuffworks.com Accessed 13 March 2015 • ‘Preferred by builders – praised by customers’ www.envirodeck.co.za/sustainable-architecturedecking Accessed 13 - 14 March 2015 • ProSales – June 2011. ‘How to Make Plastic Wood.’
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MAKING WOOD GOOD SINCE 1980.
DECKING
Quality fastening underfoot For long-lasting, aesthetically pleasing and discreet fixing, the SPAX decking screw offers new standards in wooden deck fastening. The SPAX path and footbridge was recently introduced for decking in thicknesses from 30mm up to 42mm.
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PA X deck fastening systems are available in a number of variations, including screws of 5mm in diameter made of stainless steel A2, in lengths from 40mm up to 80mm with stainless steel or a brown coloured antique look. 5.5mm diameter SPA X screws made of stainless steel A4, in lengths from 40mm up to 80mm are available in the stainless steel colour. Brown colour antique-look screws are available in lengths of 50mm and 60mm. The SPAX path and footbridge screw has a diameter of 8mm and a length of 120mm and is made of stainless steel A4, boasting a stainless steel appearance. For the sake of wooden decking requirements, these screws have cylinder head, fixing thread, ground serration, CUT point and are made of stainless steel. For aesthetic reasons, the cylinder head is reduced to a minimum, which also reduces the splitting of the material to a minimum. The fixing thread under the cylinder head enables a permanent fixing and prevents creak noise. Creak noise usually occurs, when decking is fixed with partial threaded screws and after the timber dries out and shrinks, boards rub on the screws or nail shank, causing noise. Usually a screw's length should be 2.5 times the thickness of the decking board. In case the substructure is not thick enough for the calculated screw length, choose shorter screws. Pre-drilling is always recommended to achieve a perfect aesthetic appearance. Screws made of stainless steel cannot increase strength by hardening. Therefore, to avoid the damage of stainless steel screws while driving the screw home, hardwoods have to be predrilled.
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DECKING
When pre-drilling the wooden parts, the driving home torque is reduced and the screws remain undamaged. Screws made of hardened ‘stainless steel’ have reduced corrosion resistance due to the hardening process after which they should no longer be considered ‘stainless’. To pre-drill the screws perfectly, SPA X offers the appropriate drills. Step Drill 4 drills with two different diameters and is suitable for decking screws of 5mm and 5.5mm in diameter. The first step drills decking and substructure with diameter of 4mm for the screw’s core. The second step drills the decking with the diameter of the cylinder head. Step Drill 6 is suitable for the path and footbridge screw and has two steps as well. The first step drills decking and substructure with diameter of 6mm for the screw’s core. The second step drills the decking with the appropriate diameter to house the cylinder head. For both, Step Drill 4 and Step Drill 6, the length of the core drill is adjustable. When drilling in the case of decking, the second step should drill only as deep as the cylinder head is in height of the respective screw in use. The CUT-point effectively reduces splitting of the wood, such as in the case of a screw driven home in soft wood without pre-drilling. Nevertheless, even for use in soft wood pre-drilling the decking is recommended to achieve the best possible aesthetic appearance. Screws with different coatings, for example zinc coating, lacquer-like coatings, or hardened ‘stainless steel’ do not have sufficient corrosion resistance and must not be used for decks in direct contact with the elements. Only screws made of appropriate stainless steel are durable enough to resist the corrosion caused by the elements. The stainless steel in use is usually stainless steel A2 grade. For increased demands on corrosion resistance in the case of coastal areas or for wood with certain ingredients or acid contents, for example, we recommend the use of stainless steel A4 grade. Professionally constructed decks, walkways and bridges with durably fixed decking boards will serve, and please, owners and pedestrians for many years. Faitsch products are distributed in South Africa by FixTec. For more information, visit www.fixtec.co.za or www.faitsch-products.com.
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SAWMILLING
Spitzkop’s kilns and the accuracy of the wet mill deliver dimensionally stable structural material.
A blueprint for savvy
structural timber sawmilling The South African structural timber sawmilling sector operates in a closely fought arena where mill efficiencies, shrewd financial management and simple street smarts combine to weatherproof sawmills against the tough trading conditions in this sector.
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pitzkop Sawmill near Sabie in the Mpumalanga Province of South Africa has not only stayed the round, but has managed to punch way above its weight in the structural timber sawmill sector in which it trades. The growth and development trajectory of the sawmill not only represents a prime blueprint for other sawmills of a similar size, but is also a showcase of how the sector in general can adapt to remain competitive in future.
HISTORY AND A BLANK SLATE The sawmill’s original site was occupied by Graskop Sawmill, which began trading in the 1960s, and in 2007, a new era began for the mill, now named Spitzkop Sawmills when new owners, Marthie and Servaas Nieuwoudt took to the helm.
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The enthusiasm of a new start was quickly overshadowed, however, when a firestorm hit the area in June of the same year, levelling Spitzkop and destroying some 80 000 hectares of commercial forests. “Although the fire was a setback, it was also a blessing in disguise,” says Servaas Nieuwoudt, Spitzkop Sawmills’ Managing Director. “The old frame and circular sawmill technology that we used before the fire gave us poor recovery. The mill had also grown unwieldy over time, which led to a lot of unnecessary costs to maintain the staff and infrastructure that included a wet and dry mill and drying facilities. So the fire gave us the chance to start again.”
SAWMILLING
Wood-Mizer’s Smart Log Processing line is the backbone of Spitzkop Sawmills’ structural timber sawmill operation. Spitzkop’s dry mill section was the first division to go live again in October 2007. The decision to source kiln-dried timber from outside suppliers for the time being allowed for the mill’s gradual ramp-up and also allowed more time to plan the new mill. “The fact that we had time to plan the mill from the start, decide growth goals and shop for equipment that suited our budget without limiting our growth potential and our quality standards, was probably the greatest benefit from the fire,” says Nieuwoudt. Although the dry mill gave Spitzkop the head start it required, it was soon clear that the high cost of the dried material sourced from outside suppliers was eroding profitability. And so the hunt for wet mill capacity that suited Spitzkop’s requirements began. “Affordability, high recovery levels (+60%), accurate sizes and cut quality, modularity allowing for step-by-step capacity increases as more funds become available, increased automation, reduced energy costs and longer blade lifespan ranked high on Spitzkop’s priority list.”
WOOD-MIZER SMART LOG PROCESSING LINE GOES LIVE “Our investigations of mills in the area made our decision quite easy,” says Servaas. “A number of thin-kerf narrow bandsaw Wood-Mizer mills were already cutting in the greater Sabie area and what we saw impressed us. The high recovery rates (65%+) these sawmillers reported together with the output they got from a relatively low investment cost, made it a simple choice.”
The commissioning of Wood-Mizer’s Small Log Processing (SLP) sawmill line at Spitzkop in 2009 coincided with the installation of progressive kiln units using the residue that is now flowing from the wet mill to power the boilers. The seamless interface between wet mill, drying and dry mill, which continues to be a hallmark of Spitzkop’s success to date, allows for the processing of the roughly 2 000m³ of structural timber that currently exits Spitzkop on a monthly basis. The Wood-Mizer SLP line is the backbone of Spitzkop’s logto-finished-product operation. The line is preceded by a Wood-Mizer inclined automated log deck and soon-to-becommissioned debarker that receives a mix of B and C class logs from Komatiland Forests measuring 3.1m long and up to 300mm in diameter. A twin vertical saw (TVS) allows for primary breakdown capacity with a single vertical saw, four single-head horizontal resaws and a double board edger providing the secondary breakdown clout that processes the cants into end spec material once they exit the TVS. Once out of the wet mill, packing cages ensure precisely sized stacks that fit into progressive kiln units. When the rail-borne trolleys exit the kilns, a destacking unit destacks the boards for grading purposes. A laser activated automated crosscut saw then removes any knots from the sawn lengths before they are rejoined into specified lengths via two finger joint units. These sections then pass through moulders to produce S4S structural material ready for the retail sector.
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SAWMILLING
Wood-Mizer’s setters and sharpeners make Spitzkop’s blades go further.
SO WHAT'S TO CONSIDER? “Wood-Mizer’s SLP line has given us the ability to produce high quality competitively priced structural material without having to invest in large capex sawmill capacity to do so,” says Servaas, adding, “The financial flexibility this has given us has allowed Spitzkop to make informed investment choices up or down the value chain to improve output that gives us the ability to push product into the market at extremely competitive prices.” “The output from the mill in tandem with the low operating costs achieved through high recovery rates, precise sizing and quality, low energy costs and reduced manual inputs contribute significantly towards the mill’s profitability,” Servaas emphasises. “Investments in Wood-Mizer blade maintenance units have also had a marked impact on Spitzkop’s monthly blade maintenance and new blade bill, while blades that are in use also last up to 30 rotations. This adds to our profitability at the end of the day.”
Precise stacking procedures contribute to drying accuracy and quality.
“We’re also extremely pleased with the SLP line’s tough performance over the six-year period that we’ve had it. It’s a reliable unit that performs consistently and according to plan, and any technical difficulties are quickly sorted out by Wood-Mizer’s Mpumalanga sales and technical division,” Servaas concludes.
Spitzkop’s expansive dry mill.
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START BUILDING your BOTTOM LINE HEADRIGS
RESAWS
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DISCOVER HOW WOOD-MIZER’S INDUSTRIAL LINE OF EQUIPMENT CAN MAKE YOU MONEY.
© 2015 Wood-Mizer LLC
Wood-Mizer owners around the world rely on our industrial solutions to produce accurate lumber while reducing capital, material, labor, energy, and maintenance costs for their business.
Wood-Mizer Africa (Pty) Ltd 1 Leader Park, 20 Chariot St, Stormill Ext 5, Johannesburg Tel: +27 11 473 1313, enquiries@woodmizerafrica.com
NO NAILS, JUST CRAFTSMANSHIP
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CASE STUDY
American White Oak staircase and reception transform and connect Emaar's new headquarters in Dubai Project garners dwp award for 'Outstanding use of American Hardwood in the Middle East' at Commercial Interior Design Awards 2014 Photographs by: dwp | design worldwide partnership
CASE STUDY
CASE STUDY
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maar, as one of the world's currently largest property developers, wanted to reinvigorate their team and have a new vibrant workplace. The relocation of their entire team to Emaar Square in Downtown Dubai involved dwp | design worldwide partnership working to provide a new dynamic workplace – one that translated their vision for the future into an extraordinary design aesthetic, as a clear reflection of the Emaar brand, spread over three levels and 6 250 square metres. The project, led by Mohammed Alabbar, Emaar Chairman, was not an ordinary relocation project. It was to be an honest reflection of the company’s vision, future and its ever-increasing role in the framework of a growing Dubai. Emaar’s previous office was located in Emaar Business Park and spread over six floors. With fragmented departments and limited shared facilities, the interior was uninspiring and detached from the company’s forward-thinking conceptual foundation. George Kahler, dwp Design Director, explains: “There are many drivers for change in a company’s decision to refurbish their offices or relocate. Emaar’s corporate values were not reflected in its previous property. Its dynamic, collaborative business process was being hindered by the cellularised spaces. Emaar is at the leading edge of local and global real estate development. It is a market leader, making waves and setting new standards. Its interiors needed to reflect this and to attract and retain the best possible personnel.”
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American White Oak was specified for the staircase, and wall partitions and cladding behind the main reception. The staircase, wall partitions and the wall cladding in white oak behind the reception counters are all solid wood.
CASE STUDY
shared collaboration areas and is, therefore, a far more efficient use of real estate, giving the client a much higher return on productivity versus real estate area. Central to each floor is a variety of collaborative workspaces offering an infinite array of meeting scenarios, rather than a series of cellular fixed meeting rooms. This freed up far more space given to open-plan working.” The brief also called for no doors, standing meeting rooms and creative spaces. According to Kahler, a key to the design was the lining staircase, which provides a connected feel throughout the floors. The new office rejects the corporate office style, as well as the overtly branded one. Instead it focuses on an interior that is both reflective of the company’s confidence and vision, as well as the conceptual styles that are appreciated by modern design culture.
The client brief required plenty of natural daylight, long worktables, an open-plan with no doors, taking a loft style, with a collaborative and communicative approach. It was a clear and direct vision, and, according to Kahler, dwp delivered exactly on Alabbar’s requests. As such, the results speak for themselves, with an impactful workspace, inviting for clients and motivating for the team. With three floors linked, all 15 departments have been centralized to one location. Further, the open-plan is also efficient and provides a space for collaborative working. “Emaar’s previous offices supported it through a different era for the development industry. It was emerging from the financial crash and wanted to claw back its entrepreneurial spirit, to shape up its operations, inspire the staff to perform and drive the organization forward,” says Kahler. “Emaar’s previous office space was fragmented and did not fully reflect this new Emaar drive. The new office design completely changed the dynamic and has contributed to and reinforced the chairman’s vision. It’s a huge success.” A quick look at the floor plan shows different areas called ‘neighbourhoods’ located throughout the layout. Kahler elaborates, “The layout concept is based around creating a series of communities. This is not only a direct reflection of what Emaar does, but enabled its constant organic growth and contraction of departments within a non-rigid desk arrangement. Departments are defined by their personnel and sit side-by-side others for cross-collaboration of business units. We used our knowledge of furniture systems and contemporary workplace design trends to give them all the functional performance required by its staff, including cable management and integrated IT.” Kahler adds, “The new space has fewer offices and more
“We went away from all the standard corporate materials,” remarks Kahler. “We did not use carpet tiles or stone. In the open-plan areas, we used marmoleum. Circulation is timber plank and feature areas use poured, raw concrete. We exposed the soffit and services, and sprayed it out white to give a feeling of space and light. We also used natural cork flooring for meeting rooms and on walls, to assist the acoustics and to be able to pin directly onto walls. Additionally, full-height digital wallpaper is employed throughout, to reinforce the brand.” Kahler regards the linking bridge and staircase in the reception, with its exposed soffit, beams and structure, as a stand-out feature. “It’s a wow factor from ground up to second floor reception,” he says. “We coordinated with the structural engineer to cut the post tension slab and insert the steel structure staircase.” American White Oak was specified for the staircase (30-40 mm wood cladded to the MS structure), and wall partitions and cladding behind the main reception. The staircase, wall partitions and the wall cladding in white oak behind the reception counters are all solid wood. All of the interior joinery on this project, excluding the workstations, was undertaken by Aati Contracts. According to Jonathan Greedy, Aati Contracts, it was an interesting project to work on, especially in terms of design and finishes. All initial samples were discussed with dwp, submitted and approved by them. In addition, a few mockups were made at Aati’s factory in Dubai. Factory visits were arranged at different stages of production to ensure quality control as well. Despite a few pre-handover amendments, Aati were able to complete the project within the time frame agreed upon.
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CASE STUDY
While the new Emaar HQ boasts an intelligent interior design that ideally represents the inhabitants in an accurate, subtle way, the community-based approach applied by the property developer is not only obvious in its official dealings, but also its office design. dwp made sure to follow all the sustainability guidelines of LEED certification. It illustrates that the client was not only concerned with the aesthetics and function of the office, but also the impact it would have on the environment. Kahler says, “We always design to LEED sustainable guidelines and this was no exception. Although the client did not request LEED certification, we followed the LEED CI checklist and ensured that all bases were covered. Gypsum was sourced locally and the cork, FSC timber floors and recycled content desking system added to the sustainable design.” Kahler concludes, “Emaar is a dynamic organization, all about delivery, which requires huge coordination requirements. The staff needed to engage internally and with external consultants and clients in many different ways. The wide array of collaboration spaces supported this.”
PROJECT DETAILS: PROJECT NAME: Emaar HQ CLIENT: Emaar Properties LOCATION: Emaar Square, Downtown Dubai INTERIOR DESIGNER: dwp PROJECT CONTRACTORS: KPS JOINERY: Aati Contracts DIMENSION: 6 250m2 WOOD SPECIES: American White Oak
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ABOUT DWP | ARCHITECTURE + INTERIOR DESIGN From small, voracious, entrepreneurial beginnings, since 1994, dwp has flourished into an awardwinning, one-stop integrated design service, with global reach. Even in the most challenging of locations, over 450 multi-cultural professionals work together to deliver architecture, interior design, planning consultancy and project management, across borders, to the highest international standards. With offices currently in 10 different countries across Asia-Pacific and the Middle East, dwp presents its finest iconic designs time and again.
ABOUT AHEC The American Hardwood Export Council (AHEC) is the leading international trade association for the US hardwood industry, representing committed exporting US hardwood companies and all the major US hardwood production trade associations. AHEC runs a worldwide programme to promote American hardwoods in over 50 export markets, concentrating on providing architects, specifiers, designers and end-users with technical information on the range of species, products and sources of supply. In addition, AHEC also produces a full range of technical publications.
WISA® Plywood - Efficiency Made Easy™ Sustainable WISA plywood backed by professional service to advance your business. From UPM’s WISA plywood product range you will find a suitable wood panel for your needs. WISA plywood with constant good quality offer superior performance and value to every project. WISA-Birch is a superb plywood panel with excellent strength properties and beautiful surface. The light, smooth and even surface offers an optimal base for various finishing. WISA-Spruce is a true multipurpose construction panel with high quality. The outstanding technical properties, strength and stability, combined with light weight make it easy to use and handle. WISA products have all relevant construction and environmental certificates making them a reliable choice to satisfy various demands. Panels are available in many sizes and thicknesses.
www.wisaplywood.com
Represented by Nordic Paper and Packaging Tel: +27 (0) 21 700 2800 • www.npp.co.za
COVER STORY
Allwood Technology turns 15 Allwood Technology celebrates its 15th birthday during April 2015 and as a gift to all valued clients, both new and existing, they are offering a Birthday Special for the month of April.
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ustomers can like and follow Allwood Technology on Facebook and Twitter to qualify for a 5% discount on their EB550 Corner Rounding Edge Bander during the month of April 2015 and to stay abreast of special offers, exciting raffle draws and exciting upcoming events like the company’s show days.
EB550 CORNER ROUNDING EDGE BANDER This is the second of Allwood’s ‘Big 5’ machines, the Lion, roaring, fierce, mighty, strong and most definitely ahead of the pack.
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The EB550 Corner Rounding Edger is R528 000 and is available as a special offer at R501 600 for April 2015 only via our Facebook page as part of our birthday celebrations. The EB600 ‘Full House’ Pre Milling and Corner Rounding Edge Bander is R675 000.
THE EB600 PRE MILLING AND CORNER ROUNDING EDGE BANDER BOASTS: • 2 high speed routers with diamond cutters • 2 saw motors for corner rounding at 21 metres per minute • 3 speed adjustment • Touch screen control • 2 top and bottom radius trimming and pneumatic automation • Analogue readout for easy adjustment between 0.4 and 3mm edging • Radius scraper with analogue readout adjustment and pneumatic automation • Liquid spray polish • Buffers
COVER STORY
Large overhead router
400 thicknesser double sided
Cross Cut Saw
630 thicknesser
Mortisers
Planer
Single End Tennoner
Band saw
Spindle with tilt and sliding table
dominant market leader. We strive to offer personalised packages and solutions to each client individually, as no two clients are the same. Join our family today and experience our ‘woodworking machine solutions’ for yourself.”
See the great quality straight of the machine – no cleaning done after.
THE SOLID WOOD LINE This hand-picked range of machinery, including overhead routers, planers, thicknessers, spindle moulders and more, is exclusively available from Allwood Technology and is expanding to include many other products manufactured to the same high quality that are still competitively priced. Scott Myles, owner of Allwood Technology comments on the company’s range of machinery in their Solid Wood Line, saying, “Allwood has a different approach to many other companies in the same industry. At Allwood, we want to supply the correct machines and at the right prices and in this way, we strive to become part of the solution to our clients’ needs, to which we are committed in a competent, professional, and responsive manner. I am driving the company to give the best possible service and to remain a
HAPPY CLIENTS Local manufacturer, Ready To Assemble (RTA) in Sebenza, Edenvale are very impressed with the new Full House Edge Bander they bought from Allwood Technology early this year. They can now offer improved quality products and knock-down cabinets to their clients. RTA also purchased a new Paoloni Beam Saw from Allwood Technology in 2014 which has greatly helped with their mass production. Going forward, RTA will continue to buy from Allwood Technology due to their excellent after-sales service and machine quality.
VISIT THE ALLWOOD TECHNOLOGY SHOWROOM, OR CONTACT: (t) 011 392 1221 (e) scott.m@allwoodtech.co.za (w) www.allwoodtech.co.za
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Solid Wood Lines
630 THICKNESSER R39,000+VAT
OVERHEAD ROUTERS FROM R28,000+VAT
CROSS CUT SAW R27,500+VAT
SPINDLE MOUNDERS R59,000+VAT AVAILABLE WITHOUT TILT FROM R44,000+VAT
PLANERS R38,500+VAT
MORTISERS FROM R25,000+VAT
15THBIRTHDAY
specials APRIL 2015 ONLY
400 THICKNESSER DOUBLE SIDED R48,000+VAT
BAND SAWS FROM R16,000+VAT
SINGLE END TENNONER R66,000+VAT
LIKE OUR TO BE KEPT UP-TO-DATE
BIRTHDAY SPECIAL
15
TH
BIRTHDAY
EB550 CORNER ROUNDING EDGE BANDER
R528,000+VAT 21 metres per min with corner rounding Touch screen control 2 saw motors front and back 2 top and bottom trimming stations with pneumatic automation for easy adjustment between stations, one radius station, one flat 2 saw motors for corner round at 21 metres per min Radius scraper with analogue readout adjustment and pneumatic automation Buffers with liquid spray polishing 3 speed adjustment, max 21m/min Analogue readout on all stations for easy adjustments between 0.4 and 3mm edging
LIKE OUR SOCIAL MEDIA PAGES FOR A 5% DISCOUNT April 2015 only
WINDOWS & DOORS
Out with the old, in with the new Up to 30% of a house's heat loss and gain can occur through its windows and doors. It is therefore important to make the right choice when it comes to fenestration, not only to lower the home's heating, cooling and lighting costs, but also to help save the environment. 42
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WINDOWS & DOORS
BENEFITS OF ENERGY EFFICIENT FENESTRATION Windows and doors are a big investment as they form the backbone of any building structure, but many existing homes have the misfortune of having old inefficient ones installed. “It’s important, now more than ever, to consider the energy performance of windows and doors so as to maximise a home’s energy efficiency,” says Dylan Miller of leading window and door manufacturer, Swartland. He has observed how homeowners nowadays no longer only consider the style and aesthetics of their windows and doors, but also how well insulated they are, and there’s good reason for it, as there are multiple immediate and longer-term benefits, such as:
• Lower electricity bills associated with heating, cooling and lighting. • A reduced carbon footprint as a result. • A more temperate home with less draught. • An improvement in sound reduction. But energy efficient windows and doors are not merely a ‘nice to have’ – they’re a legal requirement as well. All new builds have to comply with the SANS 10400-XA National Building Regulations. This includes windows and doors, which are required to be compliant with the SANS 613 and 204 (Fenestration Products) Mechanical Performance Criteria. Says Dylan, “If they do not meet these standards, the property will be deemed illegal, and the homeowner will be required to replace the non-compliant elements, or else they will not be able to resell their property as a compliant dwelling.”
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WINDOWS & DOORS
Here are some simple things to look out for when choosing windows and doors that let in natural light without compromising on energy efficiency:
before leaving the factory, ensuring that the windows and doors are adequately protected against exposure to the elements.
• Choose a reputable brand: “Choose quality fenestration from a reputable manufacturer with a long-standing history,” says Dylan, pointing out how Swartland has earned a first-rate reputation from decades of supplying high quality products, giving customers peace of mind.
• Professional installation is key: Ensure that your windows and doors are installed by a reputable company and according to the manufacturer’s specifications. Says Dylan, “Even the most advanced fenestration products won't perform effectively if they’re not installed properly.”
• All fenestration and doors must be compliant: Only purchase products that are compliant with the SANS 613 and 204 (Fenestration Products) Mechanical Performance Criteria. Swartland's Ready-2-Fit range of wooden windows and doors are compliant with the National Building Regulations and have been tested for deflection, structural strength, water-resistance, airtightness, operating forces, and the best possible energy efficiency.
• Check out the guarantee: Ensure you receive a manufacturer’s guarantee on the items you purchase. For example, Swartland offers a 10-year manufacturer’s guarantee on its Cape Culture range of windows.
• Seal them before damage sets in: Swartland’s Ready-2Fit range is professionally pre-sealed and pre-glazed
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Dylan concludes that windows and doors are a sizeable investment, and an important consideration when building or renovating. “While it may cost a bit more to comply with the current National Building Regulations, it will save you in the long run, creating a home that’s more cost-effective and comfortable for years to come, and that you can rest assured is fit for resale.”
WOODWORKING MACHINERY
Geerlings and SCM together for 18 years through Southern Africa Geerlings (Pty) Ltd has been a major supplier in the machinery industry since 1965. Always at the forefront of technology and diversification to meet market needs, Geerlings is partner to select European manufacturing agencies for imported machinery and accessories -- including the esteemed SCM Group.
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he SCM Group will have a strong presence at LIGNA 2015, taking up four stands in four halls, occupying over 3 000m2 and showcasing the widest range of wood processing machines. Industrial partner to artisans and large businesses worldwide, the SCM Group has been active in the wood processing industry for over 60 years, offering a product line that includes SCM, SCM Minimax, Gabbiani, Morbidelli, DMC, IDM, Stefani and Sergiani.
LIGNA 2015 WILL DEMONSTRATE SCM GROUP'S TECHNOLOGY Backed by its extensive, efficient and reliable range of solutions, the SCM Group will send a clear message at
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LIGNA 2015, taking place in Hannover from 11 to 15 May 2015: “Manufacturing technology at the service of wooden houses, furniture, doors and windows, joinery producers, and also in the plastics, metal and new materials sectors.” • Hall 25, stand C76: Industry Technologies and Systems • Hall 11, stand D50: Machines for Joinery Trades • Hall 15, stand E36: Technologies for Wooden Building • Hall 16, stand D03: Finishing Solutions
WOODWORKING MACHINERY
NEW PRODUCTS FOR ALL SECTORS PANEL PROCESSING The main stand in Hall 25 will host innovations for all types of machining processes for the industry and panel sectors: • Morbidelli will demonstrate impeccable boringedgebanding quality and high productivity, also for small-to-medium batches (over 20 pieces per minute, with set-up times of less than 45 seconds). • New Stefani models will focus on superb finish quality for industrial edgebanding, and new technology in the form of hot air edgebanding. A new generation of machining units will show trimming, corner trimming and edgebanding strip finishing with copying and increasingly more delicate movements, +10% extra performance with the new rounding unit; a solution with patented copying adaptive micro-regulation. • Gabbiani and Mahros will focus on fully integrated solutions that combine cutting, Morbidelli nesting machining operations and an intelligent magazine to enable excellent performance, with automation playing a key role in ensuring flexibility and high output for the management of very different orders. • For design furniture finishing, DMC will launch innovative machining units that create trendy finishes such as gouged, sawn and structured finishes. • SCM offers the door and window segment a new model with enhanced performance in maximum processing height and operator safety. It will also provide a flexible solution for door and window manufacturers, capable of combining high productivity with the possibility of creating increasingly customised projects.
Oikos 12 model is equipped with the V.2 version of the Routech Quick Link software, which can interface with the sector's most widely-used design CADs and, which – a first on the market – can import ‘.btl’ files generated for nesting machining operations on wall panels, with the resulting material optimisation and waste reduction. • Visitors can also see the ‘Proview’ simulation software, which enables the reproduction of real working conditions of machine programmes on a PC environment in order to prevent possible collisions and errors as well as enabling the calculation of machining times and costs for pieces.
FINISHING Hall 16 will be dedicated to finishing: • Superfici innovations include automated and robotised spraying systems for maximum production flexibility, and cutting-edge technologies such as polymerisation with UV LED systems.
The SCM range for panel processing has many novelties, including the new processing centre with multi-functional table designed for customers who require a reduced footprint, and the new compact versatile edgebanding machine designed to provide increasingly competitive performance – for small businesses as well.
DIY AND JOINERIES
INNOVATION MEANS SOFTWARE
Hall 11 will showcase solutions for ‘DIYers’ and small joineries: • The revamped Minimax range with its new design offers classic, simpler machines. • ‘L’Invincibile’ professional machines include an innovative cutting solution.
Software development is the arena where the battle to give users the tools to do their best work is fought: Both small operators and managers of large, flexible production lines demand constant quality, certain results, optimal ‘cost-effectiveness’ of the production cycle, and the reduction of all possible errors. At LIGNA 2015, the SCM Group will have a dynamic, interactive display in dedicated areas with a team of experts on hand to enable visitors to experience, first-hand, the highly competitive performances offered by the Group's software suite. The spotlight will be on: • The ‘Xilog Maestro’ CAD/CAM software for processing centres, enhanced by the module for three-dimensional surface processing ‘Maestro 3D,’ which is added to application software for specific processes such as Maestro Edge, Maestro Nesting, Maestro WD and MSL.
WOOD HOUSE-BUILDING Hall 15 will host technologies for the wood house-building sectors, and this is where one of the Group's main novelties will be unveiled: • LIGNA 2015 will see the preview of ‘Oikos,’ the powerful Routech processing centre with 6-axis working unit capable of managing the most diverse processes both on beams and X-LAM/CLT wall elements, with maximum size up to 1 250mm in width, 300mm in thickness and 19m in height. The updated
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WOODWORKING MACHINERY
• The ‘Proview’ simulation software as described above, which enables any cycle to be checked in detail, eliminating the possibility of error or collision, and manufacturing time scales and costs to be calculated. • The Watch line supervisor will be demonstrated for furniture, doors and windows integrated manufacturing systems. This is SCM Group's advanced solution for the centralised, speedy and economical management of the integration of the entire manufacturing system. • The newest ‘Ottimo Cut’ will be officially launched at LIGNA 2015 – a veritable revolution in the management of the cutting process, with excellent performance in panel cutting optimisation, thanks to a powerful algorithm developed in partnership with the mathematics department of an important Italian university. It will support an up-to-twenty-fold reduction of the time needed to calculate a complex cutting scheme, and a 50% waste reduction – results that were unthinkable up until now.
NOT ONLY WOOD: PROCESSING OF NEW MATERIALS LIGNA 2015 will see SCM Group showcase a wide range of solutions for the processing of other materials: from metal and plastics, to fibre-cement and composites. The experience and the know-how developed in the wood sector have been transferred with growing success to other manufacturing areas for some time now. DMC, in particular, will highlight specific solutions for solidsurface-finish kitchen countertops, as well as for the satin finishing of stainless steel furniture components for building sector semi-finished products, and the calibration and smoothing of fibre-cement or foam-sheet panels for thermal insulation.
FOR MORE INFORMATION, VISIT THESE WEBSITES: Geerlings (Pty) Ltd: www.geerlings.co.za The SCM Group: www.scmgroup.com LIGNA 2015: www.ligna.de
LIGNA 2015 11 – 15 May 2015 (Monday – Friday, daily 9am to 6pm): Hannover, Germany The world's leading trade fair for the woodworking industry. www.ligna.de
DISPLAY CATEGORIES • Furniture Industry • Woodcraft Solutions • Solid Wood Working • Sawmill Technology • Wood Panel Products and Veneer • Forestry Technology • Energy from Wood
SPECIAL DISPLAYS • Wood Industry Summit • KWF – Entrepreneurial Expertise Center • NRW - Making More Out of Wood • Meeting Place for Crafts • Furniture Industry - ‘RFID-Factory’ • Timber and Timber/Aluminium Windows • Pavilion Lower Saxony • LIGNA Campus • From Tree to Fuel
HIGHLIGHTS • Processing of Plastics and Composites • Furniture Industry and Surface Technology • Marketplace Fibers in Process@LIGNA • RFID-Factory
GUIDED TOURS • First-ever expert guided tours of automation technology highlights at LIGNA.
Exhibitors and visitors at previous LIGNA events.
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Head OfďŹ ce 011 279 5901 Cape Town 021 987 3408
Durban 031 914 0085 www.geerlings.co.za
TOOLS & EQUIPMENT
Makita's 18v cordless, brushless jig saw Our local market will once again benefit from another new addition to the already comprehensive range of Makita 18V Lithium-Ion cordless tools. This time, in the form of the DJV182ZK Jig Saw, that is as powerful as its corded counterpart.
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his new model has a brushless motor that produces less friction and heat, therefore providing higher operating efficiency and increasing the output power and work amount on a single full battery charge. This top handle jig saw has a no-load speed of 0–3500 strokes per minute and a cutting capacity of 135mm in wood and 10mm in steel. There are three orbital settings plus a straight cut setting that can be selected by simply turning the change level on the side of the tool. It has a tool-less blade clamp for easy blade insertion and removal. This model has the added safety feature of a separate lockoff button that, when pressed once, will turn the LED job light on and place the tool in stand-by mode. The trigger switch is then activated to start the machine. It has an ergonomically designed handle with soft grip that ensures operator comfort and control, while minimising operator hand fatigue. The variable speed control dial is located on the rear side for easier operation.
The soft start allows for accurate landing of the blade on the surface of the work piece, while the soft no-load speed reduces the blade stroke for easy tracing of your cutting line. The handy blower function on the front of the tool keeps the cut line clean to enhance operator accuracy. This model is compatible with the Makita 5.0Ah (45 minutes charge time), 4.0Ah (36 minutes charge time) and 3.0Ah (22 minutes charge time) batteries. The batteries and the charger are sold separately. The 3.0Ah batteries are interchangeable with other 18V Makita Lithium-Ion cordless tools in the range, while the 4.0Ah and 5.0Ah batteries are compatible with all models that start with a ‘D’ in the model name and have a star on the battery terminal. The rechargeable and eco-friendly 18V 3.0Ah Lithium-Ion batteries provide longer run time. The LXT Lithium-Ion battery generates an impressive 430% more lifetime work with two-and-a-half times more cycles. The DJV182ZK will provide you with excellent performance and a high level of productivity. For further information visit www.makita.co.za.
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timber home architectural design tel: 021 702 2968 | www.timberdesign.co.za
BRACKEN TIMBERS Growers and Sawmillers of Quality Pine Timber TEL: 074 136 6666 FAX: 033-4131355 / 086 602 6795 CELL: 076 413 5900 E-MAIL: milladmin@brackentimbers.co.za Main Dundee Road, Greytown, 3250 P O Box 141, Greytown, 3250
VINYL PLANK FLOORING
Wood-look vinyl plank flooring for acclaimed game reserve Kevin Bates Albert Carpets (KBAC) has recently supplied and installed flooring at both Tree and Pioneer Camps at the internationally renowned Londolozi Game Reserve in the Sabi Sand Game Reserve.
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vonne O’Brien of The Private House Company, in collaboration with Londolozi co-owner, Shan Varty, selected KBAC flooring material for the refurbishment of all the rooms at Londolozi Tree Camp, and specific areas in both Pioneers and Founders camps, as well as the Londolozi Wellness Centre and The Living Shop. Brandon Park, Sales Director of KBAC, says KBAC’s EarthWerks Rapid Clic floating luxury vinyl plank flooring system was selected to replace Londolozi’s existing laminate flooring. “EarthWerks Rapid Clic was chosen because it has a natural wood look finish with registered embossing which gives the vinyl floor an exceptionally realistic appearance. A dark shade of flooring that was selected for Tree camp was selected to complement the existing décor in the rooms.
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EarthWerks luxury vinyl plank flooring is 100% waterproof and impervious to water spills, which makes it suitable for all environments, including rugged, bush installations. The tongue-and-groove flooring requires little maintenance, is resistant to scratches, and remarkably quiet underfoot. In fact, EarthWerks’ slogan, ‘inspired by nature’, never seemed more appropriate than in this installation,” Park added. Installation, handled by a three-man KBAC team in about a week, was relatively simple and rapid because of the team’s extensive experience and because the floating flooring system did not need to be glued or nailed to the floors.
VINYL PLANK FLOORING
Conservation and environmental protection are core philosophies to Londolozi. Independently owned and managed, it is one of the original pioneering private game reserves of the ecotourism industry in South Africa and has received acclaim the world over as the ‘home of the leopard’ because of prolific sightings in Londolozi and the respected behavioural studies on leopards carried out by the Varty family over many years. Londolozi received the Condé Nast Travelers’ 2014 Readers’ Choice Award for the Number 1 Hotel in the World and last year also won the Tripadvisor Certificate of Excellence award. It was the first game reserve in the world to be accorded Relais & Châteaux status. “Londolozi’s enviable global reputation has been established and preserved over many decades through selecting only top staff, the finest products and service-providers for all its operations. "KBAC’s selection as Londolozi's flooring supplier and installer endorses our Group’s status in the South African flooring industry,” Brandon Park adds.
Luxury wood-look vinyl plank flooring adds to the bush atmosphere of Londolozi Tree Camp.
FIND A DEALER www.skillcraft.co.za // APRIL / MAY 2015
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TIMBER FRAME BUILDING
Building a greener future The trend towards green building and energy efficiency in construction is placing ever-increasing pressure on today's builder. Because this 'green' discourse underpins the future of construction, it is imperative that we acknowledge and try to mitigate the impact that the homes we build can have -- not only on the immediate and general environment, but also on our clients, the very people living in them. Article by Werner Slabbert, CEO of Eco Timber Homes
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oday, we need to go beyond the traditional ‘call of duty’ in our industry and ask ourselves the hard questions: How will the building materials I select for the construction of my client’s home impact on their health
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and well-being? What is the embodied energy of the home and how high will its energy consumption be? And, as a timber frame builder, what can I do to mitigate this carbon footprint through the way I choose to build?
TIMBER FRAME BUILDING
Because wood is a natural insulator, a timber frame home can save on the high electrical consumption of appliances like heaters and air-conditioners, making it an energy- and therefore cost-saving structure throughout its life. It is astonishing that over 90% of new structures built in America, and more than 80% in Australia and New Zealand, are of timber. These figures bear testament to the energy efficiency inherent in timber frame building and point to the very real impact that this type of energy-saving, potentially carbon-neutral construction type could have in the South African context, where energy supply is under severe strain, if not in crisis. Because wood is a living material, it adapts to natural forces by flexing and not cracking under pressures applied by wind, water and earth. In the unlikely event of a fire, wood defies conventional wisdom as it burns at a slow rate and won’t melt and suddenly collapse like other materials can under the same conditions.
DESIGN FLEXIBILITY
House Bartman constructed by Eco Timber Homes.
TIMBER IS THE ANSWER Built correctly, a timber frame home can potentially have the lowest impact on the environment of all available construction materials. Timber growth is measurable in cubic metres and for every new cubic metre of timber grown, a ton of our planet’s excess CO2 is absorbed and life-giving oxygen is released. That timber will then continue to hold onto this fixed CO2 throughout its life as an object with purpose – a house perhaps? Responsibly managed and harvested forests feed into this vital cycle as saplings are planted in place of the harvested trees, supporting the production of a potentially energy-efficient building product that sequesters carbon from the atmosphere. Moreover, supporting sustainable forestry also translates into meaningful jobs in the forestry sector and further downstream.
A fast-growing community of architects is beginning to embrace the myriad of benefits associated with timber construction and its green value. The architect values timber frame building, because of its short construction time and its very low impact on the surrounding natural environment. And because timber frame is so versatile, the architect can offer his or her client an endless variety of interior and exterior cladding options – from log profiles for a more natural, earthy ‘bushveld’ look and feel, to flat fibre cement siding, for example, so that once the structure is completed, it will look just like a home built with ‘traditional’ materials, but with a clean, green heart of timber.
FINANCE Timber frame construction is also acknowledged by the major banks, who are, in most cases, willing to approve commercial and residential structures built by an Institute for Timber Construction (ITC-SA) approved builder, provided that the South African National Standards (SANS 10082:2007) for timber frame building and all other South African building regulations are adhered to. Correctly built timber frame homes that are well maintained are built to last. At a time when homebuyers and builders alike cannot afford not to give thought to the environment and the future when commissioning and building a home, timber, a remarkable renewable resource that has been used in construction for thousands of years, offers a viable, reliable, flexible, modern and aesthetically pleasing solution that is easy on the conscience – and leaves the right kind of legacy. For more information, visit www.ecotimberhomes.co.za.
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WOODWORKING MACHINERY
The AES Extreme 2128 nested base solution installed at the Boards & All premises in Durban.
Boards & All invest in AES Extreme CNC nesting machine from CMC Group Boards & All owner, Deon Manickum was invited to the launch of the AES CNC nesting and point-to-point demonstration at the CMC Group's Durban branch and was very impressed with the machine's quality and technology.
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anickum specialises in kitchen component manufacturing for both the trade and end users and with this in mind, he was looking to up his manufacturing speed and to save time and money. Having owned a number of Italian CNC machines over the years, Manickum knew exactly what was needed to accomplish his production line goals. However, he was concerned about the origin of the machinery, as many top Italian brands opened factories in
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China during the recession and the quality of some of the machinery produced over the years became dubious. It was also important for Manickum to work with a local supplier who could offer him direct and personal service and support. “Some local suppliers seem to bounce between machinery suppliers quite regularly. For me, the local supplier’s reliability and commitment to the brand of machinery I use is critical for a long-term relationship.”
0861 CMC GROUP (262 17687) www. cm c m a ch i n e r y. c o.z a
LINE - R2142
Loading Unit
Unloading & Cleaning Unit
Engraving
Nesting
Barcode Printer
VEGA
Point Blank Solutions
www.pointblanksolutions.co.za
EXTREME 2128
Conveyor Unit
VISIT ONE OF OUR SHOWROOMS • JHB • DBN• CPT
WOODWORKING MACHINERY
On this specific model, Boards & All opted for the high-end machine solution and the CMC Group technicians in Durban, headed by Smart and Schickerling, implemented the installation, start-up and running of the machine. All CMC Group technicians are fully trained by the company’s European suppliers to provide a functional changeover for all clients. The Boards & All team were already familiar with CNC production and operations, but due to multiple components programming, Smart assisted in fine-tuning the production schedules and training on the AES machine.
The Smartek MD401 with full trimming and cleaning units for 0.4mm-3mm ABS impact edging Manickum added to his Richards Bay operations.
CMC Group Sales Director, Cecil Schickerling and Technical Manager, Rob Smart played a pivotal role in allaying Manickum’s concerns by personally consulting with him on the advanced technology of this genuine European machine, whose specifications speak volumes. The AES Extreme 2128 nested base solution is powered by a 9kW HSD elektrospindle with the option of 12kW available for more durable material processing. The aluminium bed, renowned for its durability, is a standard feature on this unit, which is driven by Alphacam advanced software and controlled by Osai controlling software with the latest CAD/CAM software completing this powerful design package.
Manickum also added a new edgebander to his Richards Bay operations, opting for the Smartek MD401 with full trimming and cleaning units for 0.4mm-3mm ABS impact edging. This machine also does veneer edging, PVC and melamine and its reliability and impressive finishing quality is well positioned to serve Manickum’s medium- to high-end clients. Priced under R200 000, this edgebander should feature on all furniture and kitchen manufacturers’ shopping lists. Schickerling concludes, “The CMC Group will continue to provide excellent service and support to Boards & All and will ensure high production rates on all quality kitchens and furniture they manufacture.”
The latest in software on the market regarding a fluctuating Z-axis to produce diamond and wave doors will be a standard on the advanced package from Alphacam and will also have a pendant control for hands-on operation during production, as well as vertical drilling applications.
The CMC Group offers all clients complete turnkey solutions from the complete high-pressure dust extraction system to tooling and additional software solutions, and helps to minimise set-up costs by including delivery, rigging, installation and set-up in all costings, minimising the stress and pressure normally experienced by the customer during installation.
This model will suit the shopfitting, office furniture and flatpack manufacturing sector of the industry and kitchen component and warp door manufacturers will be spoilt for choice with the versatility of this model.
The AES Extreme 2128 nested base solution will be on display at WoodEX for Africa taking place from 9-11 June 2016. In the meantime, expect more exciting products from the CMC Group in the coming months.
The machine also comes with a 250m3 Becker vacuum pump built independently on its own stand to eliminate the current dust and airflow challenges associated with many CNC machines. High-end switchgear, Siemens invertors and PLCs on this machine complement the overall high technical standard of this machine.
For more information, visit www.cmcmachinery.co.za.
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011 460 0992 / 1913
015 307 5558 / 1320
083 379 6913
082 958 0085
sales@biligom.co.za
info@biligom.co.za
coran@cgtimber.co.za
TIMBER PROFILE
Photograph: Courtesy of Rare Woods SA
Rhodesian Teak/ Zambezi Teak Taking centre stage in this installment of Timber iQ's Wood Works series is the handsome Rhodesian Teak. This is the name that many of us still like to use, but the correct trade name is Zambezi Teak. Article compiled by: Staff writer CelĂŠste Perrin Content and editorial review provided by Stephanie Dyer, Timber Information Services Input from Andy Stoker, Rare Woods SA
BEHIND THE NAME Its scientific name is Baikiaea plurijuga. The genus is named after Dr. William Balfour Baikie, a Royal Navy surgeon on the Niger Expedition in West Africa from 1854 to 1857. The species epithet is made up of pluri, meaning many, and jugum, meaning one pair of opposite leaflets of a pinnate leaf (i.e., the leaves of Zambezi Teak trees consist of many pairs of opposite leaflets).
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This hard and heavy wood is known for its attractive colour and fine texture. It is stable in use and suitable for domestic and industrial flooring, decking, furniture (indoor and outdoor), cabinet work, decorative veneer, panelling, counter tops, carving, toys, turnery and food containers. The wood was used extensively in the past for railway sleepers in Zimbabwe and South Africa. It was also popular for printers’ blocks.
TIMBER PROFILE
Baikiaea Plurijuga arbre - Photograph by Roger Culos
Baikiaea Plurijuga feuilles - Photograph by Roger Culos
ADDITIONAL INFORMATION ON THE PROPERTIES OF ZAMBEZI TEAK FOR THE WOOD ENTHUSIAST: ZAMBEZI TEAK: HARD FACTS Botanical/Scientific name:
Baikiaea plurijuga (Family: Caesalpiniaceae)
Trade name:
Zambezi Teak (Other names: Rhodesian Teak, Zimbabwe Teak, Zambian Teak, African Teak, Zimbabwe Redwood, Mukusi)
Origin:
Zimbabwe, Namibia, Botswana, Angola, Zambia and Mozambique. The species occurs in open deciduous forests at altitudes of 900-1200m.
Conservation status:
Not currently endangered or protected*
Bole characteristics:
A medium to large tree, 8-16m in height. The length of clear boles varies from about 3-4m.
Colour:
The heartwood is reddish-brown to dark red with irregular black markings. The pale pinkish-brown sapwood is clearly demarcated from the heartwood.
Grain pattern:
Straight to slightly interlocked or wavy. Texture is fine and even. Lustre low and the wood has no characteristic odour.
Density:
The density ranges from 750 to 980 kg/m3 (47-61 lb/ft.3) with the average for commercial timber being about 890 kg/m3 (56 lb/ft.3)
Strength/Bending properties:
A hard and heavy wood with poor bending properties. It has high crushing strength, but low to medium bending and shearing strength. It is stable in use.
Seasoning:
Seasons well, even in large sizes, but liable to surface checking if dried too quickly. Distortion is negligible, and degrade from initial shakes or from splitting of knots is not serious. (See kiln drying schedule.)
Durability and preservative treatment:
Very durable and resistant to fungi and most borers, but prone to Ambrosia and powder post (Lyctus) beetle attack. Seasoned wood used in exterior positions, resists common dry wood borers and termites. Heartwood is extremely resistant to preservative treatment (railway sleepers are usually clear inside). Sapwood is moderately resistant to treatment.
Working and finishing properties:
It is rather difficult to saw due to its hardness and a considerable build-up of resin on saw-teeth (when sawn green). Blunting effect on tools is moderate to severe. Pre-boring for nailing and screwing is required. Straight-grained material finishes well, but tearing occurs in planing and moulding when the grain is interlocked or wavy. A 20째 cutting angle is needed to give a smooth finish. Material has a tendency to ride on cutters such as jointer knives unless held firmly. It turns easily and a good finish can be obtained. It stains, paints, polishes and varnishes well. Care should be taken when processing impregnated sleepers, due to the presence of preservatives in the outer parts of the sleepers. The wood contains tannins and moist wood, in contact with iron, may stain.
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TIMBER PROFILE
FAMOUSLY FLOORED
He surmises over a possible trend in the current market, saying, “It has a reddish colour, and we’re finding that redder species are less popular in the current market, with customers opting for the paler colours and the rich browns at the present time.”
Zambezi Teak is exceedingly resistant to wear and it was very popular for parquet flooring in the 1950s and 1960s. Many older houses today still have this type of flooring. A famous Zambezi Teak parquet floor is that of the London Corn Exchange. This special grooved floor was designed and installed in 1952 to withstand the abrasion from the grain thrown to the floor by the merchants. Zambezi Teak was ideal for this purpose because of its ability to withstand abrasion without splintering.
*WOOD WORKS
Nowadays, the export trade heavily features flooring blocks manufactured from off-cuts. This timber’s rather difficult workability can be seen as a double-edged sword, in that its cutting resistance is also what gives it excellent wear-resistance in service – which would explain why it is so well-liked for flooring and decking. Timber iQ asked Seamus Harcourt-Wood, general manager of Rare Woods SA (Pty) Ltd. about stocking this versatile timber. Rare Woods sources its supplies from established, legitimate timber producers in Zambia, and carries significant stock levels of Zambezi Teak. While sales are satisfactory, Harcourt-Wood says it is not as popular in the Western Cape as it is upcountry.
Timber iQ supports the practice of sustainable, responsible forestry. On the website of the IUCN – The International Union for Conservation of Nature and Natural Resources – Zambezi Teak is categorized as ‘Lower Risk/near Threatened ver 2.3.’ The IUCN acknowledges the need to periodically update information and, technically, this current categorization means Zambezi Teak doesn’t meet the Red List criteria of an endangered species. However, it may qualify in the foreseeable future as it plausibly becomes closer to qualifying for ‘Vulnerable’ status. This is perhaps an opportune reminder that, as wood works for us, we should also work for wood.
TIMBER DRYING SCHEDULE FOR ZAMBEZI TEAK (Baikiaea plurijuga) [Supplied by H-P Stöhr, Timber Drying Institute (timberdrying@mweb.co.za)] Dry Bulb temperatures (°C) and Relative Humidity (%) at the following Timber Moisture Contents Drying schedule no.
5
Green
40%
30%
18% to final
DB
RH%
DB
RH%
DB
RH%
DB
RH%
60
59
65
46
65
34
75
38
DB = Dry bulb temperature, RH = Relative Humidity Please note: Drying schedules only serve as a guide to the kiln operator, with the response of the timber to the drying condition being the criterion.
REFERENCES AND SOURCES: Bolza, E. and Keating, W. G. 1972-2000. ‘African Timbers, the properties, uses and characteristics of 700 species.’ CSIRO, Australia. Chudnoff, M. 1984. ‘Tropical timbers of the world.’ USDA Forest Service. Agricultural Handbook No. 607. Dyer, S., James, B. and James, D. (in preparation) ‘Woods of Southern Africa.’ Flynn, J.H. and Holder, C.D. (ed.) 2001. ‘A guide to useful woods of the world.’ Forest Products Society, Madison, WI Prospect Database. 1997-2004. Oxford Forestry Institute, Department of Plant Sciences, University of Oxford. ‘Rodesian Teak Baikiaea plurijuga’ www.timbermerchant.co.za/teak.html Accessed 21 March 2015 ‘Rhodesian Teak’ www.wood-database.com/lumber-identification/hardwoods/rhodesian-teak/ Accessed 14 March 2015 ‘The IUCN Red List of Threatened Species™ Baikiaea Plurijuga’ www.iucnredlist.org/details/33188/0 and www.iucnredlist.org/static/categories_criteria_2_3 Accessed 13 March 2015 and 21 March 2015
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• CONSTRUCTION • ROADS • HOUSING
This is your one-stop-shop to learn about the latest construction innovations, technologies, drivers and investment opportunities!
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Obert Chakarisa Chief Executive Officer, South African Institute of Architects, South Africa
William Jiyana Acting DDG: Human Settlements Planning and Strategy, Department of Human Settlements, South Africa
Ben Pierre Malherbe Chief Executive Officer, Calgro M3 Holdings, South Africa
Joe Osae-Addo CEO, Constructs LLC, Ghana
Toby Shapshak Editor and Publisher, Stuff Magazine, South Africa
Daniel van der Merwe President, Gauteng institute of Architecture, South Africa
12 – 14 May 2015 - Sandton Convention Centre, South Africa CONSTRUCTION WEEK: 11—15 MAY 2015
www.construction-week.com
GREEN INITIATIVES
Greenpop launches crowdfunding campaign with Ripple to raise funds for community eco-education hub Greenpop has launched a crowdfunding campaign on Ripple to fundraise for an expansion to its Woodstock tree nursery, turning it into a green education hub for the community.
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wo years ago, Greenpop took over a neglected piece of land on Mountain Road in Woodstock, and turned this into their tree nursery. The nursery is at the heart of Greenpop’s mission; it’s where all the trees are kept that they plant across under-greened areas of Cape Town, and where they cultivate a thriving vegetable garden.
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“We have managed to transform this space from a pile of rubble to an abundance of green,” explains Misha Teasdale, Greenpop’s co-founder and Tree-EO. “But we have a bigger vision for it. We want to create an innovative green education hub accessible to everyone, where people can come together to learn, share, and eat; a space where we’ll spread awareness on the importance of trees, of growing our own food, and of taking care of our environment.”
GREEN INITIATIVES
O’Donnell. “It empowers us all to become self-sustainable and it encourages our whole community to take care of the trees we plant together.” In addition to Greenpop’s new education centre, the tree nursery needs an upgrade on several levels. If enough funds are raised, Greenpop will purchase further tools, seeds, water tanks, and fences. “It will all hugely help in our goal to grow more trees, and to turn our nursery into a beautiful showcase and resource for urban greening,” says Misha.
Greenpop plans on using money raised to purchase a container to up-cycle in true Greenpop style into an innovative green workshop space. This will allow the organisation to host groups of school children for interactive eco-lessons, and teachers and groundsmen from their beneficiary schools for skill-development workshops. The space will also be accessible to anyone in the community interested in learning about trees, urban growing, and related green issues. “Education and activation are such essential elements of our vision – of our Treevolution,” explains Lauren
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People who contribute towards the campaign can also choose a reward for themselves. Anyone who contributes R100 or more will get their name added to the design that Greenpop will paint on the container. From R200, people can also choose additional rewards, which include small trees, signed Jeremy Loops CDs, Levi’s jeans, lunch with the Greenpop team, tickets to Greenpop’s Platbos Reforest Fest, art prints by Greenpop’s Zambian director Uncle Ben, and even a weekend for two at a luxurious guesthouse in Constantia. Additional rewards will be introduced during the course of the campaign, which will run for 45 days. For more information, visit www.greenpop.org.
TIMBER ROOFING
Prevention is better than cure Sadly, many building owners choose price over quality with regards to workmanship and materials, which can lead to costly, disastrous and sometimes even life-threatening situations. This couldn't be more important when it comes to the roof structure. Article by Fred Wagenaar, Executive Officer of the Institute for Timber Construction, South Africa (ITC-SA).
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he roof structure is arguably one of the most important construction elements of any residential building to be constructed. It protects the occupier’s property, finishes and inhabitants from the elements and it is also one of the largest, heaviest and most costly structural components in any home design. Therefore it is logical to expect that a great deal of planning, design and know-how would be invested in order to create an aesthetically pleasing and sound structure that can safely carry the induced loading, as well as offer acceptable longevity and aesthetic appeal for the lifespan of the building. While this all sounds logical, many building owners choose price over quality with regards to workmanship and materials, which can lead to costly, disastrous and sometimes even life-threatening situations.
WHAT ARE THE ESSENTIAL ELEMENTS THAT NEED TO BE CONSIDERED IN ENSURING A SOUND TIMBER ROOF STRUCTURE? 1. The timber used must be structural timber and must comply with the material, and where applicable treatment requirements, to meet the design intent: Structural timber needs to be marked with red ink on the face of the timber at 1m intervals. If it does not bear these structural markings, it will need to be condemned. Consumers should beware of unmarked timber or timber with black crosses at the end as this marking confirms that the timber in question is not structural timber. 2. The designer must create an accurate cutting bill: The cutting bill will dictate the exact lengths and angles at which the timber must be cut for proper assembly.
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Photo by Kyden
3. The right engineering systems must be used: The ITC-SA provides accreditation for four systems that are recognized for meeting all prescribed design requirements in South Africa. • MiTek Industries SA • Roof Truss Products • International Truss Systems • Multinail Africa
TIMBER ROOFING Note: The metal connector plates used must be supplied by the specific system that was applied in the design. In addition, the metal connector plates must be the right size, positioned correctly and located as per the standard methods and tolerances prescribed by the system. 4. All connections and bracing details must be in accordance with the rational design intent: In other words, everything that holds the structure together, such as the number of nails, bolts, washers, brackets and cleats, must be in accordance with the engineering design. All necessary bracing accessories must be stipulated on the design drawings.
BEWARE OF THE FOLLOWING COMMON PITFALLS: • Choosing price over quality The old adage of what you pay for is what you get could never be truer than when it comes to timber roof construction. Many consumers try to save on the roof construction, and often end up spending more time remedying the resultant consequences that arise from using sub-standard materials and workmanship. Bear in mind that in order to create a professional and sound end result, you will need to employ the knowhow of professional, knowledgeable and experienced individuals, which will no doubt cost more initially than non-qualified individuals off the street, but which will save the consumer a lot of money and stress down the line. • Choosing the right engineer Use an ECSA registered professional, accredited with the ITC-SA to design and certify the timber roof structure. Ensure that your chosen professional has good working knowledge of timber and roof construction. • Prefabricated roof trusses are best Prefabricated roof trusses are cut by advanced, specially designed machinery and are therefore far more accurate than their hand-made counterparts. Prefabricated trusses covered by a rational design, will also use less timber and will comply with all regulatory requirements, assuming they are designed by an ITC-SA accredited professional. In all industry related tests, the ITC-SA has found site-made timber trusses to be more expensive than pre-manufactured timber roof trusses. • Guarantee By using reputable fabricators, such as those registered with the ITC-SA, the consumer can immediately have the peace of mind that these companies or individuals are regularly audited and monitored, and that should something go wrong with their workmanship, he or she
will have recourse in the form of a manufacturing warranty. Part of the membership requirements for engineers accredited by the ITC-SA, is that they all carry their own Professional Indemnity insurance cover for any professional negligence on their part with regards to the specific structures they sign-off and take responsibility for.
ITC-SA ACCREDITED FABRICATORS Each and every ITC-SA-accredited fabricator is audited on an annual basis, with regards to quality, competence and compliance to inter alia the South African National Standards – SANS 10243 – The Manufacture and Erection of Timber Roof Trusses. An annual Certificate of Competence is issued by the ITC-SA to confirm that the fabricator complies with the National Design and Material Standards and the ITC-SA requirements. Pre-fabricated roof trusses shall at all times be in accordance with the rational design requirements given by the engineer, as well as the SANS requirements below. To confirm compliance, an engineering certificate will be required on completion of any roof structure: • SANS 10400 - Part L • SANS 10243 • SANS 10163 • SANS 1783 - Part 1 and 2 • SANS 51075 • SANS 3575 • SANS 10096
CONCLUSION: • Internal investigation and findings by the ITC-SA have confirmed that 90% of hand- or site-made trusses do not comply with the relevant building regulations and SANS material and design specifications. • Research has also confirmed that hand- or site-made timber roof trusses are on average 20% more expensive than pre-manufactured timber roof trusses. • Pre-fabricated roof trusses come with guarantees in the form of a manufacturing warranty and an engineer’s certificate, which the owner may call upon to have the roof structure repaired. • Pre-fabricated roof trusses can only be approved when a rational design is available confirming that the material and truss design meet and/or exceed the SANS requirements. The ITC-SA makes sourcing of reputable roof fabricators, erectors, inspectors and engineers easy. All the consumer needs to do is contact the Institute directly or visit its website, which provides a comprehensive list of all accredited members across the country. For more information, visit www.itc-sa.org.
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EVENTS
Date set for 2016 WoodEX for Africa The next WoodEX for Africa will be held at Gallagher Convention Centre in Midrand, South Africa, from 9 to 11 June 2016.
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oodEX for Africa is Africa's only expo that focuses exclusively on the timber industry and is the perfect platform for woodworking professionals to connect with specialised dealers, to catch up with the latest timber trends, to secure new business contacts and to compare deals. Held annually since 2012, WoodEX for Africa has enjoyed tremendous support from the local and international timber industry and the event is now established as Africa's leading industry showcase. Stephan Jooste, Director of WoodEX for Africa, says the organisers are exploring the possibility of partnering with a major international industry exhibition and a decision was made to present WoodEX for Africa biennially from 2016, in order for the event to fit in with the global timber industry calendar. "We would like to thank our loyal supporters for helping us to establish and grow WoodEX for Africa the past three years, and for all the positive comments and advice received through difficult times from our media and industry partners. With this support behind us the future of WoodEX for Africa is looking bright."
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Following WoodEX for Africa 2014, the event received outstanding feedback from its exhibitors and visitors, with exhibitors reporting positive feedback in terms of the quality of visitors, the great networking opportunities, market exposure and business conducted. Visitors indicated that they were specifically impressed with the outstanding quality of the exhibitors' displays and the professional appearance of the event. "Bookings for exhibition space at WoodEX for Africa 2016 are now open and we invite the industry to book soon to secure the best possible position and to benefit optimally from the event's marketing campaign. We are looking forward to meeting all our industry friends and partners at WoodEX for Africa 2016," says Jooste. For more information about WoodEX for Africa visit www.woodexforafrica.com or e-mail info@woodexforafrica.com.
BOOK NOW!
9-11 EXPLORE JUNE NEW BUSINESS
OPPORTUNITIES
2016
AT AFRICA’S ONLY TIMBER MACHINERY, TOOLING, MATERIALS & FITTINGS EXHIBITION Furniture & Kitchen production | Forestry & Sawmilling | Wood Materials, Machinery & Veneers Tools, Loggers & mobile Saws | Timber Construction and supply | Industry Surface & Treatment Technologies Many more Timber related products, machinery and services.
Gallagher Convention Centre | Midrand | South Africa info@woodexforafrica.com | +27 (0) 21 856 4334 www.woodexforafrica.com
EQUIPMENT
The Taylor range of materials handling equipment, distributed exclusively in South Africa by BLT SA, encompasses the TXLS series log stackers, designed to efficiently handle a full log load, from truck or rail, in a single pass.
Taylor-made The Taylor range of materials handling equipment, distributed exclusively in South Africa by BLT SA, encompasses the TXLS series log stackers, designed to efficiently handle a full log load, from truck or rail, in a single pass. “These robust log stackers, which are used for loading, stacking, transporting and unloading heavy loads of logs, offer improved productivity and safety, as well as fuel efficiency, reduced exhaust emissions and low maintenance requirements,” says Charity Gumede, marketing director, BLT SA . “There are three models in the TXLS range – TXLS-800, TXLS-900 and TXLS-1000 – which are built on an all welded, high strength steel chassis and frame, with heavy duty drive and steer axles.” “The key focus in the design of these machines has been on the production of high performance log stackers that offer the forestry and timber sectors efficient duty cycles,
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low operating costs, extended service life and improved operator safety and comfort.” Taylor TXLS-800, TXLS-900 and TXLS-1000 models have rated lift capacities of 36 288kg, 40 824kg and 45 360kg respectively. These log stackers are fitted with Tier III turbocharged diesel engines, with low emissions and efficient fuel economy. Standard engine features include a fuel/water separator, a high capacity cooling system for operation in all environments and engine/transmission protection systems.
EQUIPMENT
Lower fan and engine speeds reduce noise levels during operation and a built-in shut down system for the engine and transmission (high coolant temperature and low oil pressure) is standard. A high performance non-metallic pusher fan blows dust and debris away from the operator. The transmission for the TXLS series is a remote mounted, 3-speed, fully reversing, modulated powershift system. An operator controlled electric declutch feature enables precise vehicle position control and full directional modulation ensures soft directional changes. There is a separate air-to-oil transmission cooler and a remote mounted filter reduces oil spills. This series is fitted with a large capacity heavy gauge steel wall fuel tank with an integral strainer. The hydraulic tank, which promotes system cooling has full flow in-tank return filtration. Standard Taylor ULTRA-VU rigid masts are designed for clear visibility for the operator. There is pressure compensated lowering control for near equal lowering speed, whether the stacker is empty or loaded. A mast tilt angle indicator is standard and a tilt lock control valve is fitted to prevent mast twist. An additional forward mast tilt allows high tiering and stacking of logs.
For enhanced comfort and safety, the operator’s station mounted is in an offset position for greater visibility over centre mounted machines. Other new ergonomically designed features include fingertip full hydrostatic steering, an air suspension seat for reduced vibration and a tilt steering wheel and hinge down instrument panel. Anti-slip steps and handrails ensure safe three-point mounting and dismounting. Other standard safety features are forward and reverse motion alarms, a high mounted tilt cylinder for mast stabilization, a manual lowering valve system in case of emergency and dual flow control valves that prevent the load from failing. The parking brake, which doubles as an operator controlled emergency brake, has a brake saver system that prevents the operator from driving through parking brakes. Optional accessories for the TXLS series include rail car clamps, log pushers and a carriage hold down feature. BLT SA supports the Taylor range of log stackers, loaded and empty container handlers, rough terrain forklifts and reach stackers, with a technical advisory, support and spare parts service in South Africa.
This series has been designed for easy maintenance procedures to reduce downtime. An electronic diagnostic and maintenance monitor on the engine has a fault code history for fast problem location. The mast pivot housing is a two piece bolt-on structure for easy and safe service removal.
FIND A DEALER www.skillcraft.co.za
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TIMBER TREATMENT
Closer global collaboration strengthens Arch operations As part of the global market leaders in wood preservation, Arch Wood Protection South Africa has embraced a closer collaboration strategy with its UK and European counterparts.
T
he vision is to take service delivery beyond the product boundaries and create a synergy that will benefit Arch customers across all platforms.
During a recent visit to South Africa, Business Director for the Arch Wood Protection European, Middle East and African markets, Tony Kelly, said that by forming closer ties on technical and sales operations, Arch would be able to broaden its commercial collaboration and product package offerings. This comes off the back of a tour of the UK operations by Arch South Africa’s Sales Manager, Rory Milne. “It was encouraging to see that our tailor-made service operations in South Africa are similar to that of the UK. This means that our customers are benefitting from international service standards and will continue to derive further benefit through these global operational collaborations,” said Rory. “By pooling the expertise of our technical staff, we are able to offer a more effective treatment service, which is paramount to ensuring the longevity of our customer relationships,” added Tony. While the South African market may be seeing less movement in TanalisedTM C (CCA) innovation in comparison to the UK market trends, Tony was very impressed with Arch SA’s partnership in the recently launched Biligom® timber by Biligom International (Pty) Ltd. “Being recognised as product innovators is key to our global positioning as market leaders. Arch SA’s customers’ use of TanalithTM E treatment in Biligom® timber embraces that philosophy and our vision to form partnerships that pioneer our brand and its products,” said Tony. With health and safety being at the forefront of Arch globally, Tony was proud to confirm that there have been no environmental incidents reported to date. Arch SA has just completed its annual audit to meet world health and safety standards in compliance with the ISO 9001: 2008 and 14001: 2004 requirements.
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Rory Milne (left), Arch Wood Protection SA Sales Manager with Tony Kelly (right), Business Director for the Arch Wood Protection European, Middle East and African markets. “A lot of people talk about product safety, but we do it. Our culture of safety is a global mentality and ensures that Arch products are fully compliant. I am pleased to see that in South Africa the bar is set equally high and that the global standards are maintained locally,” added Tony. With product innovation and safety standards that meet international recognition and a marketing and service delivery on par with that of its UK and European counterparts, it is evident that Arch SA has put to rest a ‘commodity only’ approach to its operations. “Our global collaborated approach is one that will support our customers’ individual needs to be able to treat more effectively. We look forward to partnering more closely with our global counterparts in a way that our customers will enjoy the spin-off benefits in their businesses,” concluded Doug Sayce, General Manager of Arch Wood Protection South Africa.
BETTER THAN TIMBER
The design and construction of a fence around your home is not just for boundary markings. It also complements the style of your home alongside providing privacy and some level of security.
UCO Decowood is a durable strip made from fibre cement. It is environmentally friendly, termite-proof and weather resistant. Ideal for both internal and external use, it can be used as stair risers and treads, ceilings, feature walls, louvers, decking and fencing.
UCO fence is available in various sizes, with wood grain texture giving you a timber look-alike finish but with fibre cement durability.
CAPE TOWN HEAD OFFICE TEL: 021 933 0052 JOHANNESBURG: 011 708 3016
FAX: 086 516 0593 EMAIL: info@ufcc.co.za
FAX: 086 516 4291
EMAIL: jhbsales@ufcc.co.za
Product may vary according to specification.