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ASK THE EXPERT
amount of companies making claims they are providing sustainably sourced products. By using FSC paper with the logo on to print invoices, delivery notes etc, many companies can exploit the system by making it appear that their products are certified, when in fact it’s just the paper that is FSC certified.
There are ways to check that what you are purchasing is sustainably sourced. Firstly any company claiming to sell FSC or PEFC products will always have a certifi- cate in place – you can check certificates on the FSC or PEFC database.
Secondly any products that claim to be FSC or PEFC certified must feature the logo or state the fact next to each relevant product on the delivery note and invoice. It is possible for products to be sustain- ably sourced even without the FSC or PEFC certification. There are many other schemes that companies can be a part of – The EUTR (European Directive) and BM TRADA Forest Products Scheme. Companies selling sustainably sourced timber will always be happy to discuss their procurement policies.
The FSC list of certified suppliers
http://www.fsc-uk.org/database.150.htm and the PEFC at
www.pefc.org/find-certi- fied/certified-certificates.
WWW.ARCHITECTSDATAFILE.CO.UK
HOW LONG CAN TIMBER BE GUARANTEED PROTECTION IN OUR CLIMATE?
Each timber species will have its own approximate lifespan, so it’s always worth checking with a supplier. There are timber buildings all over the globe that have stood the test of time for hundreds of years, the oldest existing wooden buildings are in China and date back to the mid Tang Dynasty (618-907).
Some of the most popular timber species for commercial applications include Western Red Cedar which can last over 60 years if installed correctly, Siberian Larch which can last over 50 years and ThermoWood, which has an expected life cycle of 30 years (60 years if finished and maintained). I would always recommend finishing your timber to not only enhance its beauty but also extend its life. There are specialist wood finishes on the market such as Sansin Enviro Stains which penetrate into the timber so will never peel, crack or blister and are long lasting and easy to maintain.
WHY AND WHEN SHOULD I CONSIDER USING TIMBER FOR CLADDING?
Timber cladding has been used successfully on all types of buildings from homes to
commercial offices, supermarkets and public spaces.
The possibilities are endless, there are many species available including Western Red Cedar, Siberian Larch, ThermoWood, Accoya and Oak. Timber not only contributes to a build-
ing’s sustainable footprint but it also offers one of the most flexible options out there. Various different profiles and surface textures are available, each giving a subtly different look. Plus, using a finish you can select a colour that perfectly suits your project.
TIMBER DECKING - WHEN SHOULD I SPECIFY THIS AND WHEN SHOULDN'T I?
There is a common misconception that the applications for timber decking are limited however timber has been used in harbours, ski resorts and high traffic areas in some of the harshest environments on the planet.
Decking only becomes slippery when wet when it has been neglected and mould or algae has been allowed to grow on the surface. This can easily be prevented by applying a finish at the outset and periodic cleaning/maintenance.
ADF FEBRUARY 2017
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