Softwood continues to be the most popular external cladding for most buildings. Western Timber Research and Development Association (). Species all the species are durable and suitable for external use for a minimum 25 years. Imported western red cedar – very good for cladding, light, pliable. Page 1. Cladding Installation details including;. Head, Cill and Jamb. TRADA Drawings supplied by.

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Eurocodes Span Tables Wood Species. Want access to British Standards?

There are a number of ways of removing stains, from washing to the application of chemical cleaners. Stainless steel or non-ferrous fasteners are preferred to prevent long term corrosion and possible chemical reaction with some timber species. What type of fasteners should I use with timber cladding?

Where can I get more help? Crosslam and glulam house. Durable species may be more expensive to specify at the outset but may require less maintenance than a cheaper, less durable species. Designed well, it can produce a beautiful, long-lasting, low maintenance rain screen.

As the boards weather, they can leach out extractives that can stain other boards, or the surfaces of other materials below or adjacent to them. Measures that can be taken include careful building design including water-shedding details to direct rainfall away from the cladding and protecting absorbent surfaces around the cladding from the runoff during the initial weathering process. Further information on discoloration of cladding and maintenance options is available in externaal research area.


Detail drawings showing precise methods of construction are available in this section. Be confident about taking on more challenging timber projects Get advice quickly online and through our helpline Avoid making mistakes by obtaining best practice guidance.

Dashboard Account Details Log out. When selecting species, consider the natural durability of the wood and the options for preservation and coating.

DGN 3 External timber cladding, TRADA Technology – Publication Index | NBS

Key publications include a wide range of Wood Information Sheets for specifiers, Span tables, Eurocode 5 guidance, Construction briefings and technical manuals on timber frame, cladding, decking, green oak, high performance windows, flooring installation and timber in refurbishment. Covers solid timber, softwood and hardwood cladding. What species are suitable for use in timber cladding?

Some species commonly used as uncoated cladding are prone to extractive staining. This document Newer versions. Offers guidance to designers and specifiers to enable best practice principles to be applied to external timber cladding. This document Older versions. Just take 2 minutes to register a Tumber account with us first.

EXTERNAL TIMBER CLADDING written by Hislop, Patrick, STOCK CODE: : Stella & Rose’s Books

Tongued and grooved boards should be further limited, preferably to mm max mmwith only kiln-dried wood used. Call our technical helpline for independent expert advice Softwood is the most common choice for cladding in the UK, with home-grown species increasingly selected. Board thickness is fimber upon the profile. To view drawings that are within our books, please visit our online books section.


External timber cladding

Home Membership Wood Information Publications. TRADA members benefit from full access to our research and publications. Timber frame construction 4 Clear All Filters.

Please note that advice is limited to 30 mins per call. Commercial consultancy by BM TRADA can also be provided where written or professional opinion is required on specific products or projects.

The documents are long and contain many drawings and thermal modelling information.

How can I prevent my cladding from leaching out extractives? Please extenal that you agree to us using your personal data in accordance with our Privacy Policy. Horizontal boards cannot be easily bent around tight radial curves, particularly if they have a tongued and grooved profile.

Quick Links ; Wood Species Database.