builders

Guidance for wood treatment
Guidance for Wood Treaters in the NTR Region
by TDUK|29 November 23|Build
Guidance for Wood Treaters in the NTR Region. Treatment Specifications used in the UK Market
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use class 4
Use Class 4 treated timber: specifying, buying and installing
by TDUK|26 April 23|Build
Preservative treatment provides wood with added durability (against decay and insect attack). But, it’s a mistake to assume that all treated wood is the same. The level of preservative protection required depends on where it is to be used.
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Developed by the Construction Products Association, CCPI is in response to one of the key findings of the enquiry into the Grenfell fire which confirmed that shortcomings in product information had contributed to the disaster.
Code for Construction Product Information (CCPI)
by TDUK|08 November 22|Build, Supply
The UK is raising the bar on performance information supplied with construction products with Isuue 1 of the CCPI, published in September 2021.
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Preservative Treated Wood
The Buyer’s Guide to Preservative Treated Wood
by TDUK|08 November 22|Build
The WPA Code of Practice for Industrial Wood Preservation groups the applications for treated wood into Use Classes
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The Builder’s Guide to Plywood
by TDUK|21 September 22|Build
Plywood is a highly versatile building material which spans a wide range of applications from wall and floor sheathing to designer interiors and glider fuselages. There are many types of plywood available, including specialist tropical veneers such as marine plywood which, while having very good weather resistance and strength properties,...
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Sell the right treated timber
Sell the right treated timber
by TDUK|21 March 22|Supply
David Hopkins, CEO of Timber Development UK, explains why merchants need to double check that they're selling correctly treated timber to their customers.
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Use class 2
Understanding Use Class 2 (UC2)
by TDUK|21 September 21|Build
Use Class 2 is for end uses where wood is used indoors, above ground and within the building envelope, but with an occasional risk of wetting (from plumbing leaks for example).
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Use class 3c
Understanding Use Class 3 (UC3)
by TDUK|21 September 21|Build
Use Class 3 is for end uses where wood is used outdoors NOT in contact with the ground.
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Use class 4
Understanding Use Class 4 (UC4)
by TDUK|21 September 21|Build
Consumer and contract law require that any product offered for sale must be fit for its intended use and a wood product impregnated with preservative is no exception. The minimum standards for the treatment of wood are set out in British Standard BS8417 (Preservation of Wood: Code of Practice). In...
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