Preservative Treatments

WPA Code of Practice – Industrial Wood Preservation
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This WPA Code of Practice provides detailed guidance on industrial wood preservation for specifiers, wood treaters and those involved with using treated wood.
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Installing Treated Fence Posts
Installing Preservative Treated Timber Fence Posts
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The information in this Guidance Note applies to both ROUND and SQUARE sawn softwood posts, pre-treated with a preservative for fencing applications.
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WPA Benchmark Scheme for Preservative Treated Wood
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This document is a summary of the WPA Benchmark Quality Approval Scheme for preservative pre-treated wood.
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Biocidal Products Regulation
Brexit and the EU Biocidal Products Regulation (BPR)
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Biocidal Products Regulation (BPR) applies to a very wide range of chemical products used by industry, professionals and the general public throughout the EU. The common factor is that all incorporate biocides in their finished form. Wood preservatives are just one group of products within scope.
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Guidance for wood treatment
Guidance for Wood Treaters in the NTR Region
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Guidance for Wood Treaters in the NTR Region. Treatment Specifications used in the UK Market
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TDUK Trade Note: Are your treatment plants and those of your suppliers independently audited?
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The original implementation date of June 2022 as set out in the Code of Conduct had been postponed to allow members, the NSD committee and WPA members to work together in addressing the technical challenges posed.
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use class 4
Use Class 4 treated timber: specifying, buying and installing
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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)
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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
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The WPA Code of Practice for Industrial Wood Preservation groups the applications for treated wood into Use Classes
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Use class 2
Understanding Use Class 2 (UC2)
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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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