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- WIS 2/3-3 Flame retardant treatments for timber products
WIS 2/3-3 Flame retardant treatments for timber products
In many situations, timber and wood-based materials may be used in their natural, untreated state. However, flame-retardant (FR) treatments extend their use to situations that demand enhanced 'reaction to fire' properties.
This Wood Information Sheet (WIS) covers treatments that may be applied to wood and wood-based products both factory and site applied to upgrade their fire performance to Euroclass B or C or National class 1 or 2 (or Class '0', found only in Approved Document B to the Building Regulations (before the 2019 edition), where it is defined by a combination of performance in tests according to BS 476 Parts 6 and 7).
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- ContentsTypes of FR treatment
Compatibility of FR timber products and treatments with additional coatings
Performance requirements
Fire test evidence
CE marking - Product information
WIS 2/3-3
02/08/2019
BM TRADA
10 Pages
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