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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  • Contents
    Types 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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