Document Status
Current
Supplement
Core Supplement
Series
Guidance Note
Abstract
Explanation of differences between reaction to fire classifications and fire resistance ratings, with reference to the stages in a fire.
History
Issue 3, March 2022.
Supersedes Issue 2, September 2019.
Supersedes WPA/FR 0818, issued August 2018.
Subjects
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Coverings and surface finishes
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Materials
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Fire protection
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Timber/joinery
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Surface finishes
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Wood preservatives
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Special subject areas
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Fire
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Fire resistance
Publisher History
The Wood Protection Association (WPA) is a not-for-profit timber trade organisation. The WPA champions and provides advice on industrial wood treatment technologies that enhance the performance of softwood products. Covering: preservative treatments, wood modification and factory applied flame retardant treatments.
Information
NBS
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
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