Fire tests on building materials and structures Classification and method of test for external fire exposure to roofs

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-04-2007

Publisher

British Standards Institution

Committees responsible
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification
5 Three stage test method incorporating burning brands,
   wind and supplementary radiant heat
Annex A (informative) - Apparatus for roof test
Annex B (informative) - Intensity of radiated heat on
        specimen
Annex C (normative) - The testing and classification
        of roof lights, roof windows and integrated
        panels for external fire exposure

Provides test that are designed to enable measurement of: a) capacity of a representative section of a roof to resist penetration by fire when the external surface is exposed to radiation and flame; and b) distance of the spread of flame on the outer surface of the roof covering under certain conditions.

Committee	FSH/22/-/8
DevelopmentNote	Supersedes BS 476-3(1975) and 03/109613 DC. (06/2004) Supersedes 06/30152150 DC. (04/2007)
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 476-3:1975

The tests given in this British Standard are designed to enable measurement of: capacity of a representative section of a roof to resist penetration by fire when the external surface is exposed to radiation and flame; and distance of the spread of flame on the outer surface of the roof covering under certain conditions. Roofs are graded according to the angle at which they are tested, the time for which they resist penetration by fire, and the distance of superficial spread of flame on their external surface. #An additional test for rooflights is given in Annex C.$

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BS 476-3:2004

Fire tests on building materials and structures Classification and method of test for external fire exposure to roofs

Table of Contents

Abstract

General Product Information

Scope

Standards Referencing This Book

Category

Subcategory