BS 476-3:2004+A2:2007
Current
The latest, up-to-date edition.
Fire tests on building materials and structures Classification and method of test for external fire exposure to roofs
Hardcopy , PDF
English
30-04-2007
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 |
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.$
| BS EN 13238:2010 | Reaction to fire tests for building products. Conditioning procedures and general rules for selection of substrates |
| BS EN 13501-1 : 2007 | FIRE CLASSIFICATION OF CONSTRUCTION PRODUCTS AND BUILDING ELEMENTS - PART 1: CLASSIFICATION USING DATA FROM REACTION TO FIRE TESTS |
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