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BSI BS 476-3:2004+A2:2007

Fire tests on building materials and structures -- Classification and method of test for external fire exposure to roofs
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BSI BS 476-3:2004+A2:2007

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

PUBLISH DATE 2007
PAGES 16
BSI BS 476-3:2004+A2:2007

The tests given in this British Standard are designed to enable measurement of:

  1. capacity of a representative section of a roof to resist penetration by fire when the external surface is exposed to radiation and flame; and

  2. 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.$

SDO BSI: British Standards Institution
Document Number 476-3
Publication Date April 30, 2007
Language en - English
Page Count
Revision Level
Supercedes
Committee FSH/22/-/8
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