BS 476-3:2004 2007
$102.76
Fire tests on building materials and structures – Classification and method of test for external fire exposure to roofs
| Published By | Publication Date | Number of Pages |
| BSI | 2007 | 16 |
The tests given in this British Standard are designed to enable measurement of:
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capacity of a representative section of a roof to resist penetration by fire when the external surface is exposed to radiation and flame; and
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distance of the spread of flame on the outer surface of the roof covering under certain conditions.
Roofs are graded according to the angle at which they are tested, the time for which they resist penetration by fire, and the distance of superficial spread of flame on their external surface.
#An additional test for rooflights is given in Annex C.$
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible for this British Standard |
| 3 | Contents |
| 5 | 1 Scope 2 Normative references 3 Terms and definitions penetration by fire non-combustible 4 Classification 4.1 Roof system 4.2 Fire resistance of roof system |
| 6 | 5 Three stage test method incorporating burning brands, wind and supplementary radiant heat 5.1 Apparatus |
| 7 | 5.2 Calibration 5.3 Test conditions 5.4 Test specimen 5.5 Conditioning 5.6 Test environment 5.7 Test procedure |
| 8 | 5.8 Observations and measurements |
| 9 | 5.9 Test report |
| 10 | (informative) Apparatus for roof test (informative) Apparatus for roof test Typical roof test apparatus |
| 11 | Instrument locations for the calibration element |
| 12 | Specimen holder |
| 13 | Specimen holder |
| 14 | (informative) Intensity of radiated heat on specimen (informative) Intensity of radiated heat on specimen Intensity of radiated heat |
