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FIRE SERVICE AND GENERAL FIRE SAFETY TOPICS => Fire Safety => Topic started by: SeaBass on July 06, 2011, 06:59:48 PM
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Does anyone know when the requirment for cold smoke seals on fire doors opening into protected escape routes in schools was first introduced?
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There is no requirement for strips and or seals on any doors.
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As piglet says there is no legal requirement but BB 100 does recommend "2.5.10 Fire doors. Any door in a fire-resisting or compartment wall
will be a fire door, designed to resist the passage of fire and smoke" (when closed). If you can get hold of BB 7 the previous guide there may be a similar recommendation and this guide goes back to the 1960,s if not before.
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BB7 5th edition 1975 designated doors types 1,2 and 3 in accordance with CP3 chapter 4 parts 2 and 3 (1968)
For example in BB7 5th edition 1975 smoke stop doors across corridors were type 2 doors and were to be provided with 25mm rebates. It does refer to the BS476 test for fire doors presumably at that time that would have been BS 476:Part 8:1972. Now that seems contradictory because if I recall BS476 part 8 incorporated a positive pressure in the furnace and a door would require an intumescent seal to pass this test.
Definately no smoke seals though because these did not appear till the early 1980s.