|Alettevoine||Дата: Воскресенье, 25 Авг 2013, 18:38 | Сообщение # 1|
|All of these doors, when closed, are good barriers to products of combustion. The gypsum core fire-rated door provides more resistance to fire than the http://kran.site90.com particle-board core fire-rated door. The nonfire-rated wood door provides minimal http://stroitel.webatu.com resistance to fire and will burn through during its testing before the minimum time required for any fire rating. |
We must remember during firefighting operations that any door can provide the building's occupants (and firefighters) with some protection against smoke and heat. Close doors that you find open unless they are needed for your exit, the passage of hoselines, or for ventilation.
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