delaying heat = fire rated ?
delaying heat = fire rated ?
(OP)
Article 11.1.2 (1) (NFPA-13, ed.2007) can be read as : " Where areas are not physically separated by a barrier or partition capable of delaying heat from a fire in one area from fusing sprinklers in the adjacent area, the required sprinkler protection for the more demanding design basis shall extend 15 ft (4.6 m) beyond its perimeter. "
Does that barrier need to be fire rated? At first sight, I would say no because NFPA does not mention such thing. But, if the partition is not fire rated, it would mean that it cannot prevent fire entering other room for a certain amount of time.
What do you think? Would a typical gypsum wall arrangement be enough to meet article 11.1.2?
Thank you for your replies.
Does that barrier need to be fire rated? At first sight, I would say no because NFPA does not mention such thing. But, if the partition is not fire rated, it would mean that it cannot prevent fire entering other room for a certain amount of time.
What do you think? Would a typical gypsum wall arrangement be enough to meet article 11.1.2?
Thank you for your replies.





RE: delaying heat = fire rated ?
It appears that the section just wants the heat slowed down.
the wording for high piled stock is "permanent partition"
and how often does this condition actualy occur???
Maybe not worded to well???
RE: delaying heat = fire rated ?
http://www.smokeandfireprevention.com/curtain.htm
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