Attic Draftstop Required

There are some points to be made about the draftstoppingrequirements.

Attic draftstop required.

Draftstopping is not required in buildings equipped throughout with an automatic sprinkler system in accordance with section 903 3 1 1. Draftstopping shall be installed in attics and concealed roof spaces such that any horizontal area does not exceed 3 000 square feet 279 m 2. Draftstopping is not required if the attic is protected by an approved supervised automatic sprinkler system. An nfpa 13r sprinkler system is allowed per ibc section 903 3 1 2.

Los angeles residential code 5 floors r502 wood floor framing r502 12 draftstopping required 718 4 2 fire and smoke protection features groups r 1 and r 2 draftstopping shall be provided in attics mansards overhangs or other concealed roof spaces of group r 2 buildings with three or more dwelling. Basically any structure built or remolded since the early 1970s needs to have draft stopping every 3 000 square feet of attic space. If the apartment building you are inspecting is over 3000 square feet you will need to check for draft stops by looking into the attic space. As a rule any apartment building with an attic space of less than 3000 square feet or a height of less than 30 inches does not require draft stopping.

18137782015163 com building products and industry topics. Icc region ii safety 2 r cuppy the next generation last post. 2 if the assembly isn t concealed an open floor ceiling assembly above a basement draftstoppingisn t required. The current requirement of draft stops being required in attics larger than 3 000 square feet was included in the 1970 code adopted by the city of austin on dec.

3 if draftstoppingis required the 1 000 sflimit applies but the divided spaces must be approximately equal. Jimgillettewy gov building products and industry topics. If you need an attic access door draft stop don t hesitate to call us at 1 800 609 2917 or for other products check out our entire product line. What are you waiting for.

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