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.
Attic draftstop required.
Basically any structure built or remolded since the early 1970s needs to have draft stopping every 3 000 square feet of attic space.
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2 if the assembly isn t concealed an open floor ceiling assembly above a basement draftstoppingisn t required.
Draftstopping is not required if the attic is protected by an approved supervised automatic sprinkler system.
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.
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.
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.
An nfpa 13r sprinkler system is allowed per ibc section 903 3 1 2.
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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.
There are some points to be made about the draftstoppingrequirements.
If you want a draft stop panel that features a drywall bead flange exposed flange and plaster bead flange our line of babcock davis panels will be more suited for you.
1 if there is no useable space above the assembly an attic or below it a crawlspace draftstoppingisn t required.
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Draftstopping is not required in buildings equipped throughout with an automatic sprinkler system in accordance with section 903 3 1 1.