Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly.
1 hour roof overhang assembly.
Does that mean we don t need an assembly.
Please help if you know.
Ibc table 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses.
I am constructing an icf house with a sip roof which will overhang the walls.
Overhangs can be open in which the trusses rafters and decking are exposed see figure 1 or enclosed by a soffit.
Soffits a soffit encloses the underside of sloped or flat roof overhangs.
These listings are short summaries to serve as a.
As a result users of the international residential code are looking to the international building code for compliance with the requirement.
No minimum joist size is given except that it needs to be adequate for structural loads.
Fire resistance assembly listed for roof eaves.
6 usg fire resistant assemblies test certiļ¬cation test conditions and fire and sound tested assemblies listed in this selector are based on characteristics properties and performance certificationof materials and systems obtained under controlled test conditions as set forth in the appropriate astm standard in effect at the time of test.
I am building a cottage with a wall right on my property line and the city wants the eaves to be 1 hour fire resistant.
Gypsum panel end joints located midway between continuous channels and attached to additional pieces of channels 54 1372 mm long with screws 12 305 mm o c.
The irc in table r302 1 1 only permits the 1 hr fire resistance construction on the underside.
On the east side of the house gable side i am within 3 feet of the property line and thus need a 1hr fire rated assembly for the fascia and soffit.
With 1 2 wood structural panels with.
An overhang protects the upper portion of the wall that it is attached to from rainfall and it also shades the windows under it from the sun.
The roof deck over the eves is 5 8 t g ridwoodi can anyone suggest what i can do at this point to meet this code requirement.
1 2 12 7 mm toughrock fireguard c or 1 2 12 7 mm densarmor plus fireguard c gypsum panel applied perpendicular to resilient channels 24 610 mm o c.
Just a couple 1 2 sheets of gypsum.
There is no 1 hr.
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Table 302 1 states that for projections between 2 and 5 we only need a 1 hour rating on the underside.
I am having trouble finding an assembly from ul or elsewhere.
Wood joists wood i joists floor trusses and flat or pitched roof trusses spaced a maximum 24 o c.
Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c.
Please come back again later.
Joined oct 25 2009 messages 10 782 location so.
