1 Hour Roof Overhang Assembly

As a result users of the international residential code are looking to the international building code for compliance with the requirement.

1 hour roof overhang assembly.

Does that mean we don t need an assembly. 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. There is no 1 hr. Ibc table 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses.

Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c. With 1 25 mm type s drywall screws 12 305 mm o c. Please help if you know. No minimum joist size is given except that it needs to be adequate for structural loads.

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. Overhangs can be open in which the trusses rafters and decking are exposed see figure 1 or enclosed by a soffit. 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. 6 usg fire resistant assemblies test certification 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.

Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly. Fire resistance assembly listed for roof eaves. Please come back again later. Joined oct 25 2009 messages 10 782 location so.

The irc in table r302 1 1 only permits the 1 hr fire resistance construction on the underside. 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. Just a couple 1 2 sheets of gypsum. I am constructing an icf house with a sip roof which will overhang the walls.

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. Our site is temporarily disabled. Table 302 1 states that for projections between 2 and 5 we only need a 1 hour rating on the underside. With 1 2 wood structural panels with.

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. 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. Soffits a soffit encloses the underside of sloped or flat roof overhangs.