1 Hour Roof Overhang Assembly

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.

1 hour roof overhang 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. Does that mean we don t need an assembly. 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. Joined oct 25 2009 messages 10 782 location so.

No minimum joist size is given except that it needs to be adequate for structural loads. The roof is framed with 2 i 6 joists with a 1 foot protrusion on the side in question. 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. I am having trouble finding an assembly from ul or elsewhere.

Please come back again later. Overhangs can be open in which the trusses rafters and decking are exposed see figure 1 or enclosed by a soffit. These listings are short summaries to serve as a. Ibc table 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses.

Table 302 1 states that for projections between 2 and 5 we only need a 1 hour rating on the underside. Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c. As a result users of the international residential code are looking to the international building code for compliance with the requirement. The irc in table r302 1 1 only permits the 1 hr fire resistance construction on the underside.

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. Please help if you know. Our site is temporarily disabled. 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. Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly. There is no 1 hr. 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.

Feb 23 2014 2. I am constructing an icf house with a sip roof which will overhang the walls. Just a couple 1 2 sheets of gypsum. Soffits a soffit encloses the underside of sloped or flat roof overhangs.