1 Hour Fire Rated Roof Eave Detail

Fire resistance rating minimum fire separation distance not allowed n a 2 feet fire resistance rated 1 hour on the underside a b 2 feet to 5 feet projections not fire resistance rated 0 hours 5 feet n a not applicable.

1 hour fire rated roof eave detail.

According to r302 1 the projection not the wall has to be fire rated. Fire resistance rated 1 hour on the underside. Not allowed n a 3 feet 25 maximum of wall area per story. Of 1 hr fire rated construction with no openings exterior walls located less than 3 feet from a property line must be of 1 hr fire rated construction with no openings no eave is allowed on a house when the wall is 2 or less to the property line however a detached garage structure may have a 4 maximum eave.

Fire safety caution passing a fire test in a controlled laboratory setting and or certifying or labeling a product as having a one hour two hour or any other fire resistance or protection rating and therefore as acceptable for use in certain fire rated assemblies systems does not mean that either a particular assembly system. Roof eave fire resistance rating shall be permitted to be reduced to 0 hours on the underside of the eave if. Everything you wanted to know about fire rated construction but were afraid to ask. For more information on eave construction or other fire code requirements please refer to the county s wildland urban interface summary document pds 664 or contact the county s building department fire services division at 858 565 5920.

Use flat horizontal soffits see figure 3 instead of attaching the soffits to the sloped joists which creates sloped soffits. A minimum 1 hour fire resistance rating to prevent embers and hot gases from making contact with the joists rafters or trusses or the underside of the roof decking. There are no lot lines. Where when and how to determine if you need it.

Roof eave fire resistance rating shall be permitted to be reduced to 0 hours on the.