Use flat horizontal soffits see figure 3 instead of attaching the soffits to the sloped joists which creates sloped soffits.
1 hour fire rated roof eave detail.
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.
Roof eave fire resistance rating shall be permitted to be reduced to 0 hours on the.
A b 2 feet to 5 feet not fire resistance rated 0 hours 5 feet openings in walls.
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.
According to r302 1 the projection not the wall has to be fire rated.
Fire resistance rated 1 hour on the underside.
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.
Not allowed n a 3 feet 25 maximum of wall area per story.
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.
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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.