Fire Rated Roof Eaves

Eaves are the overhanging ledges of a roof and are usually diagonal.

Fire rated roof eaves.

Roof eaves overhangs are a fire hazard but they can be protected with an encasement of fire resistant material. Enclose overhangs with soffits that have 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. Stop fire and stay stylish. Eaves without suffixes or with rt are for rafter and truss installation where spacing is commonly imprecise.

Everything you wanted to know about fire rated construction but were afraid to ask. If exterior rated fire retardant products were used in the assembly plywood sheathing 2x rafter tails and blocking the assembly would comply because ignition resistant materials were used. A one inch 2 54 centimeter layer of stucco can easily lend a 1 hour fire rating to a wall source. Many of our eaves use a drop in style with wings that can be adjusted to your material and cut out size and are horizontally oriented.

Where when and how to determine if you need it. 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. Under eave soffit vents important airflow notes. Use flat horizontal soffits see figure 3 instead of attaching the soffits to the sloped joists which creates sloped soffits.

Flame ember resistant vents naturally provide less airflow than regular unprotected vents and brandguard vent airflow ratings nfva are approximately 30 that of the same size standard 1 4 screened vent and are listed within each products description.