Fire Resistant Roof And Eave Detail

Build your roof or re roof with materials such as composition metal.

Fire resistant roof and eave detail.

County of san diego planning development services. The roof is the most vulnerable part of your home. Roof eaves overhangs are a fire hazard but they can be protected with an encasement of fire resistant material. Once an eave overhang or soffit has ignited fire can spread onto the roof into the attic or onto and through the exterior wall.

2x backing block. Here are ways you can harden your home and make it more fire resistant. 10 low cost retrofits to your home. Since this assembly has been rated as fire resistant in the building code there have.

Roof eave fire resistance rating shall be permitted to be reduced to 0 hours on the underside of the eave provided no gable vent openings are installed. These include boxing in and using open framing open eave. Home escondido fire department. Exposed fire retardant treated wood fascia.

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. Typical construction materials for eaves overhangs and soffits are not fire resistant and are therefore susceptible to ignition by embers and hot gases. Homes with wood or shingle roofs are at high risk of being destroyed during a wildfire. U b l p t e h is mo t s l e ive d c g o o.

Embers and hot gases from fire exterior wall cladding fascia gutter rafter underside of roof deck figure 3. For eave vents follow the guidance in vents. An enclosed overhang with a horizontal soffit. There are two ways to detail the underside of the eave the intersection between the exterior wall and the roof.

Noncombustible or fire resistant materials. Stucco is often recommended as one of the best materials for boxing in hazardous eaves. Guidance document ignition resistant eaves. For the fascia use noncombustible or fire resistant materials e g fire retardant treated lumber fiber cement board.

The eave is the part of the roof that extends out beyond the exterior wall.