Fire Resistant Roof And Eave Detail

County of san diego planning development services.

Fire resistant roof and eave detail.

Noncombustible or fire resistant materials. For eave vents follow the guidance in vents. Roof eaves overhangs are a fire hazard but they can be protected with an encasement of fire resistant material. The eave is the part of the roof that extends out beyond the exterior wall.

U b l p t e h is mo t s l e ive d c g o o. Build your roof or re roof with materials such as composition metal. These include boxing in and using open framing open eave. 2x backing block.

Home escondido fire department. Stucco is often recommended as one of the best materials for boxing in hazardous eaves. The roof is the most vulnerable part of your home. An enclosed overhang with a horizontal soffit.

For the fascia use noncombustible or fire resistant materials e g fire retardant treated lumber fiber cement board. Embers and hot gases from fire exterior wall cladding fascia gutter rafter underside of roof deck figure 3. When you use option a or b above you will need to provide additional roof venting. Once an eave overhang or soffit has ignited fire can spread onto the roof into the attic or onto and through the exterior wall.

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. Homes with wood or shingle roofs are at high risk of being destroyed during a wildfire. Here are ways you can harden your home and make it more fire resistant. There are two ways to detail the underside of the eave the intersection between the exterior wall and the roof.

Guidance document ignition resistant eaves. Typical construction materials for eaves overhangs and soffits are not fire resistant and are therefore susceptible to ignition by embers and hot gases. Since this assembly has been rated as fire resistant in the building code there have. Low cost retrofit list roof.

Exposed fire retardant treated wood fascia.