Fire Resistant Roof And Eave Detail

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.

Fire resistant roof and eave detail.

10 low cost retrofits to 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. 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.

The eave is the part of the roof that extends out beyond the exterior wall. Noncombustible or fire resistant materials. H e n o t md b. U b l p t e h is mo t s l e ive d c g o o.

Typical construction materials for eaves overhangs and soffits are not fire resistant and are therefore susceptible to ignition by embers and hot gases. Build your roof or re roof with materials such as composition metal. These include boxing in and using open framing open eave. For eave vents follow the guidance in vents.

When you use option a or b above you will need to provide additional roof venting. Guidance document ignition resistant eaves. Roof eaves overhangs are a fire hazard but they can be protected with an encasement of fire resistant material. The roof is the most vulnerable part of your home.

Once an eave overhang or soffit has ignited fire can spread onto the roof into the attic or onto and through the exterior wall. Home escondido fire department. Since this assembly has been rated as fire resistant in the building code there have. Exposed fire retardant treated wood fascia.

Homes with wood or shingle roofs are at high risk of being destroyed during a wildfire. There are two ways to detail the underside of the eave the intersection between the exterior wall and the roof. Embers and hot gases from fire exterior wall cladding fascia gutter rafter underside of roof deck figure 3. County of san diego planning development services.

2x backing block.