Fire Resistant Roof And Eave Detail

Exposed fire retardant treated wood fascia.

Fire resistant roof and eave detail.

When you use option a or b above you will need to provide additional roof venting. Noncombustible or fire resistant materials. These include boxing in and using open framing open eave. 10 low cost retrofits to your home.

The roof is the most vulnerable part of your home. County of san diego planning development services. U b l p t e h is mo t s l e ive d c g o o. Stucco is often recommended as one of the best materials for boxing in hazardous eaves.

The eave is the part of the roof that extends out beyond the exterior wall. Roof eaves overhangs are a fire hazard but they can be protected with an encasement of fire resistant material. Here are ways you can harden your home and make it more fire resistant. Embers and hot gases from fire exterior wall cladding fascia gutter rafter underside of roof deck figure 3.

Low cost retrofit list roof. Guidance document ignition resistant eaves. There are two ways to detail the underside of the eave the intersection between the exterior wall and the roof. 2x backing block.

Once an eave overhang or soffit has ignited fire can spread onto the roof into the attic or onto and through the exterior wall. For the fascia use noncombustible or fire resistant materials e g fire retardant treated lumber fiber cement board. Homes with wood or shingle roofs are at high risk of being destroyed during a wildfire. H e n o t md b.

For eave vents follow the guidance in vents. Build your roof or re roof with materials such as composition metal. 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. An enclosed overhang with a horizontal soffit.

Typical construction materials for eaves overhangs and soffits are not fire resistant and are therefore susceptible to ignition by embers and hot gases.