Wui Approved Roof Vents

These new guidelines are also mentioned in chapter 49 of the california fire code.

Wui approved roof vents.

Cbc 708a crc r337 8. Continuous vents for soffits in stucco wood construction foam stucco or retro fits. The o hagin patented tapered low profile attic vents offer the best ventilation solution for composition shingle slate and shake roof applications. Eave vents are available in 3 5 x 22 5 5 x 22 3 5 x 14 5 5 x 14 as well as in round configurations.

The vulcan vents are the only fire resistant vents that meet both the wildland urban interface wui and the one 1 hour fire test standards for the exterior of buildings all while providing the proper amount of ventilation to attic and crawl spaces in building structures. Combustible vents on top of roofs may be covered with this material to comply. Vents in soffits eaves or overhangs areas shall be an approved venting device only. A strip vent in a soffited eave and frieze block vents in an open framed eave are shown here.

Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas. Dormer vents are half round low profile and dormer retro fit kits are available. Windows and exterior doors. Common 1 4 screens are ineffective and should be replaced or retrofitted.

Alternatively cover all existing vent openings with 1 8 inch or 1 16 inch wire mesh. I n chapter 7a of the california building code it is now required by law that new homes constructed in the wui wildland urban interface have ember and fire safe vents. These attic vents have been tested and shown to resist the intrusion of wind drive flames and burning embers and additionally are accepted for use by many local fire officials for installation in wui areas. The enforcing agency may accept or approve special eave and cornice vents that resist the intrusion of flame and burning embers.

A ridge vent and through roof vents can be seen on the roof of the building shown here. Use manufacured and ca approved vents see below to retrofit existing attic soffit basement foundation and gable vents where possible.