Fire Rated Roof Vents

An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives.

Fire rated roof vents.

Maestro bal smart bush fire rated roof ventilator csr bradford ventilation. This article describes products research on self closing soffit eaves ridge vents designed to reduce or stop the passage of embers into the roof cavity of a building through the building eaves or ridge during exposure of a building to nearby heat and fire from a forest fire brush fire or adjacent building fire. Dormers much like gables offer large areas of ventilation in a vertical orientation and are best when used as high up as possible on the roof. When a wildfire nears and the vent reaches the critical temperature the intumescent coating on the matrix structure expands creating an insulating barrier from fire and embers.

Self closing ridge soffit eave vents for fire protection. Several vents have been accepted for use by the office of the state fire marshal these vents can be used in applications where ember and flame intrusion resistance is required. Smart roof ventilator with bush fire rating up to bal 40. In addition to all the design construction features and color choices of the o hagin standard line this patent pending attic vent features an interior stainless steel diffuser that breaks down wind driven rain and snow before it can enter the attic space.

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. Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer. As seen on this old house vulcan vents are designed to be fire and ember safe. Climate considerations should be taken into account when considering dormers.

This is a photograph from a test conducted in a fire research laboratory. Under eave soffit vents important airflow notes. Quick reference as well as more pics and info for dormer vents. Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas.

The best ventilation solution for tile roof applications in areas where rain or snow may be a concern. It shows fire penetrating a frieze block vent with flames entering into what would be the attic. Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes.