Fire Rated Roof Vents

These vents typically use a combination of screening and other design features such as baffles or intiumescent materials to resist intrusion of embers and flames.

Fire rated roof vents.

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. Quick reference as well as more pics and info for dormer vents. As seen on this old house vulcan vents are designed to be fire and ember safe. 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.

Under eave soffit vents important airflow notes. Maestro bal smart bush fire rated roof ventilator csr bradford ventilation. It shows fire penetrating a frieze block vent with flames entering into what would be the attic. Removal of roof space heat and the management of moisture and damaging condensation.

An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives. 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. Smart roof ventilator with bush fire rating up to bal 40. This is a photograph from a test conducted in a fire research laboratory.

Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas. Climate considerations should be taken into account when considering dormers. Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer. 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.

Self closing ridge soffit eave vents for fire protection. Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes. 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.