Fire Vents In Roof

This is a photograph from a test conducted in a fire research laboratory.

Fire vents in roof.

Retro fit kits upgrade existing vents to be fire and ember safe. Roof ventilation in a cold climate vents moisture and ensures a cold roof temperature to avoid ice dams. Vents on homes create openings for flying embers. Gable vents provide needed exhaust for hot air from attic space for many configurations.

Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas. In a hot climate roof vents expel hot air from the roof or attic while relieving the load on the air conditioning system. Ibc 910 heat smoke vents ibc 410 stages platforms ibc 3004 hoistway vents. What do the fb suffixes mean.

Roof top smoke vents automatically open to release heat smoke and noxious fumes in the event of a fire emergency as required by international building code. Under eave soffit vents. Installation is a snap. A ridge vent as seen from the side of the roof is found along the entire ridge of the roof.

Cover all vent openings with 1 16 inch to 1 8 inch metal mesh. Although there are a now few vents that have been accepted for use by the california osfm a design that incorporates two sets of through roof vents one set for inlet air located near the roof edge and another for outlet air located near the ridge as shown here has been used. Block any spaces between roof decking and covering to prevent embers from catching. A gable end vent usually located just below the ridge of the roof.

A through roof or eye brow vent usually located near the ridge or peak of the roof but can be located anywhere on the roof surface. With a flange that is about 3 4 recessed back so that when the vent is installed the stucco application will be flush with the front of the vent. Build your roof or re roof with materials such as composition metal or tile. It shows fire penetrating a frieze block vent with flames entering into what would be the attic.

It has a flange recessed 1 1 2 back so that when the vent is installed the stucco foam application will be flush with the front of the vent. The best ventilation solution for tile shingle slate or shake roofs in areas where rain or snow may be a concern. Soffit vents are available for stucco wood construction foam stucco or retro fit applications. These patented attic vents feature an interior stainless steel diffuser that breaks down wind driven rain and snow before it can enter the attic.

Do not use fiberglass or plastic mesh because they can melt and burn. Flame ember resistant vents naturally provide less airflow than regular unprotected vents and brandguard vent airflow ratings nfva are approximately 30 that of the same size standard 1 4 screened vent and are listed within each products description.