Fire Rated Roof Vents

The core of our fire and ember safe vents are manufactured out of hi grade aluminum honeycomb and coated with an intumescent fire proof coating.

Fire rated roof 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. 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. Cover all vent openings with 1 16 inch to 1 8 inch metal mesh. Climate considerations should be taken into account when considering dormers.

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. Quick reference as well as more pics and info for dormer vents. Block any spaces between roof decking and covering to prevent embers from catching. Under eave soffit vents important airflow notes.

An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives. 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. Vents on homes create openings for flying embers. Build your roof or re roof with materials such as composition metal or tile.

The best ventilation solution for tile roof applications in areas where rain or snow may be a concern. The intumescent coating is designed to quickly swell up and close off when exposed to high heat. As seen on this old house vulcan vents are designed to be fire and ember safe. Vulcan vents are the perfect fire stopping vent for your home.

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. Do not use fiberglass or plastic mesh because they can melt and. The prices of roof vents also go up when manufacturers add extra features to the vents. This is a photograph from a test conducted in a fire research laboratory.

It shows fire penetrating a frieze block vent with flames entering into what would be the attic. 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.