Fire Rated Attic Vents

As seen on this old house vulcan vents are designed to be fire and ember safe.

Fire rated attic vents.

This is a photograph from a test conducted in a fire research laboratory. When used in conjunction with lower soffit or eave vents rapid cooling and venting of the attic can take place. Gables like dormers are vertically oriented vents best placed as high as possible. 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.

Under eave soffit vents important airflow notes. It shows fire penetrating a frieze block vent with flames entering into what would be the attic. The intumescent coating is designed to quickly swell up and close off when exposed to high heat. Common 1 4 screens are ineffective and should be replaced or retrofitted.

Vulcan vents are the perfect fire stopping vent for your home. Vulcan vents are listed by the california state fire marshal under category 8165 of the building material listing program. Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas. Today o hagin has local and national testing approvals.

Approaching fire generates heat whichtriggers the vulcan vent to close. The conmpany s soffit and eaves vents prohibit flame intrusion through a structure s ventilation system. Alternatively cover all existing vent openings with 1 8 inch or 1 16 inch wire mesh. Use manufacured and ca approved vents see below to retrofit existing attic soffit basement foundation and gable vents where possible.

From its founding roots as a roofing company over 40 years ago o hagin has grown into a nationally recognized designer and producer of top quality state of the art attic ventilation solutions. Quick reference as well as more pics and info for gable vents. 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. O hagin universal direct deck attic vents this attic vent provides maximum net free ventilation area nfva and is designed for mop in or dry in applications using tile shingles slate or shake.

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