Fire Resistant Attic Vents

Low cost retrofit list roof.

Fire resistant attic vents.

Still o hagin has submitted testing information to osfm and has been accepted as an ember and flame resistant vent. 2007 cbc section 704a 2 attic ventilation. Fire officials later told booster that while flames didn t engulf his home from the outside hot embers likely flew into the soffit vents the holes in the wood under the roof allowing an attic to. Model building code section s at issue.

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. As seen on this old house vulcan vents are designed to be fire and ember safe. Ember and wildfire resistant vulcan vents. The roof is the most vulnerable part of your home.

For when re installing vents is impractical but you still want to fire proof your attic you need vulcan retrofits. See our retrofits and subflashings. Wind blown embers can also enter through vents and depending on the ember size and quantity and the amount of combustible materials in the attic or crawl space ignitions can occur. 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. 10 low cost retrofits to your home. By replacing your existing vents with an embers out vent your home will have an added layer of protection from the elements. Vents accepted by the osfm have provided testing information that was conducted by an accredited fire testing laboratory.

Fire protection vents and filters prevent fire embers wind driven rain dust debris and nesting animals and rodents from entering your home through the attic vent. Except for corrosion resistant metal language chapter 7a doesn t restrict through roof vents. Here are ways you can harden your home and make it more fire resistant. An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives.

Here are excerpts from that code and part of a discussion of the absence of a method of acceptance for special eave vents and a resolution that permits use of a fire resistant soffit vent from vulcan technologies. When used in conjunction with lower soffit or eave vents rapid cooling and venting of the attic can take place. 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. Vent screens don t impede flame entry.