Fire Resistant Attic Vents

Model building code section s at issue.

Fire resistant attic vents.

When used in conjunction with lower soffit or eave vents rapid cooling and venting of the attic can take place. Low cost retrofit list roof. These patented attic vents are accepted for use by many local fire officials for installation in wildland urban interface wui zones. 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.

The roof is the most vulnerable part of your home. It shows fire penetrating a frieze block vent with flames entering into what would be the attic. 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.

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

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. An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives. 10 low cost retrofits to your home. Homes with wood or shingle roofs are at high risk of being destroyed during a wildfire.

Vent screens don t impede flame entry. Except for corrosion resistant metal language chapter 7a doesn t restrict through roof vents. Vents accepted by the osfm have provided testing information that was conducted by an accredited fire testing laboratory. 2007 cbc section 704a 2 attic ventilation.

For when re installing vents is impractical but you still want to fire proof your attic you need vulcan retrofits. Here are ways you can harden your home and make it more fire resistant. Build your roof or re roof with materials such as composition metal. By replacing your existing vents with an embers out vent your home will have an added layer of protection from the elements.