Attic Dormer Vents Fire Resistant

Types of ventilation venting in your roof system is quite important.

Attic dormer vents fire resistant.

These patented attic vents are accepted for use by many local fire officials for installation in wildland urban interface wui zones. Our half round dormer vents are attractive long lasting and fire resistant. Rough opening prevents birds and large insects from entering attic space. 1 piece galvanized steel construction and lightweight with louver blades to deflect rain or snow.

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. By replacing your existing vents with an embers out vent your home will have an added layer of protection from the elements. 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.

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. Galvanized wire mesh over the 12 in. Half round dormers like the one below often are often called round dormers. Low profile dormers are often called eyebrow vents.

Important for proper cooling of the attic dormer vents are a common entry point for embers. Still o hagin has submitted testing information to osfm and has been accepted as an ember and flame resistant vent. As seen on this old house vulcan vents are designed to be fire and ember safe. Except for corrosion resistant metal language chapter 7a doesn t restrict through roof vents.

Dormer vent dormer vents allow heat to rise and escape out of the vent itself. Climate considerations should be taken into account when considering dormers. 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. It shows fire penetrating a frieze block vent with flames entering into what would be the attic.

There is a small screen inside the vent by the louvers to prevent rodents etc. 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. An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives. Vents accepted by the osfm have provided testing information that was conducted by an accredited fire testing laboratory.

From entering through the vent into the roof. Quick reference as well as more pics and info for dormer vents.