Attic Dormer Vents Fire Resistant

Low profile dormers are often called eyebrow vents.

Attic dormer vents fire resistant.

Still o hagin has submitted testing information to osfm and has been accepted as an ember and flame resistant vent. 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. From entering through the vent into the roof. Dormer vent dormer vents allow heat to rise and escape out of the vent itself.

Designed to provide maximum airflow into the attic this roof dormer vent has a crimp less face and eliminates the need for sealant or solder. These patented attic vents are accepted for use by many local fire officials for installation in wildland urban interface wui zones. 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. Important for proper cooling of the attic dormer vents are a common entry point for embers.

Except for corrosion resistant metal language chapter 7a doesn t restrict through roof vents. 1 piece galvanized steel construction and lightweight with louver blades to deflect rain or snow. 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. There is a small screen inside the vent by the louvers to prevent rodents etc.

Types of ventilation venting in your roof system is quite important. 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. 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. Vent screens don t impede flame entry.

Galvanized wire mesh over the 12 in. It shows fire penetrating a frieze block vent with flames entering into what would be the attic. Quick reference as well as more pics and info for dormer vents. Our half round dormer vents are attractive long lasting and fire resistant.

Climate considerations should be taken into account when considering dormers. An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives. As seen on this old house vulcan vents are designed to be fire and ember safe. 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.

By replacing your existing vents with an embers out vent your home will have an added layer of protection from the elements. Half round dormers like the one below often are often called round dormers.