Fireproof Attic Vents

Common 1 4 screens are ineffective and should be replaced or retrofitted.

Fireproof attic vents.

Copper as well as a variety of pre. This attic vent provides maximum airflow 72 square inches of net free ventilation area nfva without detracting from the aesthetics of the roof design. The vent is made of an elongate strip of ventilation material providing a plurality of ventilation passageways therethrough permitting air flow therethrough. As seen on this old house vulcan vents are designed to be fire and ember safe.

Gables like dormers are vertically oriented vents best placed as high as possible. Build your roof or re roof with materials such as composition metal or tile. Cover all vent openings with 1 16 inch to 1 8 inch metal mesh. The function of the vents is to remove excess moisture from those spaces.

Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas. An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives. Quick reference as well as more pics and info for gable vents. Alternatively cover all existing vent openings with 1 8 inch or 1 16 inch wire mesh.

Vulcan vents are the perfect fire stopping vent for your home. Moisture can enter the crawl space from the soil or through the foundation wall from the surrounding landscape. Patent application 11 875 034 filed october 19 2007. Roof and crawl space vents are required by most building codes.

Conforms to federal specification qq. 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. 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 can also enter the attic space if you have a roof leak.

A balanced ventilation system 50 intake ventilation combined with 50 exhaust ventilation can also lower utility bills. Use manufacured and ca approved vents see below to retrofit existing attic soffit basement foundation and gable vents where possible. Ember and fire resistant vent u s. When used in conjunction with lower soffit or eave vents rapid cooling and venting of the attic can take place.

An air intake or exhaust vent for an external roof or wall of a building. Block any spaces between roof decking and covering to prevent embers from catching. This is a photograph from a test conducted in a fire research laboratory. The intumescent coating is designed to quickly swell up and close off when exposed to high heat.

Do not use fiberglass or plastic mesh because they can melt and.