Fire Roof Vents

A strip vent in a soffited eave and frieze block vents in an open framed eave are shown here.

Fire roof vents.

Several vents have been accepted for use by the office of the state fire marshal these vents can be used in applications where ember and flame intrusion resistance is required. A gable end vent usually located just below the ridge of the roof. Gables like dormers are vertically oriented vents best placed as high as possible. The keepa attic vent is used for ventilating attics and or plenum as a roof exhaust vent or as an air intake roof vent.

It alleviates moisture in the winter and heat in the summer to extend roof membrane life. Do not use fiberglass or plastic mesh because they can melt and. When used in conjunction with lower soffit or eave vents rapid cooling and venting of the attic can take place. Retro fit kits upgrade existing vents to be fire and ember safe.

Cover all vent openings with 1 16 inch to 1 8 inch metal mesh. Although there are many different types of roof vents to choose from ensuring you have the right number of both. The building codes and building science for natural roof ventilation however only appeared in the 1940s. The keepa attic vent is built exclusively for flat roof ventilation roof pitch is 2 12 or less.

In a hot climate roof vents expel hot air from the roof or attic while relieving the load on the air conditioning system. The installation of roof vents is a crucial part of roof design because it allows for proper attic ventilation which may help prevent condensation and early aging of your roofing materials. Gable vents provide needed exhaust for hot air from attic space for many configurations. Quick reference as well as more pics and info for gable vents.

Roof ventilation in a cold climate vents moisture and ensures a cold roof temperature to avoid ice dams. Build your roof or re roof with materials such as composition metal or tile. Block any spaces between roof decking and covering to prevent embers from catching. Baffles along the front edges of the vent keep rain from entering and provide for a negative pressure region that helps pull air out of the attic.

These vents typically use a combination of screening and other design features such as baffles or intiumescent materials to resist intrusion of embers and flames. A ridge vent and through roof vents can be seen on the roof of the building shown here. Advantages of proper roofing ventilation. Installation is a snap.

These patented attic vents are accepted for use by many local fire officials for installation in wildland urban interface wui zones. A ridge vent as seen from the side of the roof is found along the entire ridge of the roof. Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas.