Fire Rated Roof Vents

Used in outer wall gable area.

Fire rated roof vents.

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. This article describes products research on self closing soffit eaves ridge vents designed to reduce or stop the passage of embers into the roof cavity of a building through the building eaves or ridge during exposure of a building to nearby heat and fire from a forest fire brush fire or adjacent building fire. 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. The best ventilation solution for tile roof applications in areas where rain or snow may be a concern.

The vulcan vents are the only fire resistant vents that meet both the wildland urban interface wui and the one 1 hour fire test standards for the exterior of buildings all while providing the proper amount of ventilation to attic and crawl spaces in building structures. Self closing ridge soffit eave vents for fire protection. Shipping leadtime 1 4 business days 72 00 sale 54 95. 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.

Climate considerations should be taken into account when considering dormers. A ridge vent and through roof vents can be seen on the roof of the building shown here. In addition to all the design construction features and color choices of the o hagin standard line this patent pending attic vent features an interior stainless steel diffuser that breaks down wind driven rain and snow before it can enter the attic space. Vulcan 14 wide x 12 inch high fire stopping vent with flat front flange face.

Today o hagin has local and national testing approvals. Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas. As seen on this old house vulcan vents are designed to be fire and ember safe. A strip vent in a soffited eave and frieze block vents in an open framed eave are shown here.

14 x 12 inch flat front fire stop gable vent. For flush mount over wood 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. 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.

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 dormer vents.