Fire Rated Roof Vents

Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas.

Fire rated roof vents.

Used in outer wall gable area. 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. 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. As seen on this old house vulcan vents are designed to be fire and ember safe.

Climate considerations should be taken into account when considering dormers. Today o hagin has local and national testing approvals. 14 x 12 inch flat front fire stop gable vent. 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.

Vulcan 14 wide x 12 inch high fire stopping vent with flat front flange face. 52 sqin net free venting area. For flush mount over wood etc. Self closing ridge soffit eave vents for fire protection.

Quick reference as well as more pics and info for dormer vents. The best ventilation solution for tile roof applications in areas where rain or snow may be a concern. Is recognized for its industry leading efforts in research development and testing. 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.

An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives. A strip vent in a soffited eave and frieze block vents in an open framed eave are shown here. 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. 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.

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. 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.