Fire Rated Roof Vents

Quick reference as well as more pics and info for dormer vents.

Fire rated roof vents.

As seen on this old house vulcan vents are designed to be fire and ember safe. An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives. Under eave soffit vents important airflow notes. 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.

Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas. Builders love this fully compliant roof ventilation system. 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. Climate considerations should be taken into account when considering dormers.

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. 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. 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. 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.

A strip vent in a soffited eave and frieze block vents in an open framed eave are shown here. The high quality aluminium based ventilator is preset to a continuous fixed speed and offers four additional speed settings automatic low medium and high to manage excess heat and dampness in the roof space providing a more comfortable and healthier home while complying with ventilator requirements for bushfire areas. 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. The best ventilation solution for tile roof applications in areas where rain or snow may be a concern.

A ridge vent and through roof vents can be seen on the roof of the building shown here. Vent a roof is easy to design in and install it is cyclone rated and meets fire and wind driven rain standards.