Fire Rated Roof Vent Intake

Each vent has 16 sq.

Fire rated roof vent intake.

Smartvent is rated at 9 nfa ft. Alternatively cover all existing vent openings with 1 8 inch or 1 16 inch wire mesh. Ember and fire resistant vent u s. Caruso george and bill hendricks.

Use manufacured and ca approved vents see below to retrofit existing attic soffit basement foundation and gable vents where possible. Class a fire rated. Patent application 11 875 034 filed october 19 2007. Is recognized for its industry leading efforts in research development and testing.

The inflow vent is an ideal solution for roofs without soffits or used as a supplemental intake on roofs requiring additional ventilation. Available with and without nails. 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 air intake or exhaust vent for an external roof or wall of a building.

Accommodates roof pitches from 3 12 to 16 12. An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives. We have been using smartvent for years as a great solution for inadequate ventilation on our customer s homes. The best ventilation solution for tile roof applications in areas where rain or snow may be a concern.

Today o hagin has local and national testing approvals. From its founding roots as a roofing company over 40 years ago o hagin has grown into a nationally recognized designer and producer of top quality state of the art attic ventilation solutions. This is a photograph from a test conducted in a fire research laboratory. 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 shows fire penetrating a frieze block vent with flames entering into what would be the attic. Smartvent also satisfies all ridge vent and exhaust vent requirements. Common 1 4 screens are ineffective and should be replaced or retrofitted. Patent numbers 6 212 833 6 447 392 issued by the united states patent trademark office.

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. Wind driven rain resistant to 110 mph. Of vent opening you have to also adjust the calculation for the degree to which the vent opening is obstructed by mesh screening and any other airflow obstructions such as under sized cuts into the roof deck.

Louver openings are sized to minimize insect infiltration and windblown debris. Of net free area per linear foot.