Venting A Metal Roof Fire

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Venting a metal roof fire.

Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas. To vent or not to vent a metal roof october 2 2017 filed under. Home ventilation metal roofing venting can sometimes be a good way to get things off of our chest but when it comes to home construction venting can be a great way to get hot air and moisture out of our attic. The idea of roof vents existed for hundreds of years with natural vents employed in chinese buildings during the tang dynasty natural ventilation ducts in the buddhist monks caves and wind catchers incorporated in arabian architecture.

Hot air beneath the metal needs an escape route near the top of the roof and intake vents at the. Ventilation that meets code requirements is adequate for any type of roofing material including metal. Roof ventilation depends on the simple scientific fact that hot air rises. How do you vent a metal roof.

We do need to mention though one very rare scenario we have seen just a couple of times over our 35 years. This is a photograph from a test conducted in a fire research laboratory. How do ventilation methods affect installation and roof design. It shows fire penetrating a frieze block vent with flames entering into what would be the attic.