Venting A Metal Roof Fire

To vent or not to vent a metal roof october 2 2017 filed under.

Venting a metal roof fire.

Ventilation that meets code requirements is adequate for any type of roofing material including metal. The building codes and building science for. A metal roof typically does not increase nor decrease the need for ventilation. It shows fire penetrating a frieze block vent with flames entering into what would be the attic.

How do you vent a metal roof. 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. We do need to mention though one very rare scenario we have seen just a couple of times over our 35 years.

Vent roofs with steeples towers or cupolas can be found in different buildings from barns to cathedrals. This is a photograph from a test conducted in a fire research laboratory. Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas. Roof ventilation depends on the simple scientific fact that hot air rises.