Fire Rated Roof Flashing

The fire rating of a roof covering is either class a class b class c or unrated.

Fire rated roof flashing.

Rubber electrical mast split pipe boot roof flashing in black model 81746 37 27 37 27. Free delivery with 45 order. Open valleys have metal flashing to protect this critical area of the roof. Roof covering roof covering products are given a fire class rating of a b or c based on their tested fire resistance.

Flame cannot be seen on underside of roof within 90 minutes. A burning wooden block is placed on module as a fan blows at 12 mph. The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. A standard fire test is used to determine the fire rating of a roof covering.

While some skylight manufacturers include flashing in their products sometimes roofing professionals have to create it or purchase it separately. Ul 790 is a quality assurance service listing. This test evaluates the following performance criteria. An unrated roof is the most vulnerable the most common example of an unrated roof covering is one made using non fire retardant treated wood shakes or shingles.

1 flame penetration through the roof covering into the attic space 2 flame spread over the surface of the roof covering and 3 the propensity for the roof covering to become dislodged and generate embers. Set your store to see local availability add to cart. View top sellers in.