Fire Rated Roof Flashing

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.

Fire rated roof flashing.

The edge of the roof has thin metal flashing that helps water drip off the roof without damaging the home or causing a leak. Rubber electrical mast split pipe boot roof flashing in black model 81746 37 27 37 27. 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. The fire rating of a roof covering is either class a class b class c or unrated.

A standard fire test is used to determine the fire rating of a roof covering. A burning wooden block is placed on module as a fan blows at 12 mph. The ul tests under ul 790 evaluate the behavior of a roof covering under three fire hazards exposure of the roof to intermittent flame. View top sellers in.

Free delivery with 45 order. Gibraltar building products 11 in. Flame cannot be seen on underside of roof within 90 minutes. Roof covering packaging that encloses shingles or other roofing that have a fire rating will display the level of fire or wind resistance rating of the materials.

This test evaluates the following performance criteria. Ul 790 is a quality assurance service listing. Open valleys have metal flashing to protect this critical area of the roof.