Roofing Ice And Snow Barrier

Overhang and a 2 6 exterior wall.

Roofing ice and snow barrier.

Ice and water protector sometimes also referred to as ice and water shield is a waterproof roof underlayment membrane developed to protect vulnerable areas on a roof from ice and water damage. It seals itself around the nails used in shingling. An ice and water shield is a modified self adhered leak barrier. 6 pitch roof with a 12 in.

Roofing materials that do require an ice barrier are. Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen. Find roof ice water barriers at lowe s today. Asphalt shingles metal roof shingles mineral surfaced roll roofing slate and slate type shingles wood shingles and wood shakes though not called out in r905 1 2 pv roof shingles and building integrated pv roof panels do require an ice barrier and that is noted under the subsections for those materials.

50 1 2 inches up the roof slope from the drip edge. In areas where there has been a history of ice forming along the eaves causing a backup of water an ice barrier that consists of at least two layers of underlayment cemented together or of a self adhering polymer modified bitumen sheet shall be used in lieu of normal underlayment and extend from the lowest edges of the roof surfaces to the point at least 24 inches inside the exterior wall line of the building. Then install regular roofing underlayment tar paper over the top of the drip edge and over the ice barrier and continuing all the way up the roof. 59 3 8 inches up the roof slope from the drip edge.

Install the ice barrier membrane according to the manufacturer s instructions with the drip edge installed on top of the membrane. It comes in a sheet with split back release film similar to a self stick or peel and stick. 12 pitch roof with a 12 in. 8 pitch roof with a 12 in.

A couple of examples of how far up the slope of the roof the ice barrier membrane must be installed. Overhang and a 2 6 exterior wall. This rubberized material that helps to prevent leaks due to.