Roof Ice And Snow Barrier

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.

Roof 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. Overhang and a 2 6 exterior wall. Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen. 59 3 8 inches up the roof slope from the drip edge.

6 pitch roof with a 12 in. Install the ice barrier membrane according to the manufacturer s instructions with the drip edge installed on top of the membrane. 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. A couple of examples of how far up the slope of the roof the ice barrier membrane must be installed.

Ft 5003002 the home depot. By creating a barrier at the most vulnerable areas of your roof at the eaves and rakes in valleys around chimneys etc weatherwatch leak barrier will help prevent leaks due to water backing up in your gutters wind driven rain and in the north damaging ice dams. Weatherlock flex flexible self sealing ice water barrier provides excellent roof deck protection against water infiltration resulting from the freeze thaw cycle wind driven rains and normal water flow around eaves rakes valleys vents chimneys and skylights. Comes in black color family.

Roofing materials that do require an ice barrier are. 8 pitch roof with a 12 in. Overhang and a 2 6 exterior wall. 50 1 2 inches up the roof slope from the drip edge.

12 pitch roof with a 12 in. 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. Gcp applied technologies grace ice and water shield 36 in. Overhang and a 2 6 exterior wall.

Protect your roof from harsh weather conditions by using this grace ice and water shield roll roofing underlayment. Roll self adhered roofing underlayment 225 sq.