Roofing Water Ice Barrier

They are the low points that carry the most water.

Roofing water ice 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 is smart to install water and ice barrier. 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. Ice and water barrier is a self adhering rubberized membrane that protects your roof from leaking due to excessive water conditions.

905 1 2 ice barriers in areas where there has been a history of ice forming along the eaves causing a backup of water as designated in table 301 2 1 an ice barrier shall be installed for asphalt shingles metal roof shingles mineral surfaced roll roofing slate and slate type shingles wood shingles and wood shakes. Valleys that carry a lot of water or that face north that hold ice can gain extra protection with water and ice barrier. Roll self adhered roofing underlayment 225 sq. These conditions occur during wind driven rain and even more so during water backfrom ice dams our previous post discusses ice damming.

Even if you don t live in an ice dam region like minnesota colorado and wisconsin you may still consider ice barrier membrane for your home. Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen. 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. Gcp applied technologies grace ice and water shield 36 in.

Valleys are the rivers of the roof structure. There are several areas of your roof especially susceptible to the water penetration that ice and water barrier will serve to prevent. 1 inch 25 4 mm 1 mile per hour 0 447 m s. Ice barrier roof material is used to protect vulnerable areas of the roof as an added layer of protection against ice and water damage.

Rolled roofing is usually installed below asphalt shingles in the valleys.