Roof Ice Water Barrier

The decking and your attic or home beneath that.

Roof ice water barrier.

Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen. 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. Ice barrier roof material is used to protect vulnerable areas of the roof as an added layer of protection against ice and water damage. 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.

These conditions occur during wind driven rain and even more so during water backfrom ice dams our previous post discusses ice damming. Water and ice barrier keeps ice and water away from what s underneath it i e. Owens corning 200 sq. Grace ice and water shield fully adhered smooth surface roofing underlayment provides best in class roof leak protection against wind driven rain and ice dams.

Weatherlock g granular self sealing ice and water shield leak barrier model 891705 view the owens corning total protection roofing system. 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. Grace ice and water shield roofing underlayment a registered trademark of gcp applied technologies is the name that contractors trust the most to protect their reputations. Section r905 1 2 ice barriers in the 2018 irc says the ice barrier shall extend from the lowest edges of all roof surfaces to a point not less than 24 inches inside the exterior wall line of the building a couple of examples of how far up the slope of the roof the ice barrier membrane must be installed.

Ice 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. Denver area roofing companies must install water and ice barrier in some jurisdictions as it is required by code.