Ice And Water Barrier Roofing

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Ice and water barrier roofing.

Ice dams are a serious issue for homeowners and roofing professionals in cold climates or even where occasional snow may fall. Ice dams are formed by the continuous melting and freezing of snow due to heat escaping from the house or from a backup of frozen slush from the rain gutters the melted water flows under the snow and freezes as it reaches the unheated soffit area at the eaves thus. Not all roofing underlayments are the same. The ice and water shield is an amazing roofing product that was first introduced in the 1980s.

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. Install the ice barrier membrane according to the manufacturer s instructions with the drip edge installed on top of the membrane 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. Not all high temperature roofing underlayments are the same. 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.

These conditions occur during wind driven rain and even more so during water back from ice dams our previous post discusses ice damming. There are several areas of your roof especially susceptible to the water penetration that ice and water barrier will serve.