Ice and water membrane is needed most to address ice damming issues during the winter.
Ice and snow roof membrane.
The purpose of ice and water underlayment is to stop water from passing through the roof system into a home.
Press the membrane in place with heavy hand pressure.
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.
Apply roof covering material at temperatures of 40 f 5 c or higher.
Peel back 1 2 ft 300 600 mm of release liner align the membrane and continue to peel the release liner from the membrane.
Ice can build up on a roof slope usually at the unheated area at the eaves forming an ice dam that prevents water from draining off the roof.
An ice dam is a thick rim of ice that originates along the edges of a roof when snow melts and then refreezes.
Cut the membrane into 10 15 ft 3 5 m lengths and reroll loosely.
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.
In turn this water can creep up under the shingles causing a roof leak.