Ice And Water Shield Roof Valley

A properly flashed roof valley should have an ice and water shield installed with roofing felt being properly secured over the ice and water.

Ice and water shield roof valley.

If an ice dam occurs on your roof and water backs up under the shingles it will seep down into your home through the nail holes holding the shingles. See the benefits of leak barriers. This grace ice and water shield self adhered roofing under layment covers 225 sq ft of roofing deck 36 in. Grace ice water shield roofing membrane is used as an underlayment for sloped roofs to resist water penetration due to water back up behind ice dams or wind driven rain.

Ice and water shield is a great product that can be used in spots to protect the most vulnerable areas of your roof or as a whole roof underlayment to protect from ice dams water dams storms and leaking in any area of the country and any weather. Help prevent leaks caused by wind driven rain and ice dams. November 19 2014 10 37pm 5. The following photos illustrate removal and replacement of a closed cut valley with new open metal valley shingles being removed in closed cut valley.

I consider it to be the premium roofing water shield on the market especially for shallow pitched roofs that get a lot of snow and ice in the winter. Ice and water protectors sometimes called ice and snow shields in cold climates are made with polymer modified bitumen. Roof slopes between 2 12 and 4 12 can use shingles but require roof application techniques to take into account a greater potential for ice dam water backup. If the ice and water shield is missing then you will have to remove the shingles on both sides along the valley put ice and water shield in place and re shingle the roof.

Get automatic lifetime protection on your entire gaf roofing system when you install any gaf lifetime shingle and at least 3 qualifying gaf accessories you ll automatically get a lifetime limited warranty on your shingles and. Ice barrier underlayment installed in roof valley. I have used it for years. All shingles removed from closed cut valley.

A shingled valley should last the life of your roof if done properly regardless if you have ice water shield under it or just 30 felt. Rise of the roof to the horizontal run and is expressed as a fraction. Grace ice water shield underlayment also offers leak protection in trouble prone spots like valleys skylights protrusions and other flashing areas. Ice water shield is a thick sticky back underlayment also known as felt paper that will adhere to your roof deck and prevent water from seeping into your home if it gets under your shingles.

If the manufacturer requires the use of ice water i w in the valley because of the shingle type pitch of roof harsh climate area etc then i would use it.