How To Install Ice And Water Barrier On A Roof

It also can t protect against any water that flows upward toward the top of your roof like ice and water dams or heavy rain and wind storms.

How to install ice and water barrier on a roof. Then apply along the eaves. In the video it s been installed on the entire roof. The conventional method cut the membrane into 3 5 m 10 15 ft lengths and re roll loosely. During winters when there is a lot of snow and ice dams form higher up the roof slope water can pond up behind the dams and reach higher than 36 in.

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. Once in place follow by flashing the rakes. Of sheet is strips of the membrane can also be used as stripping. Synthetic underlayment like an ice and water shield is quite a bit lighter rolls out in large rolls and is made of polypropylene fiberglass polyethylene and.

This ice water shield is applied as an underlayment prior to putting the shingles on the roof. When installed correctly the ice and water shield will extend up the roof from the fascia board to a minimum of 2 past the exterior wall. This ice shield seals nail holes better then regular tar paper roofing materials. Install waterguard rain ice first in roof valleys see instructions below and as a flashing membrane at roof to wall transitions around vents curbs skylights and other roof penetrations.

Peel the release liner from the membrane. The drip edge will be installed over the ice and water protector and other underlayments at roof rake edges you should install ice and water protector before other underlayments including roof felt. Install the ice barrier membrane according to the manufacturer s instructions with the drip edge installed on top of the membrane. Ice and water protector needs to be installed directly onto the roof deck after you have placed the drip edge at the eave.

The guy also talks about how the ice water shield seals itself around roofing nails which helps to distinguish it from a traditional underlayment product e g. The video shows you exactly what ice water shield looks like and where it s installed. Peel back 300 600 mm 1 2 ft of release liner align membrane. Tar paper roofing felt thermoplastic polyolefin etc or cheaper.