How To Install Ice And Water Barrier On A Roof

Of sheet is strips of the membrane can also be used as stripping.

How to install ice and water barrier on a roof.

The winter of 2014 2015 in my southern new england area reinforced the need for ice barriers to be installed according to the code. This ice shield seals nail holes better then regular tar paper roofing materials. 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. Tar paper roofing felt thermoplastic polyolefin etc or cheaper.

Then apply along the eaves. 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. The video shows you exactly what ice water shield looks like and where it s installed. 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.

This kind of placement ensures that the shield protects your roof against leaks and prevent ice dams from forming along the edge of your roof or gutters which are most vulnerable during the winter. In the video it s been installed on the entire roof. 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. Peel the release liner from the membrane.

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. Install the ice barrier membrane according to the manufacturer s instructions with the drip edge installed on top of the membrane. 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. 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.

Peel back 300 600 mm 1 2 ft of release liner align membrane. This ice water shield is applied as an underlayment prior to putting the shingles on the roof. Once in place follow by flashing the rakes. 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.