Peel back 300 600 mm 1 2 ft of release liner align membrane.
Roof ice and water shield installation.
The big question is do i install the ice and water shield over or under the felt or synthetic underlayment the next question should i install the iws o.
By creating a barrier at the most vulnerable areas of your asphalt shingle roof at the eaves and rakes in valleys around chimneys etc weatherwatch mineral surfaced leak barrier helps prevent leaks due to water backing up in your gutters wind driven rain and in the north damaging ice dams.
Grace ice and water shield roofing underlayment a registered trademark of gcp applied technologies is the name that contractors trust the most to protect their reputations.
Ice and water shield products are hidden by the finished roofing materials.
Not only does ice and water shield installation stop leaks caused by ice dams but it also stops leaks created by fierce wind driven rain.
Continue installing waterguard rain ice up the roof from the eaves and along the rakes no less than 24 past the interior warm inside walls of the house2 or a spot well above the highest expected level of water backup from ice dams or according to adopted building code requirements.
Membrane installation apply grace ice water shield underlayment in fair weather when the air roof deck and membrane are at temperatures of 40 f 5 c or higher.
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.
Published on aug 25 2017 one person can install long lengths of ice and water shield to the roof however it is easier for two people to install especially with some new installation tricks.
Grace ice and water shield fully adhered smooth surface roofing underlayment provides best in class roof leak protection against wind driven rain and ice dams.
Cut the membrane into 3 5 m 10 15 ft lengths and re roll loosely.
Cut the membrane into 10 15 ft 3 5 m lengths and reroll loosely.
Does ice and water shield protect against hurricanes.
Ice and water protector needs to be installed directly onto the roof deck after you have placed the drip edge at the eave.