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.
Roof ice and water shield installation.
If installed properly this reliable roofing underlayment can save homeowners 18 000 in reroofing costs.
Cut the membrane into 10 15 ft 3 5 m lengths and reroll loosely.
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.
Does ice and water shield protect against hurricanes.
Ice and water shield products are hidden by the finished roofing materials.
Peel back 300 600 mm 1 2 ft of release liner align membrane.
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.
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.
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.
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.
Apply roof covering material at temperatures of 40 f 5 c or higher.
Ice and water protector needs to be installed directly onto the roof deck after you have placed the drip edge at the eave.
Here s how proper installation of grace ice water shield the conventional method.