The best way is to install the roof drip edge only along the eaves first then place ice and water barrier in the snowbelt or felt paper underlayment over the drip edge.
Installing ice and water shield on existing roof.
Here s how proper installation of grace ice water shield the conventional method.
When water and ice is installed should it be adhesive backed and should it be on the bare sheathing at first i was going to give my standard response but i thought this would be an excellent teaching moment.
If installed properly this reliable roofing underlayment can save homeowners 18 000 in reroofing costs.
Ice and water protector needs to be installed directly onto the roof deck after you have placed the drip edge at the eave.
This ice water shield is applied as an underlayment prior to putting the shingles on the roof.
Install roof drip edge along the eaves add underlayment then place drip edge along the gable end.
Installing ice and water shield roofing text.
Peel back 300 600 mm 1 2 ft of release liner align membrane.
This lets any water that gets on the roof run down the underlayment and over the drip edge.
This ice shield seals nail holes better then regular tar paper roofing materials.
Cut the membrane into 3 5 m 10 15 ft lengths and re roll loosely.