According to most building codes and manufacturer recommendations the drip edge should be installed beneath the underlayment along the eaves of the roof.
How to install roof felt and drip edge.
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.
12 roof repair tips.
Does drip edge go over or under felt.
Secure the drip edge with roofing cement.
Apply a continuous bead of cement along the top of the drip edge then press down on the shingle.
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Make sure the outer edge extends over the gutter.
If it doesn t pull the drip edge out slightly from under the shingles.
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Nail it in place with 1 inch roofing nails.
Does the drip edge metal go under the tarpaper ice and water shield or underlayment on the eave.
This lets any water that gets on the roof run down the underlayment and over the drip edge.
But over the underlayment along the rake edges of the roof.
Overlap joints where two pieces meet by about 1 inch.
Understanding the proper way to install the drip edge will only get you so far.
A furring edge is a strip of one by two wood you install on the vertical surface of the house just beneath the roof s edge.
Place the drip.
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Install drip edges on the eaves first.
Cut a length of drip edge when needed with a pair or tin snips.
While the vertical leg should be placed 1 4 1 2 away from the fascia.
To install a drip edge on a newly constructed roof or on a re roofing job attach the drip edge along the roof s eaves first.
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When you install the drip edge over this strip it keeps the lower flange further from the home s siding which helps to keep water further from the home.
Install the drip edge tightly against the edges of the plywood sub roofing so that it hangs down over the fascia.