How to install drip edge flashing to a new roof 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.
How to install drip edge flashing on existing roof.
Lift the shingles slide the drip edge underneath them and position it so that it extends over the gutters then replace the shingles and push down to seat the drip edge.
Use a flat pry bar to remove drip edge nails along the eave and rakes.
Install the starter course.
Typically flashing is installed using roofing nails and roofing cement.
How to install a drip edge.
If it doesn t pull the drip edge out slightly from under the shingles.
Slide the flat bar under starter course and pry out the nails.
The drip edge should be installed on top of the underlayment at all rakes and below or on top of the underlayment at the eaves.
The starter course is comprised.
Slip the wide flat flange of the material all the way under the first course of roof shingles as illustrated.
While the vertical leg should be placed 1 4 1 2 away from the fascia.
Coat the flat part of the flashing that sits on the deck using a putty knife.
Using drip edge with a nailing edge approx.
The roof leg should extend a minimum of 2 back onto the roof sheathing.
Apply roofing cement when installing drip edge on an existing roof.
Secure the drip edge with roofing cement.
This will allow for expansion and contraction and prevent buckling.
At the eaves when installing the drip edge on top the underlayment a 4 inch wide layer of asphalt roof cement complying with the astm d4586 type i or type ii is required.
Flashing is generally installed at any joints or edges in the roof where water could otherwise work its way in.
Make sure the outer edge extends over the gutter.
In order to properly install new flashing you ll have to remove the shingles surrounding your old flashing and then re lay them after installation.
Apply a continuous bead of cement along the top of the drip edge then press down on the shingle.