How To Install Drip Edge Flashing On Existing Roof

Apply a continuous bead of cement along the top of the drip edge then press down on the shingle.

How to install drip edge flashing on existing roof.

Typically flashing is installed using roofing nails and roofing cement. At 7 05 paul begins replacing the drip edge roof flashing. The starter course is comprised. 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.

This will allow for expansion and contraction and prevent buckling. Coat the flat part of the flashing that sits on the deck using a putty knife. Slip the wide flat flange of the material all the way under the first course of roof shingles as illustrated. Secure the drip edge with roofing cement.

Using drip edge with a nailing edge approx. The roof leg should extend a minimum of 2 back onto the roof sheathing. 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. You may need to use a putty knife to break the seam between the first course and the starter strip.

Use a flat pry bar to remove drip edge nails along the eave and rakes. Install the starter course. How to install a drip edge. Flashing is generally installed at any joints or edges in the roof where water could otherwise work its way in.

If it doesn t pull the drip edge out slightly from under the shingles. 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. Slide the flat bar under starter course and pry out the nails. Apply roofing cement when installing drip edge on an 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. 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.