How To Install Metal Flashing On A Flat Roof

Details concrete masonry roofing wrb flashing.

How to install metal flashing on a flat roof.

It may be quite a labor but it pays off with a strong roof. Coat the flat part of the flashing that sits on the deck using a putty knife. 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 roofing nails to install the l shaped flashing flush with the roof and wall then cover it with roofing cement and reattach the roofer s felt.

Two ways to flash roof edges. Begin by removing the shingles at the affected area and removing old flashing if present. Apply roofing cement when installing drip edge on an existing roof. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing.

If you do not wish to form your own corner flashing you can buy pre bent pieces and cut them to size or use a piece of corrugated aluminum which is easier to bend. Once you know where the flat roof flashing goes and you have trimmed it the easy part is installing it. Then nail the new l shaped flashing under the builder s felt but above the fascia board. Here is a guide on how to install lead flashing to your roof.

4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles. Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge. The video features union s advantage lok ii standing seam roofing panel which is. One common method is to lay the edge metal under the eaves membrane and over the rake.

Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint. Bend the corner flashing tightly around the corner. Roof shingle over step flashing. Most flashing is 8 inches wide.