How To Install Metal Flashing On A Flat Roof

Step flashing on roof peak.

How to install metal flashing on a flat roof.

It may be quite a labor but it pays off with a strong roof. Place the flashing where you determined and hammer it in place using roofing nails until the head of the nail is flush with the roof. Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge. 4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles.

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. Two ways to flash roof edges. Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint.

Begin by removing the shingles at the affected area and removing old flashing if present. 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. Details concrete masonry roofing wrb flashing. Coat the flat part of the flashing that sits on the deck using a putty knife.

Then nail the new l shaped flashing under the builder s felt but above the fascia board. Bend the corner flashing tightly around the corner. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Apply roofing cement when installing drip edge on an existing roof.

Here is a guide on how to install lead flashing to your roof. This video shows how to install endwall flashing with standing seam panels. Roof shingle over step flashing. One common method is to lay the edge metal under the eaves membrane and over the rake.