How To Install Vent Flashing On Flat Roof

Flat roof flashing is also installed around the perimeter of the roof to protect the underside of shingles.

How to install vent flashing on flat roof.

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. Begin by removing the shingles at the affected area and removing old flashing if present. Slide the new flashing over the vent pipe and under the shingles above the pipe. Pull the old flashing up over the vent pipe and scrape any old caulk and debris off the roof.

Locate all of the areas around the flat roof where water can potentially enter. Step flashing on roof peak. Look for any type of vents as well. Now that the old flashing is gone you can slide the new flashing over the pipe vent and maneuver it under the shingles above the pipe.

Use one roofing nail in each corner of the flashing to secure it to the roof. Add a large bead of caulk in a half moon shape around the flashing and put the shingles back in place. Roof flashing will be found in a number of different locations on your roof. While you are up on the roof you should inspect all of the areas so that you don t have to return any time soon.

Bend the corner flashing tightly around the corner. Drip edge the drip edge is flashing that directs water into the gutters. 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. This can be a source for anything from smoke to steam.

1 remove nails holding down shingles above the pip. Step 2 carefully inspect the flashing. It is found near the edge of the roof. Roof shingle over step flashing.