How To Install Vent Flashing On Flat Roof

Step 2 carefully inspect the flashing.

How to install vent flashing on flat roof. Locate all of the areas around the flat roof where water can potentially enter. 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. Step flashing on roof peak. This can be a source for anything from smoke to steam.

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. Then nail the new l shaped flashing under the builder s felt but above the fascia board. Look for any type of vents as well.

Drip edge the drip edge is flashing that directs water into the gutters. Use one roofing nail in each corner of the flashing to secure it to the roof. 1 remove nails holding down shingles above the pip. Look for the chimney or any type of pipe coming out of the building.

Flat roof flashing is also installed around the perimeter of the roof to protect the underside of shingles. Begin by removing the shingles at the affected area and removing old flashing if present. 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. It is found near the edge of the roof.

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. 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. Slip a flat bar under the edge of the vent flashing and pop the nails up photo 1. Slide the new flashing over the vent pipe and under the shingles above the pipe.