How To Install Vent Flashing On Flat Roof

Drip edge the drip edge is flashing that directs water into the gutters.

How to install vent flashing on flat roof.

Roof shingle over step flashing. Then nail the new l shaped flashing under the builder s felt but above the fascia board. Add a large bead of caulk in a half moon shape around the flashing and put the shingles back in place. Slip a flat bar under the edge of the vent flashing and pop the nails up photo 1.

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. 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 any type of vents as well.

Step flashing on roof peak. Look for the chimney or any type of pipe coming out of the building. It is found near the edge of the roof. Begin by removing the shingles at the affected area and removing old flashing if present.

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. Roof flashing will be found in a number of different locations on your roof. Flat roof flashing is also installed around the perimeter of the roof to protect the underside of shingles.

This can be a source for anything from smoke to steam. Pull the old flashing up over the vent pipe and scrape any old caulk and debris off 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. Bend the corner flashing tightly around the corner.