How To Install Vent Pipe Flashing On Existing Flat Roof

Pull the old flashing up over the vent pipe and scrape any old caulk and debris off the roof.

How to install vent pipe flashing on existing flat roof. How to retrofit the ultimate pipe flashing on an existing roof. Finally reattach all shingles removed in the process. Center the pipe in the flashing and push the flexible front corners up or down so that the flashing pipe is parallel to the vent pipe. Pry back the shingles that are above and on both sides of the vent pipe using a pry bar.

Use one roofing nail in each corner of the flashing to secure it to the roof. 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. Slide the new flashing over the vent pipe and under the shingles above the pipe. 1 remove nails holding down shingles above the pip.

Watch our demonstrator use an innovative pipe boot that can be cut to size and fixed to. Install flashing on existing roof to extend the lifespan of your roof. You don t need to bend back the shingle that s beneath the pipe. See how you can create a perfect seal around a pipe on a flat roof.

Add a large bead of caulk in a half moon shape around the flashing and put the shingles back in place.