How To Install Flashing On Existing Roof

Galvanized sheet metal bent at a 90 degree angle i e.

How to install flashing on existing roof.

Installing your roof flashing is going to be slightly different depending on the specific type that you re installing. Apply roofing cement when installing drip edge on an existing roof. How to install porch roof flashing. It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing.

Bent into an l shape. December 27 2018 a look at types of drip edge flashing how to cut it and how to retrofit it to an existing roof drip edge flashing is any flashing that protects a building element by shedding water. Install flashing on existing roof to extend the lifespan of your roof. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.

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. But it doesn t work that way. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. Once even a small section of roofing cement fails you ll have a leak.

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. Finally reattach all shingles removed in the process. These leaks are almost always caused by improper flashing installation or the absence of roof flashing altogether. Posted march 4 2017 filed under roof installation roof repair maintenance.

This flashing is typically field fabricated from a sheet of 26 ga. Coat the flat part of the flashing that sits on the deck using a putty knife. The leading edge of the flashing is called the drip edge.