How To Install Step Flashing Under Existing Siding

Lay a shingle over the step flashing starting at the roof edge.

How to install step flashing under existing siding.

Once even a small section of roofing cement fails you ll have a leak. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture. Cut a piece.

Cover tops of step. Then nail the new l shaped flashing under the builder s felt but above the fascia board. Lay shingles over step flashing from the roof edge. Slice along the bend line about 4 inches into the first piece of flashing at the bottom of the roof with tin snips.

Nail through flashing into shingle do not extend flashing above top of shingle and. Every single end should be covered with flashing. How to install step flashing under siding 1. But it doesn t work that way.

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. Fasten that shingle with two galvanized nails at the. Bent into an l shape. Begin by removing the shingles at the affected area and removing old flashing if present.

Galvanized sheet metal bent at a 90 degree angle i e. Wide and 2 in. It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing. Nail flashing to roof deck only.

Longer than the shingle s exposure. Posted march 4 2017 filed under roof installation roof repair maintenance. Shingles need to be fastened with nails in the top area and then cover top with another step flashing piece with nails. This flashing is typically field fabricated from a sheet of 26 ga.