How Install Step Flashing Against A Siding

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How install step flashing against a siding. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture. Posted march 4 2017 filed under roof installation roof repair maintenance. This flashing is typically field fabricated from a sheet of 26 ga. The first piece of step flashing needs one bend so that it laps cleanly over the corner flashing installed in the previous step.

The solution to rotting sidewalls is a small piece of bent metal called a kickout flashing at roofing suppliers which simply directs all that water away from the wall. To make corner flashing take your tin snips and cut a 45 degree line from an outside corner to the center fold. Then sink one nail into the sidewall to hold the step flashing in place. Small flashing pieces must be woven into the shingles as you work your way up the roof.

Step flashing protects the interface between a roof and a wall. Before running the first row of shingles install a piece of step flashing along the sidewall so that it sits tightly against the roof. With step flashing you do a little flashing then. Install a reverse peak flashing for the other side of the roof so the two wall edges overlap in an x nail step flashing at a peak so the roof side extends over peak flashing on the roof.

Even if the roof has been properly flashed against the sidewall this one hasn t water can still run down the side of the house and behind the siding causing rot. Install the step flashing. Make sure the caulk joint between these two pieces is bedded evenly. Install your underlayment completely and your shingles up to where the wall begins so that the first piece of flashing or the corner flashing will rest on a shingle.