Where Does Step Flashing Go On A Roof

Step flashing redirects the water back onto the shingle. Even if one piece of step flashing fails the flashing and shingle below it start the. This flashing is typically field fabricated from a sheet of 26 ga.

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Step flashing is a rectangular piece of flashing bent 90 degrees in the center.

Where does step flashing go on a roof.

Bent into an l shape. The bottom edge of the flashing should extend just below the nail line. Step flashing steps up a roof to protect where the roof meets the side walls of dormers chimneys and some skylights. It is used for roof to wall flashing.

Pieces of step flashing are bent at an angle relative to the roof pitch and installed along the full length of the sidewall where it joins the roof deck. The top requires another custom piece. This process will continue up the entire roof. Next install the step flashing with the next course of shingles over top of it.

Attach each piece with a single nail high enough to be covered by the next course of flashing the building wrap and the siding. Galvanized sheet metal bent at a 90 degree angle i e. Each section is worked into a course of shingles so that it overlaps the section beneath it. Continuous flashing is sometimes seen where a roof meets a sidewall but in the long run step flashing will do a better job of preventing water leaks.

Step flashing needs to turn up a minimum of three inches up the sidewall. The flashing material should be 4 inches by 7 inches in length when it lies on the roof deck. The flashing s vertical edge is usually tucked under siding or capped with a. Posted march 4 2017 filed under roof installation roof repair maintenance.

The 7 inch length ensures a 2 inch headlap on. Step flashing should always be used where the roof deck meets a sidewall. It is used for roof to wall flashing. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.

Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall. It consists of a series of right angled metal pieces. Each piece of step flashing laps over the shingle below and under the shingle above. The flashing should be partially exposed along the wall.