Step Flashing For Roofing

Step flashing protects the interface between a roof and a wall from water leaks that can cause hidden damage for years. This flashing is typically field fabricated from a sheet of 26 ga. If this is a repair job the siding must also be removed and replaced with the flashing.

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Jamsill guard sill pan flashing 4 5625 in x 40 in plastic step flashing.

Step flashing for roofing.

Item 831018 model 4916sp 30. Next l shaped pieces of metal typically aluminum are placed under each shingle that butts up against the vertical wall. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture. Second step flashing needs to extend 8 to 14 inches above the shingles according to the national roofing contractors association nrca.

Roof flashing chimney flashing aluminum flashing roofing shingles 50 in. Step flashing can be made with aluminum copper lead galvanized steel or. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner.

Bent into an l shape. Step flashing needs to turn up a minimum of three inches up the sidewall. Or greater step flashing aluminum step flashing. This membrane attaches up the side of the wall as well.

Even if one piece of step flashing fails the flashing and shingle below it start the process over again. Get free shipping on qualified step flashing or buy online pick up in store today in the building materials department. The 7 inch length ensures a 2 inch headlap on each course. Base flashing and step flashing the waterproof membrane laid down before the shingles forms the first layer called the base flashing.

First step flashing must be installed before the siding so that the siding can cover the top of the flashing. Galvanized sheet metal bent at a 90 degree angle i e. Step flashing redirects the water back onto the shingle. Install the step flashing before running the first row of shingles install a piece of step flashing along the sidewall so that it sits tightly against the roof.

Once complete the housewrap should overlap the step flashing that s applied to the wall. The flashing material should be 4 inches by 7 inches in length when it lies on the roof deck. Truck tool rental.