Step Flashing For Roofing

Roof flashing chimney flashing aluminum flashing roofing shingles 50 in. Base flashing and step flashing the waterproof membrane laid down before the shingles forms the first layer called the base flashing. This flashing is typically field fabricated from a sheet of 26 ga.

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Step flashing for roofing.

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. Next l shaped pieces of metal typically aluminum are placed under each shingle that butts up against the vertical wall. 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. Or greater step flashing aluminum step flashing. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture. Jamsill guard sill pan flashing 4 5625 in x 40 in plastic step flashing.

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. The flashing material should be 4 inches by 7 inches in length when it lies on the roof deck. If this is a repair job the siding must also be removed and replaced with the flashing.

Item 831018 model 4916sp 30. Galvanized sheet metal bent at a 90 degree angle i e. Step flashing protects the interface between a roof and a wall from water leaks that can cause hidden damage for years. The 7 inch length ensures a 2 inch headlap on each course.

Truck tool rental. Step flashing redirects the water back onto the shingle. 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.

Step flashing needs to turn up a minimum of three inches up the sidewall. Second step flashing needs to extend 8 to 14 inches above the shingles according to the national roofing contractors association nrca. First step flashing must be installed before the siding so that the siding can cover the top of the flashing.