Second step flashing needs to extend 8 to 14 inches above the shingles according to the national roofing contractors association nrca.
Step flashing for roofing.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
Roof flashing chimney flashing aluminum flashing roofing shingles 50 in.
Galvanized sheet metal bent at a 90 degree angle i e.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
Step flashing protects the interface between a roof and a wall from water leaks that can cause hidden damage for years.
Next l shaped pieces of metal typically aluminum are placed under each shingle that butts up against the vertical wall.
Step flashing can be made with aluminum copper lead galvanized steel or.
This membrane attaches up the side of the wall as well.
The 7 inch length ensures a 2 inch headlap on each course.
Step flashing redirects the water back onto the shingle.
Item 831018 model 4916sp 30.
Base flashing and step flashing the waterproof membrane laid down before the shingles forms the first layer called the base flashing.
The flashing material should be 4 inches by 7 inches in length when it lies on the roof deck.
Once complete the housewrap should overlap the step flashing that s applied to the wall.
Or greater step flashing aluminum step flashing.
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.
Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner.
Get free shipping on qualified step flashing or buy online pick up in store today in the building materials department.
If this is a repair job the siding must also be removed and replaced with the flashing.
Jamsill guard sill pan flashing 4 5625 in x 40 in plastic step flashing.
Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.
Bent into an l shape.
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