How To Step Flash A Roof

Two part flashing systems consist of a base flashing often step flashing that is laced into the finished roof material.

How to step flash a roof.

Step flashings are to be installed one per course. How to repair roof flashing step one. Lay a bead of sealant. 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.

Nail through flashing into shingle do not extend flashing above top of shingle and. Bend the first piece along the plumb line. The second piece should not be fastened to the base so the two pieces can move against each other independently when the roofing materials shift with seasonal change. The base is then covered by another metal flashing piece lapped over it.

Even if one piece of step flashing fails the flashing and shingle below it start the. Nail flashing to roof deck only. Here s how to do it right the first time. However it s important to check for damage anyway.

Once you ve shingled up to the sidewall cut a piece of step flashing. Step flashing redirects the water back onto the shingle. If you find damage then you will have to get it. Cut step flashing pieces to be 10 in.

When working with step flashing this may involve removing undamaged pieces of flashing as well. Two ways to flash roof edges protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Wide and 2 in. Make corner flashing from step flashing.

Be sure to follow the. One common method is to lay the edge metal under the eaves membrane and over the rake details concrete masonry roofing wrb flashing. The roof deck flange of step flashings are to be fastened to the surface of each shingle in a position whereby the next course of shingles will cover up hide the flashing from view. Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner.

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. Cover tops of step.