How To Step Flash A Roof

Nail through flashing into shingle do not extend flashing above top of shingle and.

How to step flash a roof.

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. The base is then covered by another metal flashing piece lapped over it. One common method is to lay the edge metal under the eaves membrane and over the rake details concrete masonry roofing wrb flashing. Two part flashing systems consist of a base flashing often step flashing that is laced into the finished roof material.

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. How to repair roof flashing step one. The vertical flange of the flashing is to extend up behind the adjoining siding. Cut step flashing pieces to be 10 in.

Wide and 2 in. Be sure to follow the. If you find damage then you will have to get it. Even if one piece of step flashing fails the flashing and shingle below it start the.

Once you ve shingled up to the sidewall cut a piece of step flashing. When working with step flashing this may involve removing undamaged pieces of flashing as well. 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. 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.

Where the next piece of flashing will overlap apply a bead of caulk to seal the corner. Bend the first piece along the plumb line. Make corner flashing from step flashing. Step flashings are to be installed one per course.

Lay a bead of sealant. Here s how to do it right the first time. Align the step flashing with the leading edge of the starter course and nail it in place using one nail in the upper corner. Longer than the shingle s exposure.

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. However it s important to check for damage anyway.