How To Step Flash A Roof

Nail flashing to roof deck only.

How to step flash a roof.

Step flashing redirects the water back onto the shingle. Wide and 2 in. One common method is to lay the edge metal under the eaves membrane and over the rake details concrete masonry roofing wrb 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.

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 vertical flange of the flashing is to extend up behind the adjoining siding. Even if one piece of step flashing fails the flashing and shingle below it start the. However it s important to check for damage anyway.

Nail through flashing into shingle do not extend flashing above top of shingle and. Cut step flashing pieces to be 10 in. How to repair roof flashing step one. 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.

Where the next piece of flashing will overlap apply a bead of caulk to seal the corner. Lay a bead of sealant. Be sure to follow the. Make corner flashing from step flashing.

When working with step flashing this may involve removing undamaged pieces of flashing as well. Two part flashing systems consist of a base flashing often step flashing that is laced into the finished roof material. Step flashings are to be installed one per course. Cover tops of step.

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. 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. Longer than the shingle s exposure. Bend the first piece along the plumb line.

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. The base is then covered by another metal flashing piece lapped over it.