Step flashing step flashing redirects the water back onto the shingle.
How to do step flashing on a roof.
Nail through flashing into shingle do not extend flashing above top of shingle and.
The key elements of the process include.
Place felt paper underlayment on the roof deck ensuring the underlayment turns up at the sidewall a minimum of three.
Here s how to do it right the first time.
Wide and 2 in.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
Lay an ice and water shield to the edge of the roof deck.
Step flashings are to be installed one per course.
How to install roof flashing against a wall.
Longer than the shingle s exposure.
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 remaining siding on the sidewall will overlap the step flashing and nail.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
Nail flashing to roof deck only.
The vertical flange of the flashing is to extend up behind the adjoining siding.
Cover tops of step.