Here s how to do it right the first time.
How to do step flashing on a roof.
Install the step flashing when the siding is installed it should be tucked behind this piece and then consecutive courses lapped over it.
The key elements of the process include.
Longer than the shingle s exposure.
Step flashings are to be installed one per course.
The remaining siding on the sidewall will overlap the step flashing and nail.
Cover tops of step.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
Lay an ice and water shield to the edge of the roof deck.
Place felt paper underlayment on the roof deck ensuring the underlayment turns up at the sidewall a minimum of three.
How to install roof flashing against a wall.
The vertical flange of the flashing is to extend up behind the adjoining siding.
Step flashing step flashing redirects the water back onto the shingle.
Nail through flashing into shingle do not extend flashing above top of shingle and.
Cut step flashing pieces to be 10 in.
Starting at the bottom of the roof install kick out flashing and then place.
Nail flashing to roof deck only.