Before you apply the flashing you ll need to lay down a waterproof membrane.
Installing flashing on porch roof.
The flashing on the wall should be flush against it and the porch roof portion should be on top of the shingles.
Put on a pair of leather palm gloves to avoid injuries from the sharp edges of the metal flashing.
Cut an angle with tin snips on one side of the flashing piece from an end.
Lay the cut flashing down at the corner.
How to install porch roof flashing step 1.
Especially if you live in an area that gets a lot of snow and ice.
How to flash a porch addition 1.
If you already have faulty flashing installed you.
Measure the length of the porch roof joint to determine how much flashing you will need.
Install the underlayment as directed by the manufacturer then set the valley flashing on top of it.
Flash the corner first if applicable.
For the valley areas of the roof you will be using valley flashing.