Installing Flashing On Porch Roof

Install the flashing place the flashing between the joint of the house and the roof.

Installing flashing on porch roof. How to flash a porch addition 1. The flashing on the wall should be flush against it and the porch roof portion should be on top of the shingles. Lay the cut flashing down at the corner. Prepare the area where you will install the roof flashing.

If you already have faulty flashing installed you. Cut an angle with tin snips on one side of the flashing piece from an end. Measure the length of the porch roof joint to determine how much flashing you will need. Especially if you live in an area that gets a lot of snow and ice.

Install the underlayment as directed by the manufacturer then set the valley flashing on top of it. Put on a pair of leather palm gloves to avoid injuries from the sharp edges of the metal flashing. Flash the corner first if applicable. Before you apply the flashing you ll need to lay down a waterproof membrane.