How To Cut Roof Flashing

Run the base flashing 4 to 5 in.

How to cut roof flashing.

Cut lead to size. Shape the lead flashing. Set up the two sawhorses five feet apart and parallel to each other and place the four foot by eight foot piece. However if you walk into a store to buy your own flashing be careful.

Bend the flap down and nail along the top edge. Next place your vent flashing on top of the membrane. Add shingles and additional step. Cut some membrane material to seal between the vent flashing and the roof and cut an opening for the vent.

Apply a thin bead of silicone around the opening of the vent pipe area and lay the membrane in place. Notch the first step flashing leaving a 1 in. Beyond the dormer and cut the top section along the dormer edge. Flap to bend around the front of the dormer.

They ll use tinning snips to cut the sheets and bend them to the exact size they need while on the roof. The metal flashing must overlap the material not the other way around. Nail along its upper edge. Stretch the tape measure along the length of aluminum flashing and.

How to cut aluminum flashing step 1. The recommended overlap from the join to the end of the flashing should be around 150mm. Pull a length of aluminum flashing onto the 5 8 inch plywood.