Installing Metal Flashing On A Roof

For exposed fasteners avoid over tightening the fastener.

Installing metal flashing on a roof.

Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. 4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles. Most flashing is 8 inches wide. Space the screws about 12 in 30 cm apart.

How to install roof flashing against a wall. Step flashing step flashing redirects the water back onto the shingle. This is not a complete install only basic install on a bungalow i. Typically flashing is installed using roofing nails and roofing cement.

Flashing is generally installed at any joints or edges in the roof where water could otherwise work its way in. Use your neoprene washer head screws to secure the metal to the sheathing. Bend the corner flashing tightly around the corner. Lay the flashing down in the roof valley and start at the lower end of the roof.

In this video i m installing some metal roofing over an existing ash fault shingled roof. Make sure that the end of the flashing panel is perfectly in line with the edge of the roof. Roof shingle over step flashing. In order to properly install new flashing you ll have to remove the shingles surrounding your old flashing and then re lay them after installation.

I m going to take the end wall flashing put it in place and use a pencil or a sharpie to mark the tops of the ribs and the gable trim just so i know where to put those z s. Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge. Attach the flashing panel in place at the bottom. If you do not wish to form your own corner flashing you can buy pre bent pieces and cut them to size or use a piece of corrugated aluminum which is easier to bend.

In order to do that we re going to use the end wall flashing as a guide. However the principles are the s. Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint. Use 1 inch galvanized roofing nails.

Even if one piece of step flashing fails the flashing and shingle below it start the process over again. We ve cut our z trims and before we install them we need to know where to place them on the panel. Step flashing on roof peak.