Transition Roof Tin Over Porch

Attach the horizontal beam by using a nail gun.

Transition roof tin over porch.

After that to make it flush with the roof of the existing house cut the two outer rafters. Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge. A roof pitch transition is a line in the roof plane that changes pitch. Most flashing is 8 inches wide.

Attach 3 by 3 foot sheets of tin to each section of the frame using 1 inch steel hex washer head screws and a cordless drill. The roof plane goes from one pitch to a lower pitch. The piece that allows us to join the two different slopes is the pitch transition trim. We re going to install it over top of the panels that have already been installed on the lower slope.

Screw the steel hex washer head screws into the tops of corrugated waves of tin roofing material to prevent leaking through screw holes at the bottoms of the waves when rain runs down the roof. See the illustration below. 4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles. You have to do it thoroughly so that the rafters sit flush on it.

We see this quite frequently in log home roofs with porches for example. Make a cutting on one of the sides of the horizontal roof beam on an angle. Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint.