Transition Joining Two Roofs With Different Pitches

Where the porch roof extended over the shed roof we installed a 2x6 ridge that ran from the top of the.

Transition joining two roofs with different pitches.

Place the 2 by 4 inch piece of lumber along the center of the flashing. Prepare two pieces of lumber with a 1 1 inches width. The shingles may overlap to provide full coverage for the combined roof. One is getting the two differently pitched planes to meet at the hip or valley rafter.

We re going to install it over top of the panels that have already been installed on the lower slope. We ll start with the knowledge that the main roof has an 8 12 pitch. Joining two roofs of different pitches blind valleys simplify framing. As a final touch cover the flashing with shingles.

The other is to get the fascias to line up. Slide the right edge of the flashing under the highest roof pitch. First we should establish the pitch of both roof planes. Joining these two roofs poses two main challenges.

Position the flashing between the two roof pitches. To keep the porch roof framing as simple as possible we installed a structural ridge. Before joining two roofs with different pitches you can temporarily remove the eaves trim and replacing it after completing joining the roofs. After that cut each of them to fit the length of the joined area.

This allows water to flow off the upper panels out over the trim onto the lower panels and exits the roof at the eaves. Take a piece of the lumber and then slip it under the roof pitch that has a higher position.