We ll start with the knowledge that the main roof has an 8 12 pitch.
Transition joining two roofs with different pitches.
Place the 2 by 4 inch piece of lumber along the center of the flashing.
The piece that allows us to join the two different slopes is the pitch transition trim.
Joining these two roofs poses two main challenges.
As a final touch cover the flashing with shingles.
Slide the right edge of the flashing under the highest roof pitch.
The primary function of these two items is for sealing the edges of the roof.
Prepare two pieces of lumber with a 1 1 inches width.
We re going to install it over top of the panels that have already been installed on the lower slope.
This allows water to flow off the upper panels out over the trim onto the lower panels and exits the roof at the eaves.
Joining two roofs of different pitches blind valleys simplify framing.
Where the porch roof extended over the shed roof we installed a 2x6 ridge that ran from the top of the.
The roof is now combined and you re now good to go.
After that cut each of them to fit the length of the joined area.
First we should establish the pitch of both roof planes.
Before joining two roofs with different pitches you can temporarily remove the eaves trim and replacing it after completing joining the roofs.
Position the flashing between the two roof pitches.
The shingles may overlap to provide full coverage for the combined roof.
The other is to get the fascias to line up.