How To Roof Different Roof Transition

Position the flashing between the two roof pitches.

How to roof different roof transition.

Slide the right edge of the flashing under the highest roof pitch. The following is similar to a membrain that i did on my current home transition it has been dry for 3 winters so far. This allows water to flow off the upper panels out over the trim onto the lower panels and exits the roof at the eaves. Run the sail material to the roofing with several inches to spare use some 6 rolled metal flashing so this is 1 price.

After a taking some measurements and doing a bit of ciphering we established that the steepest pitch we could use on the porch roof was 4 in 12. Pitch transitions are a common roof detail. We re going to install it over top of the panels that have already been installed on the lower slope. This video shows how to install slope transition trim with standing seam panels.

See the illustration below. The piece that allows us to join the two different slopes is the pitch transition trim. Place the 2 by 4 inch piece of lumber along the center of the flashing. A roof pitch transition is a line in the roof plane that changes pitch.

We wanted to make the porch roof as steep as possible while keeping the peak of the roof below the wall to roof intersection at the top of the shed roof. This is a fairly common roof detail.