Joining Roofs With Different Pitches

One is getting the two differently pitched planes to meet at the hip or valley rafter.

Joining roofs with different pitches.

The porch joined the house at right angles to a shed roof section. Explore framing complexities that result when roofs of two different pitches intersect. This technique is beneficial particularly in home expansion. First we should establish the pitch of both roof planes.

Joining these two roofs poses two main challenges. Slide the right edge of the flashing under the highest roof pitch. The other is to get the fascias to line up. If by any chance right now you are looking for the information about how to join two roofs if they have different pitches here we will share all the information we know with you.

Joining two roofs with different pitches is a method that exists in the building and construction world. We re going to install it over top of the panels that have already been installed on the lower slope. 489 78 kb my business partner and i recently added a large screened in porch with a gable roof onto a client s home. We ll start with the knowledge that the main roof has an 8 12 pitch.

By john carroll download the pdf version of this article. The piece that allows us to join the two different slopes is the pitch transition trim. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration. Learn more about off angle roof framing.

Just like what you do with the flashing slide the first piece under the higher roof first followed by placing the second piece under the lower roof. This allows water to flow off the upper panels out over the trim onto the lower panels and exits the roof at the eaves. For the next step of joining two roofs with different pitches you need to measure mark and cut two pieces of 1 by 1 lumber to work as the edges seals. Place the 2 by 4 inch piece of lumber along the center of the flashing.