Joining 2 Different Pitched Roofs

489 78 kb my business partner and i recently added a large screened in porch with a gable roof onto a client s home.

Joining 2 different pitched roofs. Position the flashing between the two roof pitches. By john carroll download the pdf version of this article. 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 these two roofs poses two main challenges.

A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration. The piece that allows us to join the two different slopes is the pitch transition trim. First we should establish the pitch of both roof planes. Joining two roofs with different pitches is a method that exists in the building and construction world.

A simple roof design shaped like an inverted v. We ll start with the knowledge that the main roof has an 8 12 pitch. One is getting the two differently pitched planes to meet at the hip or valley rafter. Explore framing complexities that result when roofs of two different pitches intersect.

I have only built one roof where a hip was joining two different pitch roofs at the corner of a house. Learn more about off angle roof framing. Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old 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.

We re going to install it over top of the panels that have already been installed on the lower slope. The porch joined the house at right angles to a shed roof section. I was taught to split the different pitches thus coming up with the hip pitch. Slide the right edge of the flashing under the highest roof pitch.

3 12 and 6 12 is 4 5 17. They form an upside down v with the point at the top of the addition roof. The other is to get the fascias to line up. This technique is beneficial particularly in home expansion.

Gable ridged dual pitched peaked saddle pack saddle saddleback span roof.