Transition Joining Two Roofs With Different Pitches

This is a fairly common roof detail.

Transition joining two roofs with different pitches.

Explore framing complexities that result when roofs of two different pitches intersect. See the illustration below. Position the flashing between the two roof pitches. Joining two roofs with different pitches is a method that exists in the building and construction world.

Install bottom roofing panels first 2. Learn more about off angle roof framing. A roof pitch transition is a line in the roof plane that changes pitch. One is getting the two differently pitched planes to meet at the hip or valley rafter.

Pitch transitions are a common roof detail. By john carroll download the pdf version of this article. 489 78 kb my business partner and i recently added a large screened in porch with a gable roof onto a client s home. Jlc classics joining two roofs of different pitches.

Measure 1 1 2 from bottom edge of transition flashing. The other is to get the fascias to line up. This allows water to flow off the upper panels out over the trim onto the lower panels and exits the roof at the eaves. 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.

This technique is beneficial particularly in home expansion. To transition the eaves the. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration. Joining two roofs of different pitches framing.

We see this quite frequently in log home roofs with porches for example. The piece that allows us to join the two different slopes is the pitch transition trim. Slide the right edge of the flashing under the highest roof pitch. The overhang is 16 inches measured horizontally and the fascia runs at a continuous height around the entire house.

Joining these two roofs poses two main challenges. We re going to install it over top of the panels that have already been installed on the lower slope. Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof. Transition flashing installation guide 1.

Place the 2 by 4 inch piece of lumber along the center of the flashing.