Transition Joining Two Roofs With Different Pitches

The piece that allows us to join the two different slopes is the pitch transition trim.

Transition joining two roofs with different pitches.

Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof. Measure 1 1 2 from bottom edge of transition flashing. To transition the eaves the. See the illustration below.

Explore framing complexities that result when roofs of two different pitches intersect. By john carroll download the pdf version of this article. The overhang is 16 inches measured horizontally and the fascia runs at a continuous height around the entire house. Pitch transitions are a common roof detail.

Install bottom roofing panels first 2. Transition flashing installation guide 1. This technique is beneficial particularly in home expansion. This allows water to flow off the upper panels out over the trim onto the lower panels and exits the roof at the eaves.

Learn more about off angle roof framing. Jlc classics joining two roofs of different pitches. We re going to install it over top of the panels that have already been installed on the lower slope. After bottom roofing panels have been installed set one piece of transition flashing down where the top portion non hemmed of the transition flashing lies flat on the upper roof 3.

They form an upside down v with the point at the top of the addition roof. We see this quite frequently in log home roofs with porches for example. 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 these two roofs poses two main challenges.

Joining two roofs of different pitches framing. Place the 2 by 4 inch piece of lumber along the center of the flashing. Position the flashing between the two roof pitches. A roof pitch transition is a line in the roof plane that changes pitch.

Joining two roofs with different pitches is a method that exists in the building and construction world. This is a fairly common roof detail. Slide the right edge of the flashing under the highest roof pitch. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration.

The other is to get the fascias to line up.