Transition Joining Two Roofs With Different Pitches

A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration.

Transition joining two roofs with different pitches.

489 78 kb my business partner and i recently added a large screened in porch with a gable roof onto a client s home. Learn more about off angle roof framing. This technique is beneficial particularly in home expansion. Position the flashing between the two roof pitches.

One is getting the two differently pitched planes to meet at the hip or valley rafter. This is a fairly common roof detail. To transition the eaves the. Measure 1 1 2 from bottom edge of transition flashing.

They form an upside down v with the point at the top of the addition roof. Slide the right edge of the flashing under the highest roof pitch. Install bottom roofing panels first 2. Explore framing complexities that result when roofs of two different pitches intersect.

Transition flashing installation guide 1. Joining two roofs of different pitches framing. The piece that allows us to join the two different slopes is the pitch transition trim. By john carroll download the pdf version of this article.

The other is to get the fascias to line up. Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof. The overhang is 16 inches measured horizontally and the fascia runs at a continuous height around the entire house. 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. Pitch transitions are a common roof detail. 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 allows water to flow off the upper panels out over the trim onto the lower panels and exits the roof at the eaves.

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. We re going to install it over top of the panels that have already been installed on the lower slope. We see this quite frequently in log home roofs with porches for example. Place the 2 by 4 inch piece of lumber along the center of the flashing.

The roof plane goes from one pitch to a lower pitch.