Transition Joining Two Roofs With Different Pitches

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.

Transition joining two roofs with different pitches.

Pitch transitions are a common roof detail. To transition the eaves the. This is a fairly common roof detail. Place the 2 by 4 inch piece of lumber along the center of the flashing.

This technique is beneficial particularly in home expansion. 489 78 kb my business partner and i recently added a large screened in porch with a gable roof onto a client s home. 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. They form an upside down v with the point at the top of the addition roof.

By john carroll download the pdf version of this article. This allows water to flow off the upper panels out over the trim onto the lower panels and exits the roof at the eaves. Joining two roofs with different pitches is a method that exists in the building and construction world. A roof pitch transition is a line in the roof plane that changes pitch.

We see this quite frequently in log home roofs with porches for example. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration. Explore framing complexities that result when roofs of two different pitches intersect. Install bottom roofing panels first 2.

Joining these two roofs poses two main challenges. Position the flashing between the two roof pitches. Joining two roofs of different pitches framing. Measure 1 1 2 from bottom edge of transition flashing.

Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof. One is getting the two differently pitched planes to meet at the hip or valley rafter. Learn more about off angle roof framing. We re going to install it over top of the panels that have already been installed on the lower slope.

The overhang is 16 inches measured horizontally and the fascia runs at a continuous height around the entire house. See the illustration below. Transition flashing installation guide 1. The roof plane goes from one pitch to a lower pitch.

The other is to get the fascias to line up.