Joining Two Pitched Roofs

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Joining two 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 these two roofs poses two main challenges. A simple roof design shaped like an inverted v. 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. Joining two roofs of different pitches framing. By john carroll download the pdf version of this article. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration.

Position the flashing between the two roof pitches. Jlc classics joining two roofs of different pitches. To bend the flashing use a 2 by 4 lumber by pressing it gently until the flashing gets bent and matches the slope. Measure the length of joined area.

The result of joining two or more gabled roof sections together forming a t or l shape for the simplest forms or any number of more complex shapes. Slide the flashing under the highest roof pitch first and followed by the lower pitch. Pick the section where two edges will cross. Prepare the area by identifying where the two different pitched roofs will meet.

We ll start with the knowledge that the main roof has an 8 12 pitch. Learn more about off angle roof framing. Without the ridge it would be a barrel roof not on our list and the ridge is clearly what gives it the bow design. Next put the flashing between two roof pitches.

The slopes are steep enough near the house walls that precipitation is highly unlikely to stay on the. Put the lumber aside. Bow roofs appear gable like but the slopes are curved. The other is to get the fascias to line up.

This is where joining two pitched roofs together starts. Place the 2 by 4 inch piece of lumber along the center of the flashing. Joining two roofs with different pitches. Add 12 inch to the length.

Below are the steps on how to join two roofs together if they have different pitch.