Gable Joining Two Roofs With Different Pitches

The front gable d f g is 18 feet wide and has a rise of 8 feet.

Gable joining two roofs with different pitches.

To keep the porch roof framing as simple as possible we installed a structural ridge. It will be noticed that the left gable has two different pitches. One idea i had was to sort of combine hip and gable roofs by doing the two roof peaks on the left the lower pitches with a little shed roof going across the entirely of the gable right above the garage doors for example and making doing a traditional rake gable edge on the porch entry. 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. First we should establish the pitch of both roof planes. Where the porch roof extended over the shed roof we installed a 2x6 ridge that ran from the top of the. The piece that allows us to join the two different slopes is the pitch transition trim.

Joining two roofs with different pitches is a method that exists in the building and construction world. One is getting the two differently pitched planes to meet at the hip or valley rafter. Gambrel roof a multi sided polygonal hip roof with steeply pitched slopes that rise to a peak similar to what you d see on a church steeple. Joining two roofs of different pitches blind valleys simplify framing.

Joining these two roofs poses two main challenges. The last gable j i h is 21 feet wide and has a rise of 8 feet. This allows water to flow off the upper panels out over the trim onto the lower panels and exits the roof at the eaves. We re going to install it over top of the panels that have already been installed on the lower slope.

That sounds worse than what you have. This plan shows as much irregularity as can be desired and as much as is generally encountered in actual practice. We ll start with the knowledge that the main roof has an 8 12 pitch. Learn more about off angle roof framing.