How To Join Two Roofs Different Hights

Position the flashing between the two roof pitches.

How to join two roofs different hights.

A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration. To keep the porch roof framing as simple as possible we installed a structural ridge. This is the centerline of the first jack. With either copper or lead you can do it with one piece by folding the sheet onto itself creating a z fold yielding a triple layer.

Slide the right edge of the flashing under the highest roof pitch. Start by laying it up the back side of the small gable then up the rake board then flat onto the main roof. The difference is only you have to fit rafter material or scrap or plywood at the back of common rafter in the section where both roofs meet. After that cut each of them to fit the length of the joined area.

For each successive jack rafter step off the common difference. Where the porch roof extended over the shed roof we installed a 2x6 ridge that ran from the top of the. Joining two roofs with different heights the guide on how to join two roofs together in different heights is more or less similar to the steps on joining two roofs with similar pitch. Take a piece of the lumber and then slip it under the roof pitch that has a higher position.

Explore framing complexities that result when roofs of two different pitches intersect. The primary function of these two items is for sealing the edges of the roof. Joining two roofs of different pitches blind valleys simplify framing. Place the 2 by 4 inch piece of lumber along the center of the flashing.

Prepare two pieces of lumber with a 1 1 inches width.