Framing Hip Roof With Different Pitches

A dutch hip roof is a combination of both the hip roof and gable roof features.

Framing hip roof with different pitches. Minus ridge thickness to allow for ridge becoming pole plate roof peak will be slightly higher ridge thick must be same. The hip roof framing calculator returns the value of the main rafter the side rafter the length of the hip the height of the knee wall and the lengths of the jack rafters. Porch roof extensions for hip roof porch extensions from an existing building wall you can use half the calculator results. Hip and valley roof framing is no so complex as compared to hip roof framing procedures.

Modern residential hip roof construction uses common pitch ratios in general. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration. Learn more about off angle roof framing. It is sometimes also referred to as a dutch gable roof precisely because it contains both roof style features.

Here roofs are constructed with an angle of 90 degrees. Enter the extension wall length into wall length and double the extension wall width then minus ridge thickness into the wall width entries. But here it will be different since the hip rafter doesn t lie at 45 degrees to the commons. Blind valleys simplify framing to keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge.

For example in an equal hip roof with an 8 12 pitch the pitch of the hip rafter would be 8 17. Now draw the centerlines for all rectangles that are formed inside. First of all you need to design the layout of building. The pitch of the unequal hip rafter can be expressed in relation to either the main roof or the secondary roof.

Now outline the biggest rectangle inside the building layout. Using a pitch measuring tool that i d made we also determined that the exact pitch of the shed roof was 3 1 2 in 12. Explore framing complexities that result when roofs of two different pitches intersect.