Hip Roof With 2 Different Pitches

Explore framing complexities that result when roofs of two different pitches intersect.

Hip roof with 2 different pitches.

For example in an equal hip roof with an 8 12 pitch the pitch of the hip rafter would be 8 17. Modern residential hip roof construction uses common pitch ratios in general. Variations of a hip roof. How to use the hip roof framing calculator.

Blind valleys simplify framing. 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. Select the following information by using the drop downs to enter values in feet and inches. 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.

The pitch of the unequal hip rafter can be expressed in relation to either the main roof or the secondary roof. But here it will be different since the hip rafter doesn t lie at 45 degrees to the commons. From simple to very complex computer generated hip roof designs. Tented roof a multi sided polygonal hip roof with steeply pitched slopes that rise to a.

Learn more about off angle roof framing. While the slope of the common rafters are expressed as x in 12 the slope of the hip and valley rafter on the same roof will be x in 16 97 so where two roof sections intersect to form a 90 angle a regular hip or valley and each roof. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration. A hip roof or a hipped roof is a style of roofing that slopes downwards from all sides to the walls and hence has no vertical sides.

On a related note the pitch properly the slope of a hip or valley rafter will not be the same as the pitch of the adjacent roof sections. Pavilion roof a hip roof on a square structure where all sides join to form a single peak also known as a pyramid roof mansard roof a type of hip roof where each side includes two different sloping angles with the lower angle much steeper than the upper angle.