Fine Homebuilding Irregular Hip Roof

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.

Fine homebuilding irregular hip roof.

Rick arnold frequent contributor to fine homebuilding and the journal of light construction presenter at jlc live the katz roadshow the remodeling show. 2007 jlc on complex roof geometry. Irregular hip geometry framing dxf auto generated dxf cad file of irregular hip geometry drawing each time script is run. A hip and valley roof may be part of an irregular structure.

We ll use the 12 as the rotation point on the framing square and move the other end of the framing square to the edge of the hip rafter material using the 6 rotation dimension. It will display the framing square usage for the slope angle of the hip rafter 27 50055 6 12. Dedicated to the art of carpentery roof framing. A hip roof commonly tops this kind of a bay.

Select the following information by using the drop downs to enter values in feet and inches. We are the professionals for the future of the craft of carpentry. Irregular hips geometry based on billy dillon s article in the sept. Such buildings may have more than four hips in the roofs and they form valleys at the inside corners.

Explore framing complexities that result when roofs of two different pitches intersect. 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. But unlike many of the hip roof bays that get built locally we frame ours with two irregular hips.

Without it the plane of the roof has to be warped to intersect the valley. More often than not i run across roof plans that leave out a second irregular hip. Next click on the hip angles button and then click on the hip valley rafter slope angle text. Easy rafters does not calculate a complete four sided hip roof but rather calculates the common hip and jack rafters for one end of a hip roof.