Fine Homebuilding Irregular Hip Roof

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

Fine homebuilding irregular hip roof.

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. Such buildings may have more than four hips in the roofs and they form valleys at the inside corners. But unlike many of the hip roof bays that get built locally we frame ours with two irregular hips. 2007 jlc on complex roof geometry.

A hip and valley roof may be part of an irregular structure. Irregular hip geometry framing dxf auto generated dxf cad file of irregular hip geometry drawing each time script is run. 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. Learn more about off angle roof framing.

This type of roof is also called broken back hip and valley roof because the main hips are intconeected by the rafter of gables on one side and the rafter of the valley on the other. 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. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration. Next click on the hip angles button and then click on the hip valley rafter slope angle text.

A hip roof commonly tops this kind of a bay. 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. We are the professionals for the future of the craft of carpentry.

It will display the framing square usage for the slope angle of the hip rafter 27 50055 6 12. Irregular hips geometry based on billy dillon s article in the sept. Explore framing complexities that result when roofs of two different pitches intersect. Dedicated to the art of carpentery roof framing.