Hip Roof For Irregular Building

Here we consider two types of hipped roofs see picture.

Hip roof for irregular building.

Irregular hips geometry based on billy dillon s article in the sept. A hip and valley roof may be part of an irregular structure. 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. Major side roof pitch major.

A hip roof design refers to a roof where the roof sides slope downwards from a middle peak with the rafter ends meeting the exterior walls of the house. 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. To maintain a consistant ridge height in these situations the roof pitch must be adjusted. Irregular hip geometry framing dxf auto generated dxf cad file of irregular hip geometry drawing each time script is run.

Minor side roof pitch minor. A hip roof is a rectangular roof that slopes on all four sides. The roof extension length must be at least twice as long as its width or the 2 hips will meet before they reach the existing building wall. View the irregular hip roof valley rafter framing blog for how to layout the hip rafter backing depth mark and the hip rafter side cut mark for hip rafter side cut angles.

Major side plan angle. 2007 jlc on complex roof geometry. View the hip rafter roof plane alignment blog for more examples of the hip rafter plumb mark line shift on equal pitched roofs. Each of the four sides of the roof slope downward there are no upright or vertical parts no gables etc on a hip roof.

Major side roof span building width ridge thickness 2. We are the professionals for the future of the craft of carpentry. Select the following information by using the drop downs to enter values in feet and inches. Such buildings may have more than four hips in the roofs and they form valleys at the inside corners.

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 most common parameter is to maintain an equal ridge height over building sections with differing spans. Dedicated to the art of carpentery roof framing. Overview although uncommon there are situations where architectural parameters require off angle hip and valley roof construction.