Hip Roof For Irregular Building

To maintain a consistant ridge height in these situations the roof pitch must be adjusted.

Hip roof for irregular building.

Here we consider two types of hipped roofs see picture. 1 pyramid hip roof roof base is a square roof sides are identical isosceles triangles 2 hip roof roof base is a rectangle two sides are identical isosceles triangles and two sides are identical trapeziums. Such buildings may have more than four hips in the roofs and they form valleys at the inside corners. Select the following information by using the drop downs to enter values in feet and inches.

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 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. Major side roof pitch major.

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 hip rafter roof plane alignment blog for more examples of the hip rafter plumb mark line shift on equal pitched roofs. Dedicated to the art of carpentery roof framing. Major side plan angle.

A hip and valley roof may be part of an irregular structure. A regular hip has equal slopes on all sides while an irregular hip has different slopes on the main roof and hip end roof. The most common parameter is to maintain an equal ridge height over building sections with differing spans. Overview although uncommon there are situations where architectural parameters require off angle hip and valley roof construction.

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 span building width ridge thickness 2. Irregular hips geometry based on billy dillon s article in the sept. We are the professionals for the future of the craft of carpentry.

If the extension length is half the extension length the 2 hips will meet at the existing wall and the roof will come to a peak with no ridge like half a pyramid. A hip roof is a rectangular roof that slopes on all four sides. 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. 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.