Unequal Hip Roof Framing

All of the principles necessary for framing such a roof have been developed.

Unequal hip roof framing.

Framing a roof of uneven pitch. 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. It is advisable to prepare a framing plan as shown in fig. Where roofs of unequal pitch join it requires careful layout to create equalwidth soffits with equal height fascias.

Set your saw blade bevel angle to the 56 30993 to cut the hip rafter tail plumb cut on the 12 12 roof pitch side of the hip rafter. First of all you need to design the layout of building. Framing a roof of uneven pitch. Drawing a superimposes the common rafters for the two roof pitches and illustrates the problem that occurs when roof layout starts at the outside edge of the exterior walls.

The hips are in red common rafters yellow and for hips to work on a square roof like above each member is equal. Here roofs are constructed with an angle of 90 degrees. Select the following information by using the drop downs to enter values in feet and inches. 90 00 37 32054 52 67946.

Which is the hip rafter side cut angle at the foot of the hip rafter on the 8 12 roof pitch side of the roof. It remains for the student to make the applications to uneven pitches. If the wall plates are all square of equal lengths then the hipped rafters would form a pyramid shape like the picture above normally a roof is rectangle and there are more yellow common rafters. Now draw the centerlines for all rectangles that are formed inside.