Unequal Pitch Hip Roof Framing

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.

Unequal pitch hip roof framing.

The hip roof has four sloping sides. The most common parameter is to maintain an equal ridge height over building sections with differing spans. 90 00 37 32054 52 67946. To keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge.

Find the hip s unit run as in figure 3b. To maintain a consistant ridge height in these situations the roof pitch must be adjusted. Next click on the hip angles button and then click on the hip valley rafter slope angle text. 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 the strongest type of roof because it is braced by four hip rafters. A disadvantage of the hip roof is that it is more difficult to construct than a gable roof. 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. The pitch of the unequal hip rafter can be expressed in relation to either the main roof or the secondary roof.

Framing a roof of uneven pitch. These hip rafters run at a 45 angle from each corner of the building to the ridge. It will display the framing square usage for the slope angle of the hip rafter 27 50055 6 12. It is advisable to prepare a framing plan as shown in fig.

Overview although uncommon there are situations where architectural parameters require off angle hip and valley roof construction. Using a pitch measuring tool that i d made we also determined that the exact pitch of the shed roof was 3 1 2 in 12. It remains for the student to make the applications to uneven pitches. Blind valleys simplify framing.

All of the principles necessary for framing such a roof have been developed. Framing a roof of uneven pitch. Select the following information by using the drop downs to enter values in feet and inches.