Hip Roof Jack Rafters

If more are needed then simply start over by entering the last measurement in the longest jack rafter field.

Hip roof jack rafters.

At the birdsmouth i supplied the 3 inch seat and for the rafter tail a 12 inch overhang with a 2 inch high subfascia plumb cut which dictated the level cut at the heel. Use the hip roof calculator for an easier way to get started. The jack rafters in turquoise connect from the plate in red to the hip rafter and are of different lengths depending on where on the slope they are placed. The first step is to enter the length of the longest jack rafter.

Dab digital smart ear defender. Https amzn to 3239rvw adjustable quick square. A jack rafter is a shortened com mon rafter that may be framed to a hip rafter a valley rafter or both. Select the following information by using the drop downs to enter values in feet and inches.

The total rise of hip and valley rafters is. Depending on the size of the roof most hip roofs will have 4 6 short jack rafters that are spaced out every 20 inches 51 cm between the hip rafters and the king common rafters. Measure the distance between the angled hip rafter and the top of the wall at 20 in 51 cm increments and cut jack rafters to fit. Thus there are hip jack rafters and valley jack rafters.

Rafter is called for only when framing a hip roof but a valley rafter is needed on both hip and gable roofs whenever roof planes intersect. Https amzn to 3adarko hikoki circular saw kit. Span for the main rafters measure from outside of wall to outside of wall. The hip rafters in purple form the roofline and extend from the plate to the ridge.

Rick arnold frequent contributor to fine homebuilding and the journal of light construction presenter at jlc live the katz roadshow the remodeling show. The 7 12 pitch hip roof is framed with 2x6 common and jack rafters on 16 inch centers and with 2x8 hips and ridge. Know that the basic skeleton for the roof has to be erected before any jack rafters can be installed.