Framing Hip Roof Rafters

Common rafters in a hip roof that meet at right angles on either side of the hip rafter.

Framing hip roof rafters.

Distance on a rafter measured in a plumb line from the top outside edge of the plate to the top edge of the rafter. 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. The major purpose of a hip roof design style is to ensure proper protection to the house from all weather conditions with a minimum requirement of. Select the following information by using the drop downs to enter values in feet and inches.

Roof framing members that go from the top wall plates to the ridge. Hip rafters are the diagonal rafters that span from the ridge at the top down to the corners of the roof. 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. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter.

Hip roof framing rafter cut angle template diagram. Print full scale paper templates cut and fold over wood to mark and cut angles set bevel gauge. 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. Span for the main rafters measure from outside of wall to outside of wall.

Roofs are basically five types. With the right hip roof framing prior to starting construction it becomes easier for all workers to maintain perfect alignment at various corners to ensure proper connections of rafters and ridges. The roof rafters provide integral structural support to the roof. If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters.

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. If using a circular saw or compound miter saw set saw bevel angle to 45 to obtain creeper and hip side angles. Another common design in the northeast is the saltbox which is a gable roof with one longer side.