Roof Framing Hips And Valleys

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.

Roof framing hips and valleys.

Here roofs are constructed with an angle of 90 degrees. 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. Hip and valley roof framing is no so complex as compared to hip roof framing procedures.

Now draw the centerlines for all rectangles that are formed inside. I ll start at the beginning with the easy bits before tackling the more complicated stuff and that way hopefully i ll make it really clear and easy to understand exactly how to set out measure cut and install hip and valley roof rafters. Now outline the biggest rectangle inside the building layout. For any roof slope expressed as x in 12 rise in run the hip and valley factor is determined by finding the square root of rise run 2.

First of all you need to design the layout of building. Find the square root of the result. Divide the rise by the run the run is 12. 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.

Hipped roof construction can seem quite complicated to grasp at first but i m going to break it down and explain each area in detail.