Roof Framing Hips And Valleys

Find the square root of the result.

Roof framing hips and valleys.

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. 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. Hip and valley roof framing is no so complex as compared to hip roof framing procedures. First of all you need to design the layout of building.

The total rise of hip and valley rafters is. Thus there are hip jack rafters and valley jack rafters. 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. A jack rafter is a shortened com mon rafter that may be framed to a hip rafter a valley rafter or both.

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. Divide the rise by the run the run is 12. 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.

Now draw the centerlines for all rectangles that are formed inside.