How To Frame A Hip Roof With Different Pitches
The amount to be removed from each side must be separately determined according to the angle the hip makes with the plate.
How to frame a hip roof with different pitches. First of all you need to design the layout of building. The backing of hips on roofs of uneven pitches while the amount to be removed on each side of the hip will vary is determined by the principles developed in sec. Learn more about off angle roof framing. How to use the hip roof framing calculator.
Select the following information by using the drop downs to enter values in feet and inches. Now draw the centerlines for all rectangles that are formed inside. Lengths of hip and valley jacks are determined as in sec. Explore framing complexities that result when roofs of two different pitches intersect.
Discover 5 types of hip roofs plus 22 examples of many houses that incorporate all the different hipped roof styles. 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. This is the line of backing. Blind valleys simplify framing.
The hip roof can have all four sides the same measurement or two long sides and two short sides. Construct a 45 degree line from outside as well as inside corners and extend these lines to intersect the centerline. 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. From simple to very complex computer generated hip roof designs.
Repeat the same procedure on the side of the hip that faces the secondary roof using the hip pitch for that roof and measuring distance b. A hip roof or a hipped roof is a style of roofing that slopes downwards from all sides to the walls and hence has no vertical sides. 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. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration.
More information can be found about the shape and design features of hip roofs in wikipedia s article on hip roofs then you can return here for how to build yours. Measure distance a along the unit run and mark.