Framing Hip Roof With Different Pitches

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.

Framing hip roof with different pitches.

Discover 5 types of hip roofs plus 22 examples of many houses that incorporate all the different hipped roof styles. Measure distance a along the unit run and mark. As compared to global roof framing hip roof framing is more difficult because it consists of four sides with variable lengths instead of two sides. The ridge board is centered here in terms of length as well as width.

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. Hip roofs can be generally framed into a large variety of sizes that can be t or l shaped and may need a more complex frame. A dutch hip roof is a combination of both the hip roof and gable roof features. Explore framing complexities that result when roofs of two different pitches intersect.

The most common hip roof pitch ratios fall between 4 12 and 6 12 although variations occur based on factors such as snow rain and wind conditions which is because steeper hip roof pitch ratios allow for less accumulations of snow and rain on the roof and lower ratios provide less wind resistance. It is sometimes also referred to as a dutch gable roof precisely because it contains both roof style features. Select the following information by using the drop downs to enter values in feet and inches. 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.

A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration. The gable portion of a dutch hip roof is usually placed at the end of the roof ridge and sits on top of the plane of the hip roof. From simple to very complex computer generated hip roof designs. Place your square on the side of the hip rafter that will face the main roof using the hip pitch for that roof 8 155 8.

Blind valleys simplify framing. 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. This is the line of backing.