Framing Hip Roof With Different Pitches

Enter the extension wall length into wall length and double the extension wall width then minus ridge thickness into the wall width entries.

Framing hip roof with different pitches.

The pitch of the unequal hip rafter can be expressed in relation to either the main roof or the secondary roof. 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. For example in an equal hip roof with an 8 12 pitch the pitch of the hip rafter would be 8 17. First of all you need to design the layout of building.

Select the following information by using the drop downs to enter values in feet and inches. Porch roof extensions for hip roof porch extensions from an existing building wall you can use half the calculator results. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration. Now draw the centerlines for all rectangles that are formed inside.

But here it will be different since the hip rafter doesn t lie at 45 degrees to the commons. Learn more about off angle roof framing. 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. Modern residential hip roof construction uses common pitch ratios in general.

It is sometimes also referred to as a dutch gable roof precisely because it contains both roof style features. 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. Now outline the biggest rectangle inside the building layout. Here roofs are constructed with an angle of 90 degrees.

Minus ridge thickness to allow for ridge becoming pole plate roof peak will be slightly higher ridge thick must be same. 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.