Hip Roof Pitch Chart

If this isn t practical then perform the same measurement on the underside of the roof.

Hip roof pitch chart.

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 if you measure 4 inches the pitch of your roof is 4 12. To get results you need to provide roof base dimensions length and width and roof pitch we assume it is identical for all sides. One of users asked us to create calculator which will help him estimate hip roof parameters like rafter s lengths roof rise and roof area.

Hip roof area calculator. Measure with a speed square. All formulae are below the calculator. Hip roof is a roof with a sharp edge or edges from the ridge to the eaves where the two sides meet.

Set the level on the edge of the speed square as shown below then place the heel of the speed square on a rafter or gable edge of the roof. On a related note the pitch properly the slope of a hip or valley rafter will not be the same as the pitch of the adjacent roof sections. Usually they come in the form of a roof pitch diagram chart but other times it will be presented to you in a conversion format. While the slope of the common rafters are expressed as x in 12 the slope of the hip and valley rafter on the same roof will be x in 16 97 so where two roof sections intersect to form a 90 angle a regular hip or valley and each roof.

After that you will have to try and find a good hip roof pitch calculator to make sure you can get the last of the calculations. The pitch of this roof is 4 8 12. Porch roof extensions for hip roof porch extensions from an existing building wall you can use half the calculator results. We included a roof pitch chart below the 7 12 example image and the calculator below that.

Roof pitch degree table. The calculator above can handle much of this math. Image 1 12 to 12 12 roof pitch 7 12 pitch. Enter the extension wall length into wall length and double the extension wall width then minus ridge thickness into the wall width entries.

Select the following information by using the drop downs to enter values in feet and inches. Minus ridge thickness to allow for ridge becoming pole plate roof peak will be slightly higher ridge thick must be same. Measuring roof pitch once you ve figured out the pitch of your roof you can consult the following chart to discover the slope factor and hip valley factor. In essence a roof pitch chart is provided as a rough guide usually by a roofing company to help you see what the average roof pitches tend to be.