Unequal Pitch Hip Roof Calculator

Most of the times it is the same as the pitch the jack rafter is on.

Unequal pitch hip roof calculator.

For example in an equal hip roof with an 8 12 pitch the pitch of the hip rafter would be 8 17. 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. For a start there are various kinds to pick from. Determining the slope and skew angles related to hip and valley beams can be a challenge made even more difficult when the roof slopes on each side if the hip or valley are different.

This slope and skew calculator makes it easy by performing all of the necessary trigonometry for each hanger condition in the roof. Minus ridge thickness to allow for ridge becoming pole plate roof peak will be slightly higher ridge thick must be same. Pitch common unit runs at 12 rise pitch common unit lengths at 12 rise 1 12 pitch common unit run 144 00000 1 12 pitch common unit length 144 49913 2 12 pitch common unit run 72 00000 2 12 pitch common unit length 72 99315 3 12 pitch common unit run 48 00000 3 12 pitch common unit length 49 47727 4 12 pitch common unit run 36 00000 4 12 pitch common unit length 37 94733 5. Porch roof extensions for hip roof porch extensions from an existing building wall you can use half the calculator results.

But here it will be different since the hip rafter doesn t lie at 45 degrees to the commons. Enter the extension wall length into wall length and double the extension wall width then minus ridge thickness into the wall width entries. The pitch of the unequal hip rafter can be expressed in relation to either the main roof or the secondary roof. If it is not the same it does not matter to this calculator.

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. Mark 3 perpendicular lines on the top edge of the hip rafter using these dimensions. Hipdrop tan backingangle 1 2 hip thickness hip drop minor side if the hip is not backed this is the amount to lower the seatcut of the hip to have the corner edge of the hip plane in with the sheathing. Slope and skew calculator.

Next click on the hip angles button and then click on the hip valley rafter slope angle text. It will display the framing square usage for the slope angle of the hip rafter 27 50055 6 12. It is also necessary to select the pitch of the complimentary roof. To get results you need to provide roof base dimensions length and width and roof pitch we assume it is identical for all sides.

This will make it easy for you to get the ratio needed for your shingles but. So what do you need in a good hip roof area calculator. Some people will need to work out certain aspects of the job separately so for example you might want to start by looking for a hip roof shingle calculator. All formulae are below the calculator.

This is the adjacent roof that will share the hip or valley.