How To Determine Hip Roof Pitch

Find the dimensions of each of the roof s faces.

How to determine hip roof pitch.

The hip and valley factor varies according to the slope of the roof as shown in the table below. Use a ladder to carefully climb onto the roof. The preview window displays a dimensioned plan view of the hip roof. For any roof slope expressed as x in 12 rise in run the hip and valley factor is determined by finding the square root of rise run 2.

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. Measuring an existing roof 1. Hip roof is a roof with a sharp edge or edges from the ridge to the eaves where the two sides meet. 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.

Set up your ladder beneath one of the roof s hips or sloped faces. Select the following information by using the drop downs to enter values in feet and inches. Main slope enter or select the slope of the main roof common rafter. Span for the main rafters measure from outside of wall to outside of wall.

To get results you need to provide roof base dimensions length and width and roof pitch we assume it is identical for all sides. There are lots of things to think about and consider when taking on a hip roof style so having a reliable all in one hip roof calculator is going to be very useful for this job. They must must be on the same level. Divide the rise by the run the run is 12.

All formulae are below the calculator. X expert source david bitan. 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. To calculate a hip roof select hip from the roof type dropdown list or click on the corresponding button on the toolbar to calculate a hip roof.

One expression of a hip roof pitch based on this formula would be 4 12 meaning a 4 inch vertical rise for every 12 horizontal inches. Here is the online hip roof area calculator which helps you calculate the hip roof parameters such as roof rise common and hip rafters length and roof area based on width height of roof base and the roof pitch identical for all sides.