How To Figure Hip Roof Pitch

All formulae are below the calculator.

How to figure hip roof pitch.

On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof. 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. 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. Instructions enter the length of the building.

For trapezoidal roofs measure the bottom edge the top edge also known as the ridge and the distance between the 2 edges. 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. The hip and valley factor varies according to the slope of the roof as shown in the table below. The square footage of a hip roof area is identical to the square footage of a gable roof of the same size.

The only difference in this calculation to the one for a gable roof area is the amount of the ridge. To get results you need to provide roof base dimensions length and width and roof pitch we assume it is identical for all sides. Hip roof area calculator. The top ridge will be shorter than the one of the gable roof but the four hips will add.

Feet inches enter the overhang of the eaves. Divide the rise by the run the run is 12. 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. Find the square root of the result.

Hip roof is a roof with a sharp edge or edges from the ridge to the eaves where the two sides meet. Inches enter the pitch of the 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. Three easy ways to measure your roof s pitch.

The preview window displays a dimensioned plan view of the hip roof. Use one of these three methods below to calculate your roof s pitch. Calculate the square footage area of a hip roof. Pitch measurement method 1.

Rise 12 enter the square foot one pack will cover. They must must be on the same level. You ll need a level and a tape measure or ruler. Ft enter a waste factor.

Find the dimensions of each of the roof s faces. If the roof has a triangular shape stretch your tape measure along the bottom edge then measure from the peak point down to the center of the bottom edge. Main slope enter or select the slope of the main roof common rafter. Mark a spot on the level 12 inches from one end.

Select the following information by using the drop downs to enter values in feet and inches. 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.