How To Measure The Rise Of A Roof

Then enter the value of the run and choose the unit of measurement from the drop down menu.

How to measure the rise of a roof. Roof slope calculator example of use. Finally enter the value of the rafter length and. Measure the span of the building or consult your blueprints. First enter the value of the rise and choose the unit of measurement from the drop down menu.

For a roof with the ridge above one wall the span is the same as the run. For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally. 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. Calculate the rafter length substituting these values.

The roof slope is the horizontal angle of the roof. Check with the designer to get the unit rise for the roof which is the slope of the roof. Here are the steps to follow for the roof angle calculator. The span of the building is the total width of the.

For more complex roofs you may need to calculate it section by. You ll need to figure out the vertical distance also known as the rise over a 12 horizontal segment also known as the run. Measure the rise of your roof. How to calculate roof rise.

The slope is the same as the pitch. On a 38 degree sloping roof angle t each individual vertical rise of 9 4 y 1 would have a horizontal run x 1 of 12 inches. If this distance measures 4 inches you have a 4 in 12 pitch. Record these values as roof rise over run with the vertical measurement listed first and the horizontal second.

Measure the run length it is the horizontal distance between the roof ridge and the wall of the building. Pitch measurement method 2 2. Let s assume it is equal to 6 m. Let s say it is equal to 1 5 m.