How To Measure The Rise Of A Roof

The next step is to measure the pitch also referred to as the roof slope of the roof deck.

How to measure the rise of a roof.

The slope is the same as the pitch. Total roof rise or change in elevation for a 38 degree sloping roof angle t with one giant rise or step of 7 8 feet to the center of the attic y 2 would have total a run x 2 of 10 feet. How to calculate roof rise. Finally enter the value of the rafter length and.

Measure the run length it is the horizontal distance between the roof ridge and the wall of the building. 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. Then enter the value of the run and choose the unit of measurement from the drop down menu. First enter the value of the rise and choose the unit of measurement from the drop down menu.

8 inches and you have an 8 in 12 pitch. Calculate the rafter length substituting these values. Measure the span of the building or consult your blueprints. If this distance measures 4 inches you have a 4 in 12 pitch.

Pitch measurement method 2 2. For a simple gable roof the span wall to wall will be twice the size of the run wall to ridge horizontally. Check with the designer to get the unit rise for the roof which is the slope of the roof. Let s say it is equal to 1 5 m.

The roof slope is the horizontal angle of the roof. The span of the building is the total width of the. Measure the rise of your roof. You ll need to figure out the vertical distance also known as the rise over a 12 horizontal segment also known as the run.

For a roof with the ridge above one wall the span is the same as the run. Let s assume it is equal to 6 m. Roof slope calculator example of use. Record these values as roof rise over run with the vertical measurement listed first and the horizontal second.