Roof Height Based On Pitch

Rafters are nailed to the ridge board and run down to overhang the exterior wall.

Roof height based on pitch.

Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Slope angle degree. The pitch of a roof determines the height of the ridge board that runs the length of the house. If your goal is to only calculate the roof height do not enter any numbers in wall height field and only use building width and roof pitch fields.

Measuring a roof pitch. To find slope divide rise by run and multiply it by 100 and for angle take tan 1 of s n. Angle the angle of a roof is the same as the roof s slope except instead of being. See the image below for more explanation on rise run and pitch.

For example if the peak is 4 feet and the total roof with is 20 feet the total rise is 4 feet or 48 inches. A 1 in 12 roof pitch roof rises 1 inch for every 12 inches of run. Rise and run calculator. Carpenters measure roof pitch as inches of rise per 12 inches of run.

The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. If a roof increases in height by four inches for every foot of horizontal run it is considered to have a 4 in 12 pitch or just a 4 pitch talk in terms of pitches and you will always be understood in the roofing universe.

If you know the total height of the peak and the width of the roof you can also find the pitch with a little math. Roof pitch calculator results explained. A 12 in 12 pitch is a steep 45 degree angle roof. As a reminder please don t forget to add height of rafter thickness of roofing material and ridge vent to the number that you ll get using our calculator.