Roof Slope Factor Degrees

The angle for 6 12 is 26 57 and in grades it is described as 50.

Roof slope factor degrees.

Similarly grades and angles can be calculated for the actual pitch using the roof pitch factor formula. Enter 6 into the calculator slope factor 1 1180 multiply the roof length by the gable wall length 40 24 960 multiply this amount by the slope factor 960 1 1180 1073 28 the area of this roof 1073 3 sq. Therefore your slope factor for a 6 12 pitch roof is 1 118. Locate its tangent or tan and follow the left row for you to read its corresponding degree.

To obtain an accurate roof pitch measurement properly measure the rise and run. If you know the roof pitch in degrees find the secant of the slope using a scientific calculator. As 6 is half of 12 it is considered to be 50. Look at the column labeled pitch then look under degrees to get the corresponding amount of degrees.

Last updated july 10 2020 the following table shows the roof pitch rise in run equivalents for all roof slopes in degrees from 1 to 72. That s your roof pitch multiplier. Roof pitch refers to the measurement of the slope of a roof and you express this as a ratio. Roof pitch and corresponding angles.

Grades are the measure of percentage. 8 12 pitch 33 75 degrees. Then you ll be able to measure slope from an unfinished attic space under the roof. Feet the area of a hip roof equals the area of a gable roof with the same dimensions.

For example if the roof pitch is 45 then sec 45 1 414213. Identify the rise and run. For help converting any slope from one way of expressing it to another see roof slope expressed as rise in run degrees and percentage. Factor charts you could calculate the slope factor for every single roof pitch but as a public service many roofing companies provide slope factor charts.

This means if a roof rises 4 in the length of 12 your roof pitch would be 4 12 or 18 43 degrees. Divide its rise by run in. The rise will be equal to the amount of the incline within the given distance or the run that. Other than the 45 roof slope which is 12 in 12 none of the standard roof pitches 5 in 12 6 in 12 etc are equal to a whole degree.

Although there s isn t any standard pitch of a roof used on all kinds of sloped roofs you can determine the range of pitches by using a roof angle calculator and by considering factors like the local climate and roofing materials. On blue prints architects engineers usually display the pitch of a roof in the format shown on the image where number 4 represents a rise and number 12 represents a length.