2 12 Roof Angle

The exact roof slope in degrees is given by the arctangent.

2 12 roof angle.

Find the inverse tangent of the pitch to find the angle in degrees. 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. 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. Low pitched roofs are generally difficult to maintain and you need special materials to prevent leaks.

This is our pitch calculator which will convert pitch to angle or angle to pitch for half degree roof slope calculations. So use the 12 inch level as a constant run and 18 inch ruler as a variable rise. Conventional roofs are the easiest to construct and you can walk on them safely. They have a pitch ranging from 4 12 to 9 12.

2 12 roof pitch angle 9 46 degrees. Locate its tangent or tan and follow the left row for you to read its corresponding degree. Most roof s have a pitch in the 4 12 to 9 12 range. In degrees 10 2 in 12 or 1 in 6 is considered a minimum.

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. A 12 12 pitch roof has a pitch angle of 45. Angle the angle of a roof is the same as the roof s slope except instead of being. To convert between american roofing ratios and pitch degrees follow these steps.

If a roof rises 2 in a length of 12 this is 2 12 roof pitch. A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. The 12 inch run is considered standard in roof pitch or angle terminologies.

Common roof pitches and equivalent grade degree and radian angles. Definitions vary on when a roof is considered pitched. Simply put it s a shallow roof. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof.

Find all the needed factors in order to determine the pitch angle s degree. That means the roof doesn t shed water as easily as steeper roofs which is why choosing the right type of roofing material is so important. The combination of two numbers are used to display or show the roof pitch. Enter any pitch or fraction of pitch to find angle.

Divide the first part of the ratio by 12 to work out the pitch.