2 12 Roof Angle

Common roof pitches and equivalent grade degree and radian angles.

2 12 roof angle.

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. The 12 inch run is considered standard in roof pitch or angle terminologies. Generally such roofs have a pitch ranging from 1 2 12 to 2 12. In degrees 10 2 in 12 or 1 in 6 is considered a minimum.

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. Conventional roofs are the easiest to construct and you can walk on them safely. Simply put it s a shallow roof. Most roof s have a pitch in the 4 12 to 9 12 range.

Divide the first part of the ratio by 12 to work out the pitch. Roof pitch calculator results explained. Definitions vary on when a roof is considered pitched. Enter any pitch or fraction of pitch to find angle.

A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. 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. Angle the angle of a roof is the same as the roof s slope except instead of being.

A 12 12 pitch roof has a pitch angle of 45. Find the inverse tangent of the pitch to find the angle in degrees. 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. These roofs have a pitch less than 4 12.

They have a pitch ranging from 4 12 to 9 12. Low pitched roofs are generally difficult to maintain and you need special materials to prevent leaks. To convert between american roofing ratios and pitch degrees follow these steps. 2 12 roof pitch angle 9 46 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 combination of two numbers are used to display or show the roof pitch. The exact roof slope in degrees is given by the arctangent. Locate its tangent or tan and follow the left row for you to read its corresponding degree.

Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof.