2 12 Roof Angle

Low pitched roofs are generally difficult to maintain and you need special materials to prevent leaks.

2 12 roof angle.

Common roof pitches and equivalent grade degree and radian angles. 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. If a roof rises 2 in a length of 12 this is 2 12 roof pitch.

Angle the angle of a roof is the same as the roof s slope except instead of being. The 12 inch run is considered standard in roof pitch or angle terminologies. The exact roof slope in degrees is given by the arctangent. Simply put it s a shallow roof.

Enter any pitch or fraction of pitch to find angle. Roof pitch calculator results explained. They have a pitch ranging from 4 12 to 9 12. 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.

2 12 roof pitch angle 9 46 degrees. The combination of two numbers are used to display or show the roof pitch. Locate its tangent or tan and follow the left row for you to read its corresponding degree. 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.

Most roof s have a pitch in the 4 12 to 9 12 range. 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. 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. Divide the first part of the ratio by 12 to work out the pitch.

Find the inverse tangent of the pitch to find the angle in degrees. To convert between american roofing ratios and pitch degrees follow these steps. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. Generally such roofs have a pitch ranging from 1 2 12 to 2 12.

These roofs have a pitch less than 4 12. A 12 12 pitch roof has a pitch angle of 45. In degrees 10 2 in 12 or 1 in 6 is considered a minimum. Definitions vary on when a roof is considered pitched.

So use the 12 inch level as a constant run and 18 inch ruler as a variable rise.