Roof Pitch Vs Angle

Angle arctan pitch arctan 0 25 14.

Roof pitch vs angle.

In the roofing trade the go to term is pitch and it is expressed in terms of 12 inches so the pitch of a roof is determined by how many inches the slope rises for every 12 inches it runs horizontally. Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof. High and low pitch examples two examples at each end of the spectrum. Now it is 3 12 and can be written as 25 or 14.

Pitch angle incline slope they all can be used to refer to the steepness of a roof. Roof pitch is a term describing how steep or flat your roof slope is. Put again this value into an angle. X pitch 12 0 25 12 3.

Also roof pitch angle is sometimes referred to as 12 12 6 12 8 12 and so forth. If the solar system is being ground mounted or tilted up on a flat roof top the tilt angle is also used to determine the row spacing of the array so the front row of modules will not shade the row of modules behind it. Lastly you can have the roof pitch in the form of x 12. The combination of two numbers are used to display or show the roof pitch.

For most home styles roof pitches fall in a range 4 12 a moderate slope up to 8 12 fairly steep. Roofs having a lower pitch have a greater chance of creating water leaks as well as ice damming and so they require an intensive waterproofing system. A steep roof usually sheds water quickly which is quite difficult to work on. Roof pitch and roof angle degrees the tilt angle of the solar array is taken into consideration when the system is being designed.

Examples of extreme slopes range from 1 4 12 almost flat to 12 12 sloping down at a perfect 45 degree angle. Compute the roof pitch as the percentage of rise and run.