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.
Roof pitch vs angle.
Examples of extreme slopes range from 1 4 12 almost flat to 12 12 sloping down at a perfect 45 degree angle.
Now it is 3 12 and can be written as 25 or 14.
Angle arctan pitch arctan 0 25 14.
X pitch 12 0 25 12 3.
Roof pitch is a term describing how steep or flat your roof slope is.
The combination of two numbers are used to display or show the roof pitch.
High and low pitch examples two examples at each end of the spectrum.
The tilt angle in degrees is used when determining the performance of a solar system.
Put again this value into an angle.
Compute the roof pitch as the percentage of rise and run.
Roof pitch and roof angle degrees the tilt angle of the solar array is taken into consideration when the system is being designed.
For most home styles roof pitches fall in a range 4 12 a moderate slope up to 8 12 fairly steep.
Pitch rise run 1 5 6 25.
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.
Lastly you can have the roof pitch in the form of x 12.
Also roof pitch angle is sometimes referred to as 12 12 6 12 8 12 and so forth.
Roof pitch angle and slope factor charts.
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.