The amount of vertical climb has for every twelve inches of lateral dimension by which roof pitches are represented.
Standard roof pitch us.
For example when the roof is denoted by six and twelve that means a roof that rises six inches each twelve level inches.
A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch.
The most commonly used roof pitches fall in a range between 4 12 and 9 12.
The terms are slight different by which the roof pitches are symbolized.
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.
Pitches lower than 4 12 have a slight angle and they are defined as low slope roofs.
Pitch angle incline slope they all can be used to refer to the steepness of a roof.
Pitches of less than 2 12 are considered flat roofs even though they may be very slightly angled.
If you want to build a shed garage or other similar type of building then 4 to 6 is a preferable pitch type.
Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12.
An average person can easily and safely walk upon these roofs without need of additional equipment.
The terms are scientific in nature.