In the usa the range of standard pitches is anywhere between 4 12 and 9 12.
Roof pitch 1 12.
Two most common methods 4 12 or 4 12 are used for marking the pitch of a roof.
Roof pitch or slope tells you how many inches the roof rises for every 12 inches in depth.
The combination of two numbers are used to display or show the roof pitch.
If a roof increases in height by four inches for every foot of horizontal run it is considered to have a 4 in 12 pitch or just a 4 pitch talk in terms of pitches and you will always be understood in the roofing universe.
The roof slope is only 1 12.
Examples of extreme slopes range from 1 4 12 almost flat to 12 12 sloping down at a perfect 45 degree angle.
Back side is 2 12 pitch.
Contemporary houses often have flat roofs which shouldn t be completely flat but should be around 1 40.
For most home styles roof pitches fall in a range 4 12 a moderate slope up to 8 12 fairly steep.
Front side is 1 12 pitch till about six feet from the ridge.
The first is from the top of the roof.
There is no standard universal roof pitch.
In the uk the typical house has a pitch between 40 50 although 45 should be avoided.
So the pitch of a roof is determined by how many inches the slope rises for every 12 inches it runs horizontally.
I have a client who has a simple gabled roof with solid decking and dimensional shingles with a ridge vent he is looking to go with standing seam.
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.
High and low pitch examples two examples at each end of the spectrum.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
I see the reply above about snap lock.
1 12 roof pitch angle 4 76 degrees.
Roof pitch varies depending on culture climate style and available materials.
An example of a roof pitch would be a 6 12 pitch which means that the roof rises 6 for every 12 inward towards the peak or ridge.
The table below shows common roof pitches and the equivalent grade degrees and radians for each.
At that point it changes slightly to a 2 12 pitch.
There are two suggested ways to measure a roof pitch.
The roofer making the complaint said that he bid that job and lost to a lower bidder while thinking that the only suitable materials would include mule hide epdm or high rib steel.