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Roof pitch matters when choosingroofing materials.
Roof Pitch
Roof pitch is the angle of a roof.
Roof pitch is designated by two numbers that indicate a ratio.
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The numbers can be separated by either a slash or a colon.
Example
The tape measure reads 2 feet.
So, for every four horizontal feet, the roof dips 2 feet vertically.
The roof pitch is 2:4.
To express the same pitch in a more familiar XX:12 format, multiply both numbers by three.
So, the roof pitch is 6:12.
Modern-stylehomes built in the 1960soften have little pitch, just a barely negligible slope to help drain water.
Visually, this roof appears flat.
This pitch might be as low as 1:12.
For pitches of 2.5:12, the roof requires a double underlayment.
Think of them as taking the middle road in terms of roof pitchnot too flat, not too steep.
Wood and slate shingles do not lock together as tightly as other types of shingles.
Think of an old house with its soaring peaks and you have a picture of a high-pitched roof.