Roof pitch chart

What is Roof Pitch?

The roof pitch, also known as roof slope or roof angle, refers to the steepness or incline of a roof. It is typically expressed as a ratio, a fraction, or in degrees, indicating the vertical rise in inches for every horizontal foot.

Flat roof slope calculator

For example, a roof with a 4:12 pitch rises 4 inches vertically for every 12 inches horizontally.

The Roof Pitch Calculator is an essential tool for calculating key parameters of a roof based on its rise and run.

It provides the following outputs:

1. Rafter Length: The hypotenuse or sloped length of the roof.
2. Roof Pitch (x:12): The slope expressed as a ratio (rise over a 12-inch run).
3. Roof Pitch (Degrees): The angle of the roof slope in degrees.
4. Roof Pitch (%): The slope expressed as a percentage.

Key Formulas for Roof Pitch Calculations

1.

Calculate Rafter Length

The rafter length is the hypotenuse of the right triangle formed by the roof's rise and run. Using the Pythagorean theorem:

Rafter Length=Run2+Rise2​

Where:

• Run = Horizontal distance (in feet or inches)
• Rise = Vertic
  how to calculate roof pitch in degrees in meters
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