This tool calculates the total square footage of your roof based on dimensions you provide.
How to Use the Roof Square Footage Calculator
To use this calculator, input the following parameters:
- Length: The length of your roof in feet.
- Width: The width of your roof in feet.
- Roof Pitch: The pitch of your roof in rise/run format (e.g., 4/12).
After entering the values, click the “Calculate” button to see the total roof square footage.
How it Calculates the Results
The roof square footage calculator works by calculating the effective area of the roof based on its size and pitch. The formula it uses is:
- First, it converts the pitch into a slope factor using the equation: slope factor = √(1 + (rise/run)²).
- It then multiplies the dimensions (length and width) by the slope factor to adjust for the pitch.
- The result is the total roof area in square feet adjusted for the pitch.
Limitations
While this calculator provides a good estimate, it has the following limitations:
- It assumes a simple rectangular roof shape. For more complex roof designs, additional calculations will be needed.
- It does not account for features like dormers or overhangs, which will need to be calculated separately and added to the total.
- Ensure all measurements are taken accurately for the best results.