Roof Area Calculator
Lightweight duplicate of the roofing calculator focused on area output for takeoffs.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
Step 3
How to use this calculator
Same inputs as the roofing calculator without extra material lines.
What the math is doing
Identical slope factor math as the roofing calculator.
Frequently asked questions
Measured plans?
Use plane areas from CAD if available.
Multi-level?
Sum each roof level.
Parapet walls?
Exclude wall tops unless they receive roofing.
Drip edge?
Linear feet of perimeter is separate.