Roofing Calculator
Calculate roofing materials needed for your roof replacement or repair project
Roof Specifications
Enter your roof dimensions and material details
Or enter custom pitch (rise over 12)
1 square = 100 sq ft of roof area
Roofing Installation Guide
Material Waste Factors
- • Metal Roofing: 5% waste
- • Asphalt Shingles: 10% waste
- • Clay/Concrete Tile: 15% waste
- • Complex roofs: Add 5% extra
Installation Tips
- • Check local building codes and permits
- • Install proper ventilation and flashing
- • Consider weather conditions during installation
- • Use proper safety equipment and procedures