Terms of Service
Last Updated: January 1, 2026
Welcome to RoofCalc (accessible at roofcalc.org). By accessing or using our roofing calculators, mathematical tools, articles, and educational materials, you agree to be bound by these Terms of Service.
1. Nature of Services
RoofCalc provides free educational roofing calculators, estimation tools, reference multipliers, and informational guides for homeowners, DIY builders, and construction professionals.
2. Estimating Tool Limitations
Calculations provided on this website are mathematical estimates based on user-provided dimensions and standard construction formulas. Actual jobsite material consumption and replacement costs may vary due to complex roof architecture, local contractor labor rates, municipal building codes, concealed structural rot, and site accessibility.
3. Intellectual Property
All calculator code, design elements, articles, formulas, and visual representations are the intellectual property of RoofCalc. You may use our tools for personal or commercial project estimating; however, automated scraping or unauthorized reproduction of the software is prohibited.
4. Limitation of Liability
Under no circumstances shall RoofCalc or its contributors be liable for any direct, indirect, incidental, or consequential damages resulting from material shortages, material overages, contractor bidding disputes, or jobsite construction accidents.