IMPORTANT NOTICE
Disclaimer
Official usage disclaimer for all calculations, ratios, and material estimations.
Calculation Disclaimer
The calculators provided by RoofingCalcTools are intended strictly for preliminary estimation, educational, and informational purposes. Results should be independently verified by a licensed roofing contractor or structural engineer prior to material purchasing or construction.
Variations in roof geometry, overhang extensions, hip/valley intersections, material waste factor, and local building codes may affect actual field material requirements.