What changes the price
- Roof area and pitch
- Tear-off layers and deck condition
- Material system and warranty
- Flashing and ventilation details
- Access, season, and permit rules
Scope boundary for this calculator
Roof replacement covers an installed weathering system rather than a material takeoff alone. Measure roof-plane area and identify tear-off layers, deck repair, underlayment, ice barrier, flashing, ventilation, penetrations, edge metal, disposal, access, and warranty. The general roofing materials tool is a quantity worksheet; this replacement model carries the full installed scope.