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
Metal roofing has specification choices that differ from asphalt replacement. A proposal should state panel or shingle profile, metal and coating, gauge or thickness, exposed or concealed fasteners, clip system, underlayment, ventilation, flashing details, snow retention, dissimilar-metal separation, substrate tolerances, and finish warranty. Those details drive both material and fabrication labor.