Roof Replacement Cost Calculator

Roofing costs depend on roof slope (pitch), total squares (100 sq ft = 1 roofing square), shingle grade, and tear-off layers. Calculate complete budgets with disposal and leak protection.

Completed architectural shingle roof on craftsman home
Full Roof Tear-off & ReplacementClass 3 architectural dimensional shingles, continuous ridge venting, color-matched aluminum flashing, and integrated drip edge.
Roofers installing shingles with pneumatic nailers
Certified Trade Roofing Crew at Work6-nail high-wind fastening pattern, self-adhered ice & water shield in valleys and eaves, with full OSHA fall safety harness setup.
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Cost Per Roofing Square (100 sq ft)

Material TypeLongevityTotal Installed Cost / Square
3-Tab Standard Asphalt18 – 22 years$380 – $490 / square
Architectural Dimensional Shingles30 – 50 years$490 – $680 / square
Standing Seam Metal50+ years$950 – $1,500 / square

Cost-per-square ranges are national-baseline figures. The calculator adjusts for your metro labor market and roof pitch, so metro-loaded totals can run higher than the table midpoint.

Things Your Roofing Quote Must Specify

  • Plywood Decking Rate: Roofer must state their written per-sheet charge ($75–$120/sheet) for rotted decking discovered after tear-off.
  • Ice & Water Shield: Code requires self-adhering leak barrier along eaves, valleys, and rakes.
  • Magnetic Nail Sweep: Full yard and driveway magnetic sweep to protect tires and pets.

Audit a Roofing Quote Before Paying a Deposit

Check if your contractor bid includes starter strips, drip edge, ridge vent system, and disposal.

Audit Roofing Bid →