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.

Full Roof Tear-off & ReplacementClass 3 architectural dimensional shingles, continuous ridge venting, color-matched aluminum flashing, and integrated drip edge.

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 Type | Longevity | Total Installed Cost / Square |
|---|---|---|
| 3-Tab Standard Asphalt | 18 – 22 years | $380 – $490 / square |
| Architectural Dimensional Shingles | 30 – 50 years | $490 – $680 / square |
| Standing Seam Metal | 50+ 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.