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Roofing Cost Calculator

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[Image: roof diagram showing total roof area measurement, pitch angle, ridge line, and areas where flashing is required around chimney and vents]

How Much Does a New Roof Cost in 2026?

The average roof replacement costs $5 to $15 per square foot for asphalt shingles and $10 to $30+ per square foot for premium materials like metal, tile, or slate. For a typical 2,000 sqft roof, expect to pay $10,000 to $15,000 for architectural asphalt shingles or $20,000 to $35,000 for standing seam metal.

Roofing contractors price by the “square” (100 sqft). A 2,000 sqft roof is 20 squares. Material costs per square range from $150 for basic 3-tab shingles to $2,000+ for natural slate. Labor adds $200-$550 per square depending on roof pitch and complexity. Steep roofs (8/12 pitch and above) require safety harnesses and scaffolding, increasing labor costs 25-50%.

Material Lifespan vs. Upfront Cost

When comparing materials, calculate cost per year of expected service life. Asphalt architectural shingles at $3.75/sqft lasting 30 years cost about $0.13/sqft/year. Standing seam metal at $9/sqft lasting 55 years costs $0.16/sqft/year — only slightly more over time despite costing 2.4x more upfront. Slate at $20/sqft lasting 100+ years delivers the lowest cost per year at $0.20/sqft/year.

Hidden Costs to Watch For

Budget an extra 10-15% beyond the base estimate for common add-ons: damaged decking replacement ($2-$5/sqft), additional drip edge and flashing, upgraded ventilation, and code-required ice and water shield in freeze-thaw climates. Chimney flashing and skylight re-sealing are frequently needed during re-roofing and can add $300-$1,000 each.

Pricing data sourced from HomeAdvisor, Roofing Calculator, GAF, RS Means 2026. Costs vary by region. Last updated 2026-04.

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