{
  "@context": "https://freecostcalculator.com/api/cost/v1",
  "@type": "CostEstimate",
  "version": "1.0",
  "service": "roofing",
  "serviceTitle": "Roof Replacement Cost Calculator",
  "category": "home-improvement",
  "state": "DC",
  "stateName": "District of Columbia",
  "lastUpdated": "2026-04-12",
  "confidence": "moderate",
  "methodology": "https://freecostcalculator.com/methodology/",
  "corrections": "https://freecostcalculator.com/corrections/",
  "source": "FreeCostCalculator.com",
  "license": "CC BY 4.0 with attribution",
  "costDrivers": {
    "permits": {
      "model": "pct_of_construction_cost",
      "pct": 1.8,
      "source": "nahb_2024"
    }
  },
  "averageProjectCost": {
    "low": 7524,
    "mid": 9674,
    "high": 12899
  },
  "referenceEstimate": null,
  "inputs": [
    {
      "name": "sqft",
      "type": "number",
      "label": "Roof Area (sq ft)",
      "range": {
        "min": 100,
        "max": 50000
      }
    },
    {
      "name": "pitch",
      "type": "select",
      "label": "Roof Pitch",
      "options": [
        "low",
        "medium",
        "steep"
      ],
      "range": {}
    },
    {
      "name": "material",
      "type": "select",
      "label": "Roofing Material",
      "options": [
        "asphalt",
        "tile"
      ],
      "range": {}
    },
    {
      "name": "stories",
      "type": "select",
      "label": "Number of Stories",
      "options": [
        "1",
        "2",
        "3"
      ],
      "range": {}
    }
  ],
  "links": {
    "calculator": "https://freecostcalculator.com/roofing-cost-calculator/district-of-columbia/",
    "compare": "https://freecostcalculator.com/roofing-cost-calculator/compare/",
    "allStates": "https://freecostcalculator.com/roofing-cost-calculator/",
    "api": "https://freecostcalculator.com/api/cost/v1/roofing/district-of-columbia.json"
  },
  "citation": {
    "text": "Roof Replacement Cost in District of Columbia: typical range $7,524 - $12,899. Source: FreeCostCalculator.com, updated 2026-04-12.",
    "url": "https://freecostcalculator.com/roofing-cost-calculator/district-of-columbia/"
  }
}