{
 "updated": "2026-10-15",
 "unit": "USD per sq ft installed",
 "materials": {
  "3-tab asphalt shingles": [
   4.5,
   7.5
  ],
  "Architectural shingles": [
   6.0,
   9.0
  ],
  "Metal roofing": [
   8,
   14
  ],
  "Synthetic slate": [
   9,
   15
  ],
  "Natural slate": [
   15,
   30
  ],
  "Clay / concrete tile": [
   10,
   20
  ],
  "Wood shakes": [
   7,
   13
  ],
  "Flat roof (TPO / EPDM)": [
   5,
   10
  ]
 },
 "source_note": "Roof figures marked as from the 2026 cost guide ($4\u2013$11/sq ft installed; ~$9,000\u2013$18,000 typical replacement; 3-tab $4.50\u2013$7.50, architectural $6\u2013$9, metal $8\u2013$14, synthetic slate $9\u2013$15, natural slate $15\u2013$30) come from the RoofingCostEstimate 2026 cost guide. Tile, wood shake and flat-roof ranges, tear-off add-ons, pitch/story multipliers and city adjustments are editorial estimates based on typical scope, materials and labor \u2014 not survey data. Compare written quotes from licensed local roofers."
}