{
  "rows": [
    {
      "type": "Siding, vinyl",
      "measure": "Historical industry estimate",
      "value": "50",
      "value_high": "",
      "unit": "years",
      "source": "HUD Residential Rehabilitation Inspection Guide, Appendix C (NAHB industry survey estimates)",
      "url": "https://www.huduser.gov/portal/Publications/PDF/rehabinspect.pdf",
      "data_years": "February 2000 guide; survey dates not stated",
      "read": "2026-11-02",
      "area": "US",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "hud-rehab-2000-siding-vinyl"
    },
    {
      "type": "Siding, aluminum",
      "measure": "Historical industry estimate; range 20–50 years",
      "value": "20",
      "value_high": "50",
      "unit": "years",
      "source": "HUD Residential Rehabilitation Inspection Guide, Appendix C (NAHB industry survey estimates)",
      "url": "https://www.huduser.gov/portal/Publications/PDF/rehabinspect.pdf",
      "data_years": "February 2000 guide; survey dates not stated",
      "read": "2026-11-02",
      "area": "US",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "hud-rehab-2000-siding-aluminum"
    },
    {
      "type": "Siding, wood (depends on maintenance)",
      "measure": "Historical industry estimate; range 10–100 years",
      "value": "10",
      "value_high": "100",
      "unit": "years",
      "source": "HUD Residential Rehabilitation Inspection Guide, Appendix C (NAHB industry survey estimates)",
      "url": "https://www.huduser.gov/portal/Publications/PDF/rehabinspect.pdf",
      "data_years": "February 2000 guide; survey dates not stated",
      "read": "2026-11-02",
      "area": "US",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "hud-rehab-2000-siding-wood"
    },
    {
      "type": "Siding, steel",
      "measure": "Historical industry estimate; source label 50–Lifetime, no numeric upper bound",
      "value": "50",
      "value_high": "",
      "unit": "years",
      "source": "HUD Residential Rehabilitation Inspection Guide, Appendix C (NAHB industry survey estimates)",
      "url": "https://www.huduser.gov/portal/Publications/PDF/rehabinspect.pdf",
      "data_years": "February 2000 guide; survey dates not stated",
      "read": "2026-11-02",
      "area": "US",
      "n": "not published by the source",
      "se_points": "",
      "fact_id": "hud-rehab-2000-siding-steel"
    }
  ]
}