Home systems longevity

The new home owner is often terrified by essential systems in their home that have limited life expectancies. Knowledge is the best way to assuage these fears. Knowledge is also one of the best ways to calculate the time and cost to replace a major system.  Here is an approximate idea of how long major systems are expected to last

ROOF:

  • ASPHALT SHINGLE / INTERLOCKING – 15-20YRS MINIMUM….
  • ASPHALT MULTI-THICKNESS – 20-30YRS
  • ASPHALT ROLLS – 10YRS
  • BUILT UP ROOFING – 10-20YRS
  • CLAY/CEMENT TILES – 20+ YRS
  • SLATE SHINGLES – 30+ YRS
  • ASBESTOS CEMENT SHINGLES – 30+ YRS
  • SINGLE PLY MEMBRANE – 15-25 YRS

HEATING AND AIR CONDITIONING:
 

  • GAS FIRED HOT AIR – 15-25 YRS
  • OIL FIRED HOT AIR – 20-30 YRS
  • CAST IRON BOILER (HOT WATER OR STEAM) – 30-50YRS  OR MORE….
     
  • STEEL BOILER (HOT WATER OR STEAM) – 30-40YRS  OR MORE….
  • COPPER BOILER (HOT WATER OR STEAM) – 10-20YRS
  • CIRCULATING PUMP – (HOT WATER) – 10-15YRS
  • AC COMPRESSOR (EXTERIOR UNIT) – 15-20 YRS
  • HEAT PUMP – 8-12 YRS
  • HOT WATER HEATER – 10-15YRS

courtesy of Patrick Corbett, VALUED HOME INSPECTORS INC.

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