Different roof types fail at varying rates and with different modes of failure. To save you some time, here is a list of general clues indicating roof failure:

  • Does the roof leak in several locations?
  • Do leaks persist despite repeated repair attempts?
  • Do repairs seem to make leaks worse, or do new leaks develop after repairs?
  • How tolerant is the occupancy to leaks?
  • Low leak tolerance means the “failure” decision is reached sooner. It is generally better to reroof at the appropriate moment, rather than pour money and time into ill-advised repairs, but there are exceptions, which means a thorough inspection is essential to the process.

The following may indicate that your roof needs replacing:

  • Missing, cracked or curling shingles
  • Wood shakes are dry, curling and splitting
  • Metal is rusting or pitting
  • Slate is discolored, fracturing or falling off
  • flat roof seams are separating, curling or “alligatoring”
  • Rubber roof seam de-lamination tears
  • Blistering or peeling paint
  • Shingle, sheathing or siding decay
  • Leakage in the attic or chimney after heavy rains
  • Stains on interior walls or ceilings
  • Increased energy bills
  • Rotten fascia or soffit