Most commercial flat roofs don't die of old age — they die of neglect. Ponding water, clogged drains, and unsealed penetrations do the killing. The fix is a boring, consistent maintenance rhythm.
Twice a year, plus storms
Every spring and fall: clear drains and scuppers, check seams and flashing, inspect around every rooftop unit, and photograph the membrane's condition. After any major hail or wind event, add a documented inspection — commercial insurance claims live or die on this paper trail.
Watch for ponding
Water still standing 48 hours after rain is the number one warning sign on a flat roof. It degrades membranes fast and voids many warranties. If you're seeing ponds, get ahead of it now — a drainage correction is far cheaper than a membrane replacement.
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