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 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.
Frequently Asked Questions
How often should a flat roof be inspected?
At least twice a year and after major storms. Flat and low-slope roofs hold water longer than pitched roofs, so catching ponding, seam issues, and clogged drains early is the key to a long service life.
What causes most flat roof failures?
Standing water, failed seams, and clogged drainage. Regular inspections and prompt repairs of seams and flashing prevent small issues from becoming leaks.
Need a straight answer about your roof?
Free inspections, honest inspections, and a local team that answers the phone.
Get a Free Inspection
