Flat Roof Drainage

Ponding Water — When It's Normal, When It's Not

True dead-flat roofs don't exist. Minor ponding that drains within 24-48 hours usually isn't a concern — water still standing days later, in the same spot every time, is different.

What We Check

  • Scupper and drain condition — blocked drains are the most common cause of standing water
  • Membrane condition around drainage points specifically
  • Whether ponding location is consistent (structural) or variable (often just debris)

Frequently Asked Questions

No — brief ponding after rain is normal on most flat roofs. Persistent, days-long ponding is the concern.

Often, yes — sometimes it's a drain clearing or a tapered insulation fix, not a full replacement.

Ready for a free inspection?

No pressure, no obligation — just a clear answer about where your roof actually stands.

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