Scupper, Drain & Internal Drainage

Flat and low-slope roofs rely on scuppers and internal drains to move water off the surface before it ever has a chance to pond. When these openings clog with debris or the membrane around them fails, water backs up, sits, and finds the smallest gap in a seam or flashing. We work on the drainage components themselves and on the membrane details that keep them watertight.

What We Look At

Blocked Drains & Scuppers — cleared using drain snakes and gutter vacuums before standing water finds a way in.
Membrane Around Drainage Points — welded seams at TPO and PVC drains checked with seam rollers and probes, and torch-applied mod-bit details inspected where that system is in place.
Hidden Moisture — moisture meters and handheld infrared cameras trace water that has already traveled under the surface back to its source.
Roof-Wide Conditions — thermal drone imaging spots wet insulation and ponding patterns across the whole roof without anyone walking a fragile surface.

Confirming What's Underneath

On built-up or multi-layer flat roofs, a core sample at a drain area shows exactly what layers are present and how they've held up, which keeps any recommendation grounded in what's actually there rather than guesswork. Every stage is documented with time-stamped photos, giving you a clear record of the drain, the surrounding membrane, and the repair itself.