Roofing guide

Flat and low-slope roofs: what to know

By the Ortiz Roofing team · Updated 2026-11-10

Quick answer: Low-slope roofs on porches, additions and commercial buildings fail mostly at seams and where water ponds. Modified bitumen and other membrane systems handle them well when installed with proper slope to drains.

Where they leak

Seams, edges, penetrations and ponding spots.

Systems that work

Modified bitumen and similar membranes are common choices.

Keep water moving

Clear drains and scuppers and fix spots where water sits.

  • Ponding water
  • Clogged scuppers
  • Open seams

FAQ

Can a flat roof be repaired?

Often yes, if the damage is local.

Do you do commercial roofs?

Call (386) 313-6055 to talk about your building.

How do I know if water is ponding?

Look for spots that stay wet more than a day or two after rain.

Want someone to just look at it?

Free estimates across Flagler, Volusia, St. Johns, Clay, Putnam and Greater Orlando.

Get a free estimate Call (386) 313-6055
Written and reviewed by the Ortiz Roofing team · Licensed CCC1334839 · Last updated

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