Georgia Flat Roofs Need a Different Approach
Most commercial flat roofs are actually low-slope roofs. Water drains slowly, so the membrane, seams and drainage all matter more than they do on a steep roof, especially during heavy Georgia rain.
Ponded water is harmful to most roof membranes, and NRCA looks for water to drain within 48 hours after rain. Good design and upkeep help you get there.
Need help now? See our commercial roof repair service or our commercial roofing overview.
Common Flat Roof Systems
| TPO | White, heat-welded single-ply membrane |
| EPDM | Rubber membrane with adhesive or taped seams |
| PVC | Heat-welded single-ply membrane |
| Modified Bitumen | Asphalt-based sheets in multiple layers |
| Built-Up Roofing | Layers of asphalt and reinforcing felt |
Read more about commercial TPO roofing, or ask us which system suits your building.
What Causes Flat Roof Problems in Georgia?
Ponding Water
Water that sits on the roof stresses seams and membranes, and it can find any weak point.
Clogged Drains
Pine straw, leaves and other debris in drains and scuppers are a common and preventable cause of ponding on Georgia roofs.
Failed Seams and Flashings
Seams, curbs and penetrations are the usual places leaks begin.
Hidden Wet Insulation
Water can spread below the membrane, so a small leak may point to a larger problem.
Maintaining a Flat Roof in Georgia
Trade guidance recommends inspections twice a year, in spring and fall, plus after major storms. Our guide explains why roof inspections matter.
Repair
Targeted commercial roof repairs make sense when damage is limited.
Coating
A commercial roof coating may extend the life of a sound roof.
Replacement
When a roof is at the end of its life, plan a full commercial roof installation.
EXPLORE
Our Commercial Roofing Services
See every commercial roofing service we offer to Georgia businesses and property owners.
Commercial Flat Roofing
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WHAT YOU NEED TO KNOW
Flat Roofing Questions
Most have a slight slope so water can reach drains. Building codes generally call for slope on new low-slope roofs.
NRCA looks for roofs to drain within 48 hours after rain. Water that stays longer should be checked.
It depends on your building, budget and goals. TPO, EPDM, PVC, modified bitumen and built-up roofing are all common.
Twice a year, in spring and fall, and after major storms.
It depends on the roof age, how far water has spread, and the insulation condition. An inspection gives you a clear answer.