Commercial Roof Repair and Replacement in DeSoto
A commercial roof protects inventory, equipment and people. Here is how to keep a low-slope roof working in a hail-prone part of Dallas County.
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Low-slope roofs work differently
Most commercial buildings have flat or low-slope roofs. Water does not shed off them as fast as it does on a steep residential roof, so drains, scuppers and seams do most of the work. When one of them fails, water can pond and find its way through the smallest gap.
The membrane is the main layer of protection. Common systems include TPO, EPDM and modified bitumen, and some buildings use metal. Each one ages and fails in its own way. Our guide on TPO vs. EPDM roofing compares two of the most common.
Hail and flat roofs in the DeSoto area
NOAA's Storm Prediction Center logged 75 hail reports within 10 miles of DeSoto from 2015 through 2024, and 15 of those were 1.75 inches or larger. The biggest, 4 inches, was reported on June 12, 2023.
On a flat roof, hail can puncture or bruise the membrane, crack the insulation board underneath and dent rooftop units and metal edges. Damage may not show until water reaches the deck. After a storm with large hail, a roof walk with photos is the fastest way to know where you stand.
DeSoto sits in Dallas County, in the Dallas-Fort Worth-Arlington metro area, where spring and early summer storms can bring hail, wind and heavy rain in the same afternoon. Wind can peel back loose membrane edges, and a heavy downpour tests every drain at once. A flat roof that handles a normal rain fine may still struggle in a storm like that, so the condition of edges and drains matters as much as the membrane itself.
What we work on
Membrane repairs
Patching punctures, open seams and blisters before water spreads under the membrane.
Drainage
Clearing and repairing drains, scuppers and gutters so water leaves the roof. See flat roof drainage systems.
Flashing and edges
Resealing curbs, walls and penetrations around HVAC units and vents.
Replacement
When repairs no longer hold, a full replacement with a new system. Learn the signs a commercial roof needs replacement.
A simple maintenance routine
Walk the roof twice a year and after major storms.
Keep drains and scuppers free of leaves, bottles and debris that collect after storms.
Watch for ponding that lasts more than a couple of days.
Check seams and flashing around every rooftop unit.
Keep records and photos of every inspection and repair.
Build a plan with our guide on a commercial roof maintenance plan.
Planning work around your business
Roof work can often be scheduled in sections to keep the building open. Read how to reduce business disruption during roof repairs. Before work starts, it helps to agree on access points, where materials will be staged, how rooftop units will be protected and how tenants or staff will be told about noisy days. A clear written scope keeps everyone on the same page. GemSco offers free estimates and financing is available. See our commercial roofing services or roofing in DeSoto.
Frequently Asked Questions
How do I know if hail damaged my flat roof?
Look for dents on rooftop units, vents and metal edges, since they show the hail size. Damage to the membrane itself is harder to see and is easier to confirm up close. A roof walk with photos after a storm with large hail is the most reliable check.
Can a commercial roof be repaired instead of replaced?
Often, yes. Punctures, open seams and failed flashing can be repaired if the rest of the membrane and insulation are sound. When leaks keep returning or the insulation is wet across large areas, replacement usually costs less over time. An inspection shows which case you are in.
Do you work on metal commercial roofs?
Yes. GemSco works on low-slope and flat roofs as well as metal roofs. Metal roofs need attention at fasteners, seams and flashing, and hail can dent panels and trim. We inspect, document what we find with photos and give a free written estimate.
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