Commercial Roof Repair and Replacement in Mesquite
Older commercial buildings often carry roofs that have been patched for years. Here is how to tell when a commercial roof in Mesquite needs more than another patch.
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Roof types on commercial buildings
TPO and EPDM
Single-ply membranes common on low-slope roofs. Compare them in TPO vs. EPDM roofing.
Metal panels
Used on warehouses and shops. Fasteners and seams need regular checks.
Built-up and coated roofs
Older layered systems that may show cracking, blisters or bare spots.
Steep-slope
Shingle and tile on offices, churches and storefronts.
Weather in the Mesquite area and flat roofs
Mesquite spans parts of Dallas County and Kaufman County. NOAA's Storm Prediction Center logged 49 hail reports within 10 miles of the city from 2015 through 2024, and nine were 1.75 inches or larger. The biggest was 4.0 inches on April 11, 2016.
On a low-slope roof, hail can bruise or puncture the membrane and crack older coatings. Damage is not always visible from the ground or even from a quick walk. Water then moves under the surface, soaks insulation and shows up far from where it entered. After a large storm, a close survey of the roof is worth the time.
Slow drainage is the other issue. Water that sits for days puts stress on seams and finds any small opening. Our guide on flat roof drainage systems explains how drains and scuppers keep it moving.
A practical plan for owners and managers
Survey the roof
We walk it, check seams, drains, curbs and flashing, and photograph damage.
Sort by urgency
Active leaks first, then items that will become leaks, then long-term work.
Choose a path
Repair, recover where conditions allow, or replace. Each option comes with a written estimate.
Schedule with the business in mind
Work is planned to limit disruption. See how to reduce business disruption during roof repairs.
When a commercial roof needs more than repairs
Leaks in several areas at once, far apart from each other.
Wet insulation found in more than a few spots.
Membrane shrinking and pulling away at the edges.
Patches covering a large share of the surface.
Details that cause most commercial leaks
Rooftop units
Curbs and flashing around HVAC units loosen with vibration, heat and storms.
Parapet walls
Coping and wall flashing let water behind the membrane when joints open.
Drains and scuppers
Clogged outlets back water up onto seams that were never meant to sit under it.
Penetrations
Pipes, vents and conduit through the roof each need their own seal, and each one ages.
Edge metal
Wind can lift loose edges and peel the membrane back from the perimeter.
GemSco for commercial roofs
GemSco is family owned, fully licensed and insured, with 20+ years of experience on residential and commercial roofs, including low-slope and flat systems. If storm damage is involved, we document the roof with photos and provide a written estimate. Estimates are free. Learn more on our commercial roofing page.
Older buildings often carry several generations of repairs. Sorting out which ones still work is the first job, and it starts with a survey you can keep on file for the next storm.
Frequently Asked Questions
What is a roof recover?
A recover installs a new membrane over the existing roof instead of tearing it off. It only works when the deck and insulation are dry and sound. A moisture check and a close survey come first, and the estimate should explain why a recover fits or does not.
Can you work while my business stays open?
In many cases, yes. Work can be planned by section, with protection for entrances and parking areas. The plan depends on the building and the scope. We discuss it before the job starts so you can prepare staff and customers.
How do I know if hail hurt my membrane roof?
Look for dents in rooftop units, vents and metal edges. On the membrane, hail can leave small fractures or bruises that are easy to miss. A close survey after a storm, with photos, is the reliable way to find them.
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GemSco Roofing & Solar serves Houston, DFW, Austin, San Antonio and surrounding areas. We’re family owned and fully licensed and insured.