Commercial Roofing in Wylie, TX: Keeping Low-Slope Roofs Dry
For a business, a roof leak means more than a repair bill. It can mean closed rooms, damaged stock and unhappy tenants. Planning ahead costs less.
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A maintenance routine that prevents most leaks
Clear drains and scuppers
Blocked drains are a common cause of ponding and leaks on flat roofs. See flat roof drainage systems.
Walk the seams
Look for gaps, lifted edges and bubbles at seams and laps.
Check the flashing
Curbs, parapets, pipes and edges are where water gets under the membrane.
Inspect after storms
Hail and wind can damage the surface, flashing and rooftop units in one event.
Log everything
Photos and dates make budgeting and storm documentation easier.
Storm exposure for Wylie buildings
Wylie reaches into Rockwall, Dallas and Collin counties, and hail is a regular part of life here. NOAA's Storm Prediction Center logged 93 hail reports within 10 miles of the city from 2015 through 2024, with 32 at 1.75 inches or larger. The largest was 5.25 inches, on April 11, 2016.
Low-slope roofs face hail head-on. Membranes can crack or puncture, coatings can chip, metal flashing dents and rooftop equipment takes hits. Under the surface, insulation boards can be crushed, and that damage may not show until water starts to travel through the roof. An inspection after a significant storm, with photos, is the way to catch it.
Large hail came in 6 of the 10 years from 2015 through 2024. A building owner who waits for a leak before calling a roofer may be finding out about damage from more than one season.
Heat adds its own wear. Membranes expand in the afternoon sun and shrink at night, and over years that movement opens seams and pulls flashing away from walls and curbs. On a roof that also takes hail, those two forces work together, so small openings appear sooner than owners expect.
Roof systems found on commercial buildings
TPO and PVC
Light-colored single-ply sheets with heat-welded seams.
EPDM
A rubber membrane with glued or taped seams. Compare in TPO vs. EPDM roofing.
Modified bitumen
Layered asphalt sheets, often used on smaller buildings.
Metal
Panel and standing seam roofs on low pitches, where fasteners and seams need regular checks.
Signs it may be time to replace
Leaks in several areas that keep coming back after repairs.
Large areas of wet insulation under the membrane.
Membrane that is brittle, shrinking or pulling away at the edges.
Widespread hail damage across the roof surface.
Repair costs each year that are climbing toward the price of a new system.
Ponding that returns in the same low spots no matter how often drains are cleared.
Work with GemSco
GemSco handles residential and commercial roofing, including low-slope and flat roofs. We are fully licensed and insured, with 20+ years of experience, and estimates are free. Visit our commercial roofing page or our Wylie page. For storm damage, see roof insurance claims.
If you manage the building for someone else, ask for a short written summary after each inspection: what was found, what was fixed and what is coming. That record makes budget talks with owners easier and gives you the documentation an insurer will ask for after a storm. Our guide to a commercial roof maintenance plan has a simple format.
Frequently Asked Questions
How do I find a leak on a flat roof?
Water can travel under a membrane before it drips inside, so the ceiling stain may be far from the hole. Roofers trace it by checking seams, flashing and penetrations near the stain and upslope from it. Moisture surveys can map wet insulation over larger areas.
Can work be done without closing the business?
Often, yes. Crews can work in sections, keep entrances clear and plan noisy tasks around business hours. The exact plan depends on the building and the job. Discuss access, parking and safety before the work starts.
How do I document hail damage on a commercial roof?
Photograph the roof surface, flashing, rooftop units and any interior stains soon after the storm. A roofer's inspection report with photos and a written estimate adds detail. Your insurer decides on coverage under the terms of your commercial policy.
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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.