Commercial Roofs in Colleyville: Flat Roofs, Membranes and Hail
Low-slope roofs behave differently from homes. They hold water longer, hide damage under the membrane and cost more to ignore. Here is what owners and managers should track.
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Common commercial roof systems
TPO
A white single-ply membrane with heat-welded seams. Popular for its reflective surface. Compare it in TPO vs. EPDM roofing.
EPDM
A rubber membrane with glued or taped seams. Flexible, but seams need regular attention.
Modified bitumen
Layered asphalt sheets, often with a granule surface. Tough under foot traffic.
Metal
Standing seam or panel roofs on low-slope buildings. Fasteners and seams are the usual weak points.
Hail and flat roofs in Tarrant County
Colleyville sits in Tarrant County, in the Dallas-Fort Worth metro area. NOAA's Storm Prediction Center logged 190 hail reports within 10 miles of the city from 2015 through 2024, and 37 of them were 1.75 inches or larger. The largest reached 4 inches on June 11, 2023.
On a flat roof, hail does not always tear the membrane. It can crush the insulation board underneath, crack aged membrane or split seams. Those spots then hold water. Because the damage sits below the surface, it often goes unnoticed until a ceiling tile stains or a tenant reports a drip. A check after each large storm is cheaper than finding wet insulation a year later.
Warning signs on a low-slope roof
Water that stays on the roof two days after rain.
Blisters, bubbles or wrinkles in the membrane.
Open or lifted seams along the field or at edges.
Soft spots when walking the roof.
Clogged drains, scuppers or gutters.
Stains on ceiling tiles inside the building.
Cracked sealant around rooftop units, pipes and curbs.
Loose or bent metal edge and coping along the parapet.
How we approach a commercial job
Survey
Walk the roof, check drains and edges, and look inside for signs of leaks.
Document
Photos and notes on membrane condition, seams and storm damage.
Plan the work
Repair, recover or replace, with a schedule that keeps the business running. See how to reduce business disruption during roof repairs.
Maintain
Set a regular check so small issues get fixed early. Our commercial roof maintenance plan guide shows what to include.
Working with GemSco
A commercial roof decision rarely belongs to one person. Owners, property managers and tenants all have a stake, and insurers and lenders may ask for records. Keep a simple roof file: the system type, the install year, every repair, every inspection report and photos after each storm. That file shortens every future conversation, from budgeting to claims.
Recover versus replace is the biggest call. A recover adds a new membrane over the existing roof when the insulation below is dry and local rules allow it. A full replacement removes everything down to the deck. Wet insulation, multiple old layers or deck damage usually point to replacement. Our article on signs a commercial roof needs replacement covers the decision in more detail.
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. More on our commercial roofing service, or see hail damage roof repair in Colleyville for storm work.
Frequently Asked Questions
Can a flat roof be repaired instead of replaced?
Often, if the damage is local and the insulation below is dry. A core sample or moisture survey shows how much of the roof is wet. When wet areas are large, repairs stop holding and a recover or full replacement is usually the next step.
How often should a commercial roof be inspected?
Many owners plan a check in spring and fall, plus one after any major storm. With large hail reported near Colleyville in 6 of the last 10 years, post-storm checks matter as much as the routine ones. Regular records also help if a claim is needed.
Does ponding water mean the roof is failing?
Not by itself, but it speeds up wear. Standing water stresses seams, adds weight and finds small holes. Clearing drains may solve it. If the deck has sagged, fixing the slope may be needed. See our article on flat roof drainage systems.
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