Introduction
Flat roofs are common on commercial buildings across Texas—but they’re also more vulnerable to failure if not properly maintained. Between extreme heat, UV exposure, stormwater pooling, and poor drainage, Texas puts flat roofing systems to the test. This article breaks down the main reasons flat roofs fail in Texas and what you can do to prevent expensive repairs or premature replacement.
Common Causes of Flat Roof Failure in Texas
1. Ponding Water
Flat roofs aren’t truly flat—they need a slight slope to direct water to drains or scuppers. When drainage systems are clogged or poorly designed, water collects and causes:
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Membrane breakdown
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Added weight load on structure
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Leaks and mold growth beneath the surface
2. UV and Heat Damage
Texas sun is relentless. Prolonged UV exposure breaks down roofing materials—especially older TPO, EPDM, or modified bitumen systems—causing cracking, brittleness, and joint separation.
3. Improper Installation
Many flat roof issues stem from shortcuts during installation. Weak seams, poorly applied adhesives, and inconsistent flashing lead to early system failure.
4. Neglected Maintenance
Out of sight, out of mind—until there’s a problem. Without routine inspections, small issues like debris buildup, split seams, or degraded flashing go unnoticed and worsen over time.
5. Storm Damage
Texas storms bring hail, high winds, and debris that can puncture membranes or dislodge flashing. Damage may be invisible from the ground but can lead to major leaks later.
How to Prevent Flat Roof Failure
Schedule Biannual Inspections
Check your flat roof twice a year—typically in spring and fall—and after any major storm event. Early detection is key.
Keep Drains Clear
Remove debris from all roof drains, scuppers, and gutters. Standing water is one of the top causes of membrane failure.
Maintain Flashing and Seals
Inspect around HVAC units, skylights, and edge metal. These penetration points are vulnerable and need consistent sealing and monitoring.
Invest in Reflective Coatings
Reflective or “cool roof” coatings help combat UV breakdown, reduce heat load, and extend membrane life.
Work With a Qualified Flat Roofing Contractor
Choose a roofing company that specializes in flat systems and uses manufacturer-approved installation methods. Poor workmanship is one of the biggest risks.
Flat Roofing Materials We Service
At Integris Roofing + Construction, we install and maintain a full range of flat roofing systems:
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TPO (Thermoplastic Polyolefin)
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EPDM (Ethylene Propylene Diene Monomer)
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Modified Bitumen
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Built-Up Roofing (BUR)
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PVC Roofing Systems
We provide installation, restoration, coatings, inspections, and repairs for commercial and industrial buildings throughout Texas.