6 Common Problems With Commercial Flat Roofs in Arizona
1. Ponding Water After Storms
Without proper slope, commercial flat roofs hold water that slowly eats away at membranes.
2. Cracked Seams
Heat expansion and contraction stress seams, creating water intrusion points.
3. UV and Heat Damage
Arizona’s sun degrades roofing materials faster, leaving them brittle and prone to leaks.
4. Debris and Clogged Drains
Dust, leaves, and storm debris clog drains, leading to pooling water and roof overload.
5. Blistering or Surface Bubbles
Trapped moisture expands under membranes, creating weak spots that rupture.
6. Shortened Lifespan Without Coatings
Without protective coatings, many commercial flat roofs fail years before their expected lifespan.
Why Arizona?
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Intense UV accelerates roof breakdown.
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Monsoon winds scatter debris that blocks drains.
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Flat designs are inherently vulnerable to water pooling.
Key Considerations
| Problem | Risk | Solution |
|---|---|---|
| Ponding | Structural damage | Tapered insulation |
| Seams | Water entry | Professional resealing |
| UV Damage | Premature failure | Reflective coatings |
| Debris | Drainage issues | Regular cleaning |
| Blistering | Roof breaches | Spot repairs |
| No Coating | Shorter life | Recoat every 5–10 years |
Bottom Line
Flat roofs dominate Arizona’s commercial buildings — but they need extra care. Regular maintenance and protective coatings keep them efficient and storm-ready.
📞 Call Kore Roofing today at (480)-690-9949 or visit koreroofing.com for a commercial flat roof evaluation.
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