05/27/2026
Improper slope design around rooftop units can lead to standing water and premature roof deterioration.
In this case, the drain is located on the opposite side, but the structural slope causes water to pond near the HVAC curb instead of flowing properly toward drainage.
Water ponding may seem minor, but over time it can lead to:
• Membrane deterioration
• Seam failures
• Added structural load
• Leaks and interior damage
• Reduced roof lifespan
At A&S Commercial Roofing Solutions, we identify the root cause — not just the symptom. Proper slope correction and drainage planning are key to a long-lasting flat roofing system.
Need your commercial flat roof inspected? Contact us today for professional solutions.