Clogged roof head drains don’t just cause leaks; they trigger a domino effect of damage:

• Deterioration of Roofing Materials
  Stagnant water accelerates wear on critical roofing components like caulk, flashing, and waterproof membranes. In extreme cases, prolonged exposure weakens the roof’s integrity, leading to sagging or partial collapses—a nightmare for flat-roofed commercial buildings.
• Water Seepage and Structural Damage
  Pooling water near HVAC units, chimneys, or skylights seeps into seams, rotting wooden supports, corroding metal fixtures, and compromising insulation. Over time, this moisture infiltrates interior walls, damaging drywall, electrical systems, and inventory.
• Freeze-Thaw Cycle Damage
  In Chicagoland’s harsh winters, trapped water expands as it freezes, widening cracks in concrete, brick, and roofing materials. Repeated cycles turn minor fissures into gaping cracks, requiring expensive repairs.
• Structural Strain
  Just 1 inch of standing water adds 5-6 pounds per square foot of weight to your roof. For large industrial buildings, this excess load stresses support beams and increases the risk of catastrophic failure.
• Plant and Algae Growth
  Stagnant water fosters moss, weeds, and algae, which degrade roofing materials and create slippery surfaces. Root systems from invasive plants can puncture membranes, voiding warranties.
• Ice Patch Hazards
  In winter, pooled water freezes into treacherous ice patches, endangering employees, customers, and maintenance crews.
• Mosquito Breeding and Health Risks
  Standing water attracts mosquitoes, rodents, and bacteria, turning your roof into a health hazard. For facilities like restaurants, warehouses, or medical centers, this can lead to health code violations.