Every commercial laundry, hotels or otherwise, has a duct or series of ducts (the complete exhaust system) that remove the hot, moisture-laden air from dryers and exhaust it outdoors on the roof or via an outside wall. This hot air is filled with lint particles that, over time, deposit inside the duct. Lint can stack up until it is inches thick. Regular Laundry Duct Cleaning is needed to remove the accumulation. Laundry Duct Cleaning is commonly done every three to six months but may be needed as often as monthly. When Laundry Duct Cleaning is ignored, the lint buildup – which can eventually occupy 50-75% of the duct – can cause a lot of problems. Lint may be dispersed into the HVAC systems, thereby being inhaled by the building occupants without their knowledge. If this happens, there will be a lot of negative consequences for the establishment.  To perhaps illustrate the seriousness of this problem better, we will enumerate the many “symptoms” that your laundry duct system is reaching a critical point.The common signs that a laundry exhaust needs cleaning include:

  • Clothes taking too long to dry.
  • Excess lint buildup in the ducts, causing a fire hazard.
  • Dryer units automatically turning off because the heat is not exhausting.
  • Fire dampers in the ducts may malfunction.
  • Higher concentrations of lint in the indoor air.

Green Zone Cleaning Services adopts the HVCA TR/19, International Mechanical Code No. 504, and NFPA 211 as its guiding principles in cleaning laundry duct systems.