Interior Maintenance Company Cleans and Maintains Duct Liners


What are duct liners and what should you know about them? Duct liners are a type of fiberglass internal insulation lining in HVAC and air conveyance systems that tend to break down over time. Often, if the duct systems are not properly cleaned and maintained, the duct liners deteriorate, leaving the remaining fibers to distribute throughout the system and add to the accumulation of particulate debris. Eventually, these fibers are blown into an occupied space and are found as black specks on surfaces throughout a room. Why is this important to know? Fiberglass insulation can be an eye, nose and throat irritant, and may result in discomfort to the occupants of a room. If the insulation becomes wet due to condensation or water leakage, it may also result in microbiological growth within the ductwork.

Therefore, it is critical that duct liners are cleaned to NADCA standards and NAIMA (North American Insulation Manufacturers' Association) recommended practices. In many cases, after cleaning, insulated ductwork can be treated with a paint product designed to coat and "lock-down" the deteriorated fibers. These coating products are specifically designed for HVAC duct systems and provide a new surface and extend the life of the insulation. Many of these coating products contain anti-microbial additives which help to inhibit future mold and microbial growth on the surface of the paint.

How can we help? IMC is capable of refurbishing an air handling unit by stripping out all of the internal insulation lining within an air handling unit. Once stripped, our technicians clean the unit, treat any rusted surfaces with a rust inhibitor coating product, and then treat all surfaces with an anti-microbial coating product. We will then replace the insulation with a closed cell insulation product. This closed cell insulation product will last longer, and will help to inhibit future mold growth and particulate deterioration.

Are you now more educated on duct liners? Let us know if you have any additional questions or problems we can help you with-we are the experts! For more information please visit our website www.imc.cc or call 1-800-220-6547.

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