Commercial and industrial buildings face a unique challenge in that they must support the health and comfort of multiple people while still carrying out the necessary processes to keep their business running smoothly. HVAC systems are specifically designed to meet this end. Properly installed insulation works to support these systems as well as improve indoor air quality, or IAQ.
Mechanical Lungs
Heating and cooling aside, an HVAC system is to a building what your respiratory system is to your body. Its job is to pull in the fresh air, distribute it, then dispose of stale, contaminated air. The ductwork facilitates this movement. As such, it is constantly exposed to impurities flowing through the system. Bacteria, mould, and fungi can easily hitch a ride on the airflow and find cracks and crevices to settle in. It’s not a problem if you can’t see it, right?
Moisture Management
The United States Environmental Protection Agency names excess moisture as one of the pollutant sources to decrease indoor air quality. Water on its own isn’t the problem. It’s what thrives in water – yes, those nasties we mentioned earlier. Moisture can be introduced into the system due to changes in ambient temperature, certain processes, leaks, or a multitude of other reasons. It’s easy to see how enclosed sheet metal ducts can become a breeding ground for mould and microbial growth.
Fibreglass as Duct Insulation
Reducing the amount of moisture in a system is key, but you’ll never be able to completely eliminate it. All air holds water, thus any system with airflow will have to contend with some level of moisture. The best way to avoid cultivating these dangerous contaminants is to create as inhospitable an environment as possible. That’s where fibreglass insulation comes into play. This material works in two ways to improve IAQ:
- Maintaining consistent temperatures to reduce instances of condensation. No moisture, no mould.
- Puncturing mould spores with its sharp, glass particles. This makes it hard for the mould to attach itself. Additionally, fibreglass without a backing offers no food for the contaminants. Without a place to stick to or nutrients to consume, mould is unable to reproduce and thrive.
Making the Most of Insulation
It’s clear that fibreglass insulation will support indoor air quality by mitigating condensation and being unreceptive to tenacious mould and microbial contaminants. These benefits are essential in any application, commercial or industrial, but can only be achieved with proper installation and maintenance. Sufficient thickness, insulation form (for example duct liner, wrap, or board), and a proper seal are just a few considerations a professional will examine before, during, and after installation. As materials experience wear and tear they will need to be repaired or replaced.
If you’re looking to improve the indoor air quality of your facility, your very own HVAC ductwork may be the culprit! Contact our team of insulation professionals to have your ducts outfitted with the proper insulation to reduce contaminant growth in your HVAC system. Request a quote today!
