The first things that most people think about insulation are temperature control and energy efficiency. While these are incredibly important characteristics of insulation design, they are only pieces of the whole picture. Another benefit that comes with this relatively inexpensive installation is condensation control. In this week’s article, we are going to discuss why condensation should be contained and how insulation keeps it from causing damage.
How it Happens
Before we start talking about the hazards that come with condensation, let’s take a quick dive into the science behind it. All air has varying levels of moisture. This is referred to as relative humidity. It’s important to note that warmer air can hold more moisture than cooler air. Moisture in the air that is cooled to a certain point will condense into a liquid. Think of an ice-cold can of pop set outside in the heat. After a few moments, little droplets form on the can. In industrial and commercial applications, below-ambient systems are vulnerable to the formation of condensation. Common examples of these are refrigeration and cool air duct systems.
Why it’s a Problem
Condensation is the presence of moisture. On certain equipment and in certain areas, this can cause major problems. The top three issues are:
- Risk to Personnel. Condensation can wreak havoc for people in close proximity. It can drip and create slipping hazards, or even find its way onto electrical equipment and run the risk of electrocution or fire. Even if the condensation stays put where it is, it is the perfect environment for mould and mildew to flourish.
- Reduction in Thermal Efficiency. Moisture will decrease efficiency, through compromised insulation or other equipment, leading to higher operating costs, repairs, and even replacements.
- Corrosion Under Insulation (CUI). Pipe corrosion can get out of hand quickly, especially if it’s hidden under insufficient and compromised insulation. If left unchecked, the affected pipe or pipes risk needing to be replaced.
Keeping Dry
With this knowledge in mind, it is apparent that insulation must keep surface temperatures above the dew point to prevent condensation. A professional installer will need to consider all aspects of the system and the conditions it will exist in to choose insulation with an adequate thickness. In addition to this, a vapour retarder may be required to stop any accumulated moisture from damaging the insulation.
Proper installation is essential for an insulation system to be effective at controlling condensation. Industry leaders and business owners with below-ambient operations should take special care to work with a professional contractor to target this unique problem. For access to insulation experts in the Calgary area, contact our team at Westcal Insulation today!
