Building Sciences

It’s important to keep HVAC equipment clean and free of built-up dirt and debris. Hygienic duct cleaning and the disinfection of system components are also key to achieving proper indoor air quality. While this step assists facilities managers in their efforts to maintain healthy IAQ for occupants, static pressure is another consideration. Static pressure is […]

The building facade serves as its protective shield against external elements, but its significance extends beyond aesthetics and weather protection. It plays a crucial role in determining the indoor air quality (IAQ) within the building. Poorly designed or maintained facades can lead to a host of IAQ issues, which can negatively affect the health and […]

When it comes to the functioning of Heating, Ventilation, and Air Conditioning (HVAC) systems, insulation plays a crucial role in maintaining energy efficiency and temperature control. However, the HVAC insulation health hazards associated with older and degraded fiberglass insulation within single-walled air handler units cannot be overlooked. Over time, as fiberglass insulation breaks down, it […]

Cubic feet per minute (CFM) is a measurement used to quantify the flow rate of air or gas in a system. It represents the volume of air that passes through a specific point in the system in one minute. CFM is commonly used in various industries, including HVAC (Heating, Ventilation, and Air Conditioning) systems, to […]

Historic flooding occurred in New England as a result of a mid summer weather system that dumped torrential rain from Vermont to New York’s Hudson Valley. Officials say the storm has already wrought tens of millions of dollars in damage. In New York, Gov. Kathy Hochul said at a news conference Monday the storm sent […]

Wildfire smoke can infiltrate a building’s HVAC (Heating, Ventilation, and Air Conditioning) system through various pathways, including outdoor air intakes, cracks, gaps, and openings in the building envelope, and leaks in the ductwork. Once inside the HVAC system, the smoke particles can be distributed throughout the building, affecting indoor air quality and potentially causing health […]

Simply put, delta-T refers to the temperature difference between the chilled water entering the air handler unit (AHU) evaporator or chilled water coil and the leaving refrigerant or water. It is a crucial factor in determining the performance and energy efficiency of not only the AHU, but the HVAC system as a whole. Here’s how […]