The problem of dirt collecting around ceiling diffusers has been a concern in the air distribution industry for a long time. Some people have asked about this dirt and the impact on indoor air quality (IAQ).
A full line of fire dampers and ceiling radiation dampers is available for use wherever air distribution system duct-work penetrates fire-rated barriers. The line of dampers includes both gravity and dynamic models that are available in a wide variety of sizes for specific requirements, including hard ceilings.
Sweating presents itself in an air distribution system as moisture that forms on the faces of lay-in diffusers and T-bar grids adjacent to those diffusers, where this moisture collects and drips into the areas below. While sweating may be a simple annoyance, it may also be potentially dangerous. Either way, it is a symptom of a larger problem.
Patrick Baldwin-McCurdy fields daily indoor air temperature complaints from employees and students; however, Seattle University’s lead buildings control technician rarely hears HVAC complaints from the college’s new library addition featuring under floor air distribution (UFAD).