What is the consequence of improper sealing of duct joints?

Improper sealing of duct joints primarily leads to reduced efficiency within a HVAC system. When duct joints are not properly sealed, air can leak out of the system instead of being delivered through the intended pathways. This results in less conditioned air reaching its target areas, meaning that the system has to work harder to maintain the desired temperature and comfort levels. Consequently, energy consumption increases, which elevates operational costs.

In addition to reduced efficiency, there are other implications related to improper sealing, such as increased pressure in certain sections of the ductwork and higher noise levels due to the turbulence created from airflow escaping or entering at unsmooth edges. However, the clearest and most direct consequence of unsealed duct joints remains the significant decrease in the overall efficiency of the system, which directly impacts performance and energy use. This makes reduced efficiency the most critical indicator in assessing the effects of improper sealing.