What is the primary function of the barrier approach in HVAC applications?

In HVAC applications, the primary function of the barrier approach focuses on the management of environmental elements to protect the building and its systems. Specifically, the barrier is designed to deflect raindrops and prevent water intrusion, which is crucial in maintaining the integrity of structures and the effectiveness of HVAC systems.

By effectively redirecting rainwater away, barriers help to prevent moisture accumulation within walls or around air handling units, which can lead to mold growth, deterioration of building materials, and reduced efficiency of HVAC systems. When water is prevented from entering the areas it shouldn’t, the HVAC system can operate more efficiently without the added burden of managing moisture issues.

While insulating and enhancing energy efficiency are important functions in HVAC design, they are secondary to the immediate goal of keeping unwanted water out, which compromises not only energy systems but overall building health. Therefore, the barrier approach is primarily related to deflecting raindrops to maintain a dry and effective environment for HVAC operations.