Which system is most impacted by changes to the building envelope?

The building envelope plays a crucial role in the overall energy efficiency and effectiveness of a building's HVAC (Heating, Ventilation, and Air Conditioning) systems. The envelope includes the walls, roof, windows, and foundation, which serve as barriers to external environmental factors such as temperature, humidity, and air quality.

Changes to the building envelope directly influence how much heat or cold enters or escapes a building. For instance, upgrading insulation or installing high-performance windows can significantly reduce the workload on heating and cooling systems, leading to energy savings and improved comfort. Additionally, proper sealing of the building envelope minimizes drafts and air leaks, which can disrupt the intended performance of HVAC systems.

While electrical, plumbing, and landscaping systems are important aspects of a building's overall infrastructure, they are less directly affected by changes to the building envelope. Electrical systems primarily deal with power distribution, plumbing systems manage water supply and drainage, and landscaping systems focus on the external environment surrounding the building. Consequently, HVAC systems are the ones most reliant on the performance and integrity of the building envelope.