Which air sealing measure is a leading strategy to alleviate common house pressure problems?

Sealing duct leaks is a leading strategy to alleviate common house pressure problems because it directly addresses the balance of air pressure within the home. Duct leaks can lead to significant imbalances in pressure, resulting in increased energy consumption, drafts, and moisture issues. When ducts leak, conditioned air can escape before it even enters the living space, which affects overall heating and cooling efficiency. By sealing these leaks, the air distribution system can operate more effectively, creating a more balanced indoor environment and mitigating pressure differences that cause unwanted air infiltration or exfiltration.

Improving insulation, while important for energy efficiency, does not directly solve pressure problems associated with air movement. Adding windows may actually exacerbate pressure issues by introducing more openings in the building envelope, which can allow uncontrolled air flow. Increasing ventilation is crucial for indoor air quality but can sometimes create additional pressure imbalances if not properly managed or balanced with the airtightness of the home. Thus, sealing duct leaks is the most effective measure for addressing the specific concerns related to house pressure.