What does the ABAA standard specification section 01410 state regarding air leakage rates?

The ABAA standard specification section 01410 specifies that air leakage rates for buildings must be verified to be below 0.4 cubic feet per square foot at a pressure difference of 75 Pascals. This standard is vital for ensuring the energy efficiency of buildings and reducing uncontrolled air leakage, which can lead to increased heating and cooling costs, indoor air quality issues, and compliance concerns with energy codes.

Meeting the specified air leakage rate is an important step in evaluating a building's performance in terms of energy efficiency, durability, and occupant comfort. By requiring a verification of rates below this threshold, the standard aims to promote best practices in building airtightness and to encourage the use of appropriate materials and techniques in construction. This focus on reducing air leakage aligns with modern building science principles and contributes to overall building performance.