As building performance expectations rise, confusion often persists between Building Enclosure Commissioning (BECx) and Building Enclosure Testing (BET). While both serve to verify performance, they are distinct processes that meet at key points in design and construction. This session clarifies the relationship between BET and BECx and shows how testing requirements should flow from the Owner’s Project Requirements (OPR) through design, construction, and final functional performance testing.
Historically, many project specifications reference outdated standards such as NIBS 3-2012 and ASHRAE Guideline 0-2005. The industry has since advanced: NIBS 3 has evolved into ASTM E2813, and ASHRAE Guideline 0 is now ASHRAE Standard 202, which together defines the modern foundation for the BECx process. Yet, in practice, many designers still omit Building Enclosure Specification 01-91-15 (or 01-91-19 under the Whole Building Design Guide framework), leaving owners without clear direction on who conducts or verifies enclosure testing.
This session equips attendees with a practical understanding of how to align specifications with current standards, define roles and responsibilities, and integrate enclosure testing as the final functional performance verification of the enclosure system. Using real-world project examples, we’ll explore common ASTM and AAMA testing protocols—such as window spray testing (AAMA 501.2), chamber testing (ASTM 1105/783), and whole-building pressurization (ASTM E779) as tools within the larger commissioning process.
By the end of this session, participants will gain a clear, current framework for discussing BECx and BET with owners, designers, and contractors, establishing a shared language to deliver durable, efficient, and high-performing building envelopes.