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Extracted Content

• Water penetration testing . For projects with scope of work including fenestration or exterior doors, apply ASTM 1105 [49] or AAMA 501.2 [50] to provide water penetration of installed exterior windows, skylights, doors, and curtain walls. Otherwise, water penetration testing is not required.

  • Infrared imaging . ASTM C1060 [51] is appropriate for envelope scope of work that includes framed members. For scope that includes a roof with insulation above deck, ASTM C1153 [52] can be used to locate wet insulation. Otherwise, infrared imaging is not required.

Option 2. Monitoring-Based Commissioning (MBCx)

MBCx enables building operators to identify operational issues as they occur, facilitating achievement of the project’s performance goals on an ongoing basis.

Both paths require an EIS that enables visualization, analytics, and automated reporting of monthly energy data and any additional metered data referenced in EAp4: Energy Metering and Reporting ; and a minimum three-year commitment to implement MBCx informed by the EIS.

Path 2 requires enhanced monitoring and software functionality and strengthened engagement with the MBCxP.

Additional considerations: MBCx at the building level Centralized MBCx at the building level complies with the requirements when tenants have access to EIS reporting and visualization of tenant-monitored data and MBCxP reporting of issues identified within the tenant space.

PATH 1. BASIC MBCX

MBCx Plan

Teams must develop a comprehensive MBCx plan that summarizes the complete process building operators will follow for a minimum three-year period. Refer to the rating system language for the specific details that must be included in the plan.

EIS and Monitoring

An EIS empowers operators to review trends, identify anomalies, perform preventative and predictive maintenance, and reduce energy consumption and GHG emissions over the building’s life span.

49 “ASTM 1105”, ASTM International, accessed March 31, 2025, https://www.astm.org/e1105-15.html. 50 “AAMA 501.2”, Fenestration & Glazing Industry Alliance (FGIA), accessed March 31, 2025, https://store.fgiaonline.org/AAMA501.2-15/ 51 “ASTM C1060”, ASTM International, accessed March 31, 2025, https://www.astm.org/c1060-11ar15.html. 52 “ASTM C1153”, ASTM International, accessed March 31, 2025, https://www.astm.org/c1153-10r15.html.

U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 207