Building Enclosure Commissioning (BECx) is a quality assurance and risk management process that validates a building’s ability to control air, water, vapor, and thermal transfer in accordance with design intent and real-world performance conditions. Rather than testing after construction is complete, BECx integrates verification from design through construction to confirm that every enclosure performs as intended. The building enclosure is the first and most critical barrier protecting your investment. When air or water leaks occur, the consequences not only lead to energy loss but can also result in material deterioration, mold growth, warranty disputes, and safety hazards. Early commissioning helps prevent those risks by identifying design conflicts, installation errors, and performance gaps before occupancy. At BECI, our commissioning engineers work directly with owners, architects, and contractors to deliver performance validation, documentation, and confidence. Early commissioning ensures performance, reduces risk, and supports measurable ROI. Projects that integrate BECx early benefit from: To see how commissioning supports the long-term performance of existing properties, explore our Asset Evaluations and Reserve Studies services. The ultimate goal of BECx is to achieve a high-performance building enclosure that enhances the building’s overall energy efficiency, durability, and indoor environmental quality while minimizing the risks of defects and failures. We evaluate drawings and specifications to confirm that materials, assemblies, and transitions meet performance expectations for air, water, vapor, and thermal control. Our team provides on-site observation, reviews mock-ups, and performs ASTM and AAMA testing to verify installation quality and real-world performance. We confirm final system integrity through field testing and deliver defensible documentation that validates compliance and long-term enclosure performance.
Our Services
Building Enclosure Commissioning (BECx)
Why Building Enclosure
Commissioning Matters Benefits of Early
Building Enclosure Commissioning
Our Building Enclosure Commissioning Process
BECI’s Building Enclosure Commissioning process encompasses several key phases:
Pre-Design/Design Phase
Pre-Construction/Construction Phase
Occupancy and Operations Phase
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