The Value of enclosure commissioning
Enclosure Commissioning with McCownGordon
Building Enclosure Commissioning (BECx) is a systematic process designed to ensure that building envelope elements such as roofs and windows are properly designed and installed to achieve intended performance, thereby enhancing durability and energy efficiency. This process is vital for controlling air and water leakage, improving thermal insulation, and elevating occupant comfort. BECx is most effective when integrated early in the design phase, involving a Building Enclosure Commissioning Authority (BECxA) who establishes performance requirements, reviews design documents, performs inspections, and provides training for ongoing maintenance. The cost of BECx typically falls between 0.5% and 1.5% of total construction costs, with benefits that often outweigh the initial expense. It is also applicable to existing buildings through diagnostic evaluations and testing to ensure the envelope supports overall system performance alongside traditional commissioning efforts.

Why is BECx critical?
The building enclosure is the primary shield against environmental elements. BECx helps to:
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Limit air and water infiltration, reducing repair costs.
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Improve thermal efficiency, lowering energy bills.
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Enhance occupant comfort and indoor air quality.
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Prolong the service life of building materials and systems.

Enclosure Commissioning Key Benefits
- Energy Efficiency: Up to 30% reduction in heating and cooling costs.
- Moisture Management: Prevents water infiltration, reducing mold and structural damage.
- Extended Building Life: Reduces long-term maintenance and premature system failures.
- Improved Comfort: Eliminates drafts, temperature fluctuations, and condensation issues.
- Lower Operational Costs: Identifies construction defects early, reducing warranty claims.
SERVICES WE PROVIDE
- Pre-Design & Design Reviews: Assess materials, detailing, and constructability.
- Construction Phase Inspections: Verify installation quality.
- Performance Testing: Conduct air barrier, infrared thermography, and water infiltration tests.
- Operational Support: Train facility staff on long-term maintenance best practices.

Jereme Nollett, PE, CCP, EMP
Commissioning Executive

BECx IMPACT IN NUMBERS
- Air leakage testing identifies savings opportunities up to $0.20 – $0.40 per SF per year.
- Building enclosure failures account for 70% of construction defect claims—BECx mitigates risk.
- ROI of BECx typically ranges from 2 to 6 years, depending on project scale.