Building Systems That Work Together
Criterium-Williams Engineers provides building envelope and MEP commissioning for commercial buildings of all types. We evaluate how mechanical, electrical, plumbing, and envelope systems are planned, installed, and operating so they align with project intent and energy requirements.
COSA IB 221 Support (San Antonio)
We guide projects through the City of San Antonio Information Bulletin 221 Commercial Energy Commissioning process—commissioning plans, document review, functional testing, and closeout packages for permit and Certificate of Occupancy.
Why Commissioning Matters
Modern buildings rely on integrated systems, and even small gaps in airflow, air barriers, or controls can drive comfort complaints, moisture risk, and higher energy use. Commissioning helps identify issues early and supports better performance, indoor air quality, and smooth project closeout.
Building Envelope Commissioning (BECx)
- Document/submittal review for air, vapor, and thermal continuity
- Field observation during installation • Air leakage testing (as applicable)
- MEP Commissioning • Review of drawings, submittals, and sequences of operation
- Functional testing of HVAC, lighting, and domestic water systems
- Review of TAB reports and control setpoints • Issue tracking, resolution support, and re-testing as needed
Deliverables
- Commissioning Plan / OPR (as applicable)
- Issue logs tracked to resolution
- Test procedures and results
- Photo and trend-log documentation
- Commissioning Report and COSA IB 221 closeout package
Why Criterium-Williams
- Licensed Professional Engineers, certified and trained for building commissioning
- Texas-focused experience with hot-humid performance challenges and COSA IB 221 requirements
- Action-oriented reporting built for owners, contractors, and municipal reviewers