Kitchen hood testing verifies commercial exhaust and makeup air (MUA) under UL 710, NFPA 96, and the IMC. Required at closeout, after retrofit, and on the annual cycle for restaurants, hotels, schools, and hospitals.
Duct leakage testing (DALT) quantifies how much conditioned air a ductwork system loses into unconditioned space. The procedure is governed by SMACNA leakage class limits. IECC and ASHRAE 90.1 require documentation on most new commercial construction. When duct leakage testing is required on commercial projects First, duct leakage testing is required by the IECC and
Scheduling test and balance is the single most common pinch point on commercial closeouts. The work has to land after mechanical start-up and before final inspection, and the report has to be ready for the engineer’s review before the AHJ walk. Here is how to sequence it. When scheduling test and balance belongs on the
Retro-commissioning existing buildings is the systematic investigation of a building’s current mechanical performance, with corrective scope ranked by ROI. Retro-commissioning existing buildings typically returns 5-15% energy savings within the first year, against a fraction of the cost of equipment replacement. How retro-commissioning existing buildings works First, our agent walks the asset, meets with operations, and
How often to balance a commercial building depends on building type, system age, occupancy changes, and any retrofit activity. The cadence we recommend to balance a commercial building runs from once at closeout through annual partial re-balances on healthcare and lab assets. How often to balance a commercial building by building type First, a Class-A
Hot and cold spots in a commercial building are almost always an airflow distribution issue rather than a thermostat issue. Adjusting setpoints on individual rooms typically just moves the problem. The fix runs through air balancing. Why hot and cold spots happen in commercial buildings First, hot and cold spots almost always trace back to
A TAB report is the closeout deliverable that proves the mechanical system performs to design. Owners, engineers, AHJs, and operators all read it for different reasons. Here is what the document contains and what each section is for. What the TAB report contains Every TAB report we deliver opens with the project metadata — owner,
Test and balance cost on commercial buildings is built from device count, system complexity, access conditions, and reporting requirements — not from a square-footage rule of thumb. Here is what drives the quote and how to read a TAB proposal critically. How a test and balance cost quote is built First, test and balance cost
NEBB vs AABC vs TABB — three TAB certification bodies, three different stamps, one industry. Specifically, the NEBB vs AABC question comes up on most commercial closeout specs because the engineer has to specify one. Owners who understand NEBB vs AABC ahead of bid avoid the most common procurement mistake — spec confusion that leaves
Commissioning vs test and balance is a question that comes up on most commercial closeouts. The two trades overlap on schedule and on equipment touched, but the deliverables are different. Owners and GCs deciding commissioning vs test and balance scope should understand what each delivers and why most commercial projects need both. Commissioning vs test
