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Marriott Corporation: Modular “Accommodation”

In our last issue, we featured modular/prefab buildings as an up-and-coming construction model, leading to the question of quality-focused integrated performance issues — i.e., how to commission pre-assembled systems and facilities. As the market and confidence in the process continue to grow, we see this as a potentially disruptive (combination of) building technologies for Cx […]

The K-Factor: Calibrating VAV Box Airflow

Why Do We Care? By Lyn Gomes, P.E., CCP, LEED AP, CLCATT Project Manager, Director, BCxA International Board Airflow reported at the variable air volume (VAV) box is actually a measure of total pressure. It gets converted into an airflow by a multiplier, commonly called k-factor, that is generated during test and balance (TAB). K-factor […]