Mark A. Gelfo

Mark A. Gelfo is a managing principal at TLC Engineering Solutions. Gelfo specializes in energy-efficient facility design, sustainable design strategies, energy management, and commissioning. Gelfo serves on the Board of Directors of AABC Commissioning Group, the EMA and is a past vice-chair of the USGBC National LEED Implementation Advisory Committee.


Commissioning May 10, 2022

Will your facility fail when it matters?

Integrated testing steps of building systems beyond HVAC.

By Mark A. Gelfo
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