Myth―An unproven or false collective belief
By J. David Odom and Richard Scott-AIA, NCARB, LEED AP of Liberty Building Forensics Group and Norm Nelson of CH2M
If PTAC units were a federally regulated drug, then each equipment sale would include a list of side effects and cautionary notes. Unfortunately, the opposite is true—each PTAC buyer is provided with a list of unproven expectations and myths. It is these unproven PTAC performance myths, enduring for decades, which have contributed to an outsized number of moisture and mold problems.
Over the past 30 years, our building experts have investigated hundreds of hotel moisture problems (involving over 100,000 guest rooms) and in the process, have seen three repetitive problems that appear to be ignored by the hospitality industry:
- PTAC units cannot ventilate interior spaces.
- PTAC units cannot pressurize hotel guest rooms.
- PTAC units are often ineffective in dehumidifying hotel guest rooms, especially when outside conditions are hot and humid.
Even though PTAC units cannot provide these features, the myths are that hotel industry, including owners, operators, developers, contractors, and designers, believe that they can. Continue Reading The 3 Myths of PTAC Units