Posts tagged PTAC Units
Synopsis of 30+ Years Working With PTAC Units

Over the past few months, there have been tens of thousands of Google searches for PTAC units, using keyword phrases as simple as "what are PTAC units" and "consequences of using PTAC units." While numerous results turn up for these kinds of searches, not many are backed by 30+ years of building forensics experience in the field.

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PTAC Unit Myth 3 of 3 - Dehumidification

This is a 3 part Vlog series of, “The 3 Myths of PTAC Units.”

Over the past 30 years, building experts at Liberty Building Forensics Group (LBFG) have investigated hundreds of moisture problems (involving thousands of guest rooms) and in the process, have observed three repetitive assumptions that appear to be completely ignored by the building industry:

  1. PTAC units cannot effectively ventilate interior spaces.

  2. PTAC units cannot effectively pressurize hotel guest rooms.

  3. PTAC units are often ineffective in dehumidifying hotel guest rooms, especially when outside conditions are hot and humid.

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PTAC Units Myth 2 of 3 - Pressurization

This is a 3 part Vlog series of, “The 3 Myths of PTAC Units.”

Over the past 30 years, building experts at Liberty Building Forensics Group (LBFG) have investigated hundreds of moisture problems (involving thousands of guest rooms) and in the process, have observed three repetitive assumptions that appear to be completely ignored by the building industry:

  1. PTAC units cannot effectively ventilate interior spaces.

  2. PTAC units cannot effectively pressurize hotel guest rooms.

  3. PTAC units are often ineffective in dehumidifying hotel guest rooms, especially when outside conditions are hot and humid.

Read More
PTAC Units Myth 1 of 3 - Ventilation

This is a 3 part Vlog series of, “The 3 Myths of PTAC Units.”

Over the past 30 years, building experts at Liberty Building Forensics Group (LBFG) have investigated hundreds of moisture problems (involving thousands of guest rooms) and in the process, have observed three repetitive assumptions that appear to be completely ignored by the building industry:

  1. PTAC units cannot effectively ventilate interior spaces.

  2. PTAC units cannot effectively pressurize hotel guest rooms.

  3. PTAC units are often ineffective in dehumidifying hotel guest rooms, especially when outside conditions are hot and humid.

Read More
The Mold Tree - A Predictability Chart to Help Avoid Mold and Moisture Problems

Why are we still seeing the same PTAC-related mold and moisture problems today as we saw in the 1980’s? We need to become more cognizant of the basic principles for low-cost systems in very simple applications. Liberty’s team has developed a diagram, using their 30+ years of experience in building forensics, that will help you avoid the potential risks of a catastrophic mold and moisture problem in your PTAC-equipped room.  

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The 3 Myths of PTAC Units

Even though there is strong evidence that PTAC units cannot consistently provide these stated (or implied) features, the astonishing truth is that the entire hotel industry (including owners, operators, developers, contractors, and designers) seems to believe that they can.

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