Climate Considerations to Help You Avoid a Mold & Moisture Problem

Unique challenges presented in all different types of climates (especially hot and humid climates) are often overlooked by the design and construction community.

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Why Buildings Fail

The primary reason we are not coming to grips with this far-reaching problem is simple:  the design professionals entrusted with building performance are not receiving adequate feedback on the performance of their previous buildings.

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Hotel Renovation Threatened Due to Unexpected Mold on Plaster Walls

There’s an assumption in the hotel industry that plaster walls are not susceptible to mold growth--but don’t let your guard down. Experts at Liberty Building Forensics Group (LBFG) helped guide a hotel renovation team that encountered an unsuspecting mold problem in the hotel’s plaster walls that could have cost millions of dollars in remediation and lost room revenue.

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Monitor These 9 Vital Signs to Avoid Widespread Mold & Moisture Problems in Your Building

Unique vital signs can help determine the health of a building as it relates to a mold and moisture problem, similar to measuring the health of a human body by taking vitals. This analogy is applicable to many different building types and construction phases. This kind of analysis can help locate the hidden risks of a mold and moisture problem and can also be beneficial when planning a renovation by bringing awareness to potential moisture-related problems, allowing owners to course-correct, budget, and plan accordingly.

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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.

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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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Preventing Modular Hotel Mold and Moisture Problems in the Warm and Humid Southeast

The emergence of modular construction as an option for new construction is becoming mainstream. While the reasons why have been reported on extensively, what has not been reported is that the modular construction industry has been plagued by mold and moisture problems, especially on projects located in warm and humid climates like the Southeast U.S. Both wood-frame and steel-frame modular construction units have experienced condensation problems in crawl spaces, within marriage walls, and within ceiling-to-floor cavities that have not only resulted in deterioration of the wood and corrosion of metal floor pans, but have also led to damaged wallboard and mold issues.

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Hot, humid climate makeup air conundrum: The moisture and mold risks that developers, designers and installers continue to take

But why?! Hasn’t there been enough lessons learned through moisture/mold construction litigation in the hospitality, multi-family apartment high rise, student and military housing sectors that show that dumping the make-up air to the corridor is a risky proposition. Apparently not?!

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Air Barrier and Building Mold and Moisture Problems

Imagine the following scenario: you just designed your newest project to meet the most current whole building air leakage standards, and your mechanical engineer sub consultant designs an HVAC system that includes one of the latest energy recovery strategies.


Now fast forward to the first summer of operation. You get the dreaded call that your design has led to catastrophic mold and moisture problems that are keeping your client from being able to rent rooms and are resulting in unfavorable complaints about visible mold and deleterious mold odors being made on TripAdvisor.

Download the eBook Now!

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The Single Most Important Factor in Reducing the Risk of A Mold and Moisture Problem In Your Next Project

Imagine the following scenario: you just designed your newest project to meet the most current whole building air leakage standards, and your mechanical engineer sub consultant designs an HVAC system that includes one of the latest energy recovery strategies.


Now fast forward to the first summer of operation. You get the dreaded call that your design has led to catastrophic mold and moisture problems that are keeping your client from being able to rent rooms and are resulting in unfavorable complaints about visible mold and deleterious mold odors being made on TripAdvisor.

Download the eBook!

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Preston Moreau
The Incredible Predictability of Moisture Problems

Suppose there was a tool that could predict, before a single penny was spent on construction, the likelihood of whether your building would fail. Not only that, but this tool could also provide you with enough information to make significant design changes that would dramatically decrease any risk factors.

Would you be interested? Of course you would! Here it is! Download it now!

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Moisture Damage Assessment Tool

Significant moisture and mold problems in new construction are often attributed to the so-called “drying out of the building”. In reality, however, such problems are rarely associated with moisture released from new construction materials. In general, the moisture is instead introduced from some external source. Knowledge is power!

Download your copy of this critical resource to help you recognize problems in your buildings before they become lawsuits!

Download the eBook Now!

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Preventing Mold & Moisture Problems

Keeping the Moisture Out: the Single Greatest Technique for Reducing Moisture and Mold Lawsuits


Moisture and Mold can cause serious building problems, resulting in major construction lawsuits. That is why Liberty is offering a free guide to the ABA Construction Forum and to your clients, Preventing Moisture and Mold Problems – Design and Construction Guidelines. This guide can help you avoid the detrimental issues that moisture and mold can create in the building process.

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