Posts in HVAC Performance, Vlog
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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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
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 Hidden Risks Of Green Buildings: Avoiding Moisture & Mold Problems

Some experts have described the green building movement as “the #1 mega-trend that will change the rules of global business.”

The great irony of building green in the Southeast is that the very concepts that are intended to enhance a building’s performance over its entire lifetime are many of the same practices that make a building highly susceptible to catastrophic moisture and mold problems during its first few summers of operation.

While LEED-certified buildings have many positive benefits, there is strong evidence to suggest a direct correlation between new products/innovative design and building failures — especially in Florida’s humid climate. Simply put, departing from the “tried and true” often means increasing the risk of building failure.

This article presents “must-know information” if you’re considering green buildings!

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Mold and Moisture Prevention

Published by NCARB

“An alarming number of buildings suffer from moisture and mold problems. No single document can address all the issues related to moisture intrusion and mold growth. However, we believe this monograph addresses a significant proportion of the problems that architects will encounter in the design and construction of a typical commercial building.”

— J. David Odom, as quoted on NCARB.org

Features:

  • This manual looks at the key issues that can help owners, designers, and contractors work together to improve decision-making. Design professionals will discover what they need to do in order to develop good building performance.

  • The end of the schematic design and design development chapters have sections outlining documents, steps, and criteria that should be completed before the next phase in the process is begun.

  • The final design chapter has a peer review section that includes a checklist to provide designers and builders with independent design reviews and technical guidance to promote technically sound, budget-conscious designs.

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