Perception Environmental, Inc.

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About Mold...

Updated 2.20.2012
Note: An improper microbial assessment can and will cost you thousands of dollars not only in mold remediation costs, but consider the costs of re-installation of building materials to pre-existing conditions.


Mold is inevitable and is part of our eco-system for billions of years and at this time not going away anywhere, however when mold growth is identified in building it can create a variety of concerns.  Health, building damage and remediation costs are just a few.

Mold requires water.  No water, no mold.  Mold is the result of a water problem (i.e. humidity, leaks, floods etc…) Fix the water problem and you have fixed the mold problem.  To avoid mold problems, avoid water problems.  Design and build in a manner that reduces water problems.  Mold also requires food.  The food it likes best is cellulose – the more processed the better.

Perception provides microbial management services using commercially reasonable efforts consistent with the level and skill ordinarily exercised by members of the profession currently practicing under the guidance document developed by the United States Environmental Protection Agency (USEPA  titled Mold Remediation in Schools and Commercial Buildings and the New York City Department of Health (NYCDH) guidance document titled Guidelines on the Assessment and Remediation of Fungi in Indoor Environments.

...and the KISS Principle.

Most authorities agree that fungi should not be allowed to amplify in occupied buildings to the point where visible growth can be observed. 

There are no United States Federal regulations for evaluating potential health effects of fungal contamination.  All molds have the potential to cause health effects, and the presence of fungal contamination and moisture-damaged building materials are generally not considered acceptable in indoor environments. 



Ø  American Society for Testing and Materials (ASTM) D2017 (Wood Standards)

Ø  ASHRAE 1995. 1995 ASHRAE Handbook - Heating, ventilating, and air-conditioning applications. SI Edition, Chapter 3. pp. 3.1-3.13 Atlanta: American Society of Heating, Refrigerating, and Air - Conditioning Engineers, Inc. Atlanta, GA. USA.

Ø  Building Component & Furnishing Moisture Levels, Source: William Yobe & Associates & U.S. Forest Products (USDA)





Educate yourself.  Take the following online course:




Interesting read from the American Industrial Hygiene Association (AIHA)

Click on to the following link: of Facts about Mold.pdf


 Call me at 815.341.0213



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