Do It Yourself Home Mold Testing Kits By Daryl Watters At Isnare.com Ezine Articles

What are they good for?

If you feel that you have a mold problem, you can save money on a mold inspection by buying a mold testing kit from your local South Florida building supply store. The kit consists of a standard, plastic Petri dish containing a mold growth media, most likely MEA (Malt Extract Agar.) Simply open the kit and let mold spores fall in it from the ambient air above it. Within a few days, mold colonies will start to grow. Typically, you will see black, white, gray, brown, and green colonies. Colonies with both green and white are also very common. Most colonies will be fuzzy, and the mold types in the mold testing kit will usually be mostly penicillium/aspergillus-type molds, cladosporium, mucor, and a few others. It's very cheap, easy, fast, and quite interesting to see what is floating around in your air.

However the conclusion drawn from the results of this mold testing procedure is very limited. Because the kits do not draw in a given amount of air for a given amount of time, there is no way of knowing for sure if the number of spores that settle in the plate and grow into mold are just the normal expected levels of spores found in every house. Most clean houses without a serious mold problem should be expected to contain very roughly 200 to 500 mold spores per cubic meter of air. Anything over 1,000 is typically considered suspect by many mold inspectors. These numbers are just estimates and do not reflect the real world perfectly, however, similar numbers have been supported by several scientific mold studies over the years.

Since there is no control sample using outdoor mold spore testing, you will not know if the mold spores floated in from outside as is expected, or if the mold indoors is different in number and type from outdoor levels and types, which would indicate that the mold most likely grown indoors.

Also, because the mold testing was not conducted by a person trained and experienced in mold testing, you will most likely have no idea of from where the mold came, if it is likely growing inside the walls, why the mold is a problem if in fact it is a problem, or how to properly remove the mold and correct the problem that resulted in mold growth.

If you feel that you have a serious mold problem in your home or place of employment, you may want to purchase a test kit from your local building supply store. However, you will benefit much more by obtaining the services of an experienced, trained, and properly certified mold inspector, certified indoor environmentalist or certified industrial hygienist who is familiar with proper mold testing methods and:

1) Building construction and building forensics Because your mold problem is not in a Petri dish or lab it is in a building and is the result of building failure, mold testing should be done by someone who has knowledge of buildings, vapor barriers, roofing, etc.

2) Psychometrics. Psychometrics pertains to humidity, temperature, dew point and air, and a deep understanding of the interrelation of such factors is important. This is very important during Florida mold testing.

3) Biological sciences. Your mold testing professional should understand at least some basic biological and ecological science principles pertaining to microbiology or mycology (the study of mold).

4) HVAV systems. Your mold testing expert must be familiar with HVAC systems because probably 50% of mold problems are related to HVAC system malfunctions, leaks, or contamination.

5) Sampling reports. Your mold inspector should be properly trained and experienced in investigating and sampling mold, and they should know how to interpret the lab results.

6) Inspection reports. Your mold testing professional should give you a comprehensive mold inspection report documenting visual findings, environmental monitoring results, interpretation of lab results, inspector's conclusions, recommendations on how to control the mold problem and more. A report from the lab alone will only result in you hiring another inspector to get the interpretation of the results. Look to A Accredited for a qualified inspector who has a college degree in education for teaching biology and general science, has health inspection experience, has extensive home and building inspection experience, has earned not one but three mold inspection certifications and also who is a certified indoor environmentalist certified by The Indoor Air Quality Association.

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