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Mold Blog Part 3

MOLD Series PART 3: The Final Chapter

This is the last of our MOLD series and we hope you’ve learned a thing or two!

Testing or Sampling for Mold

Is sampling for mold needed?  In most cases if visible mold growth is present, sampling is unnecessary.  Since no EPA or other federal limits have been set for mold or mold spores, sampling cannot be used to check a building’s compliance with federal mold standards.  Surface sampling may be useful to determine if an area has been adequately cleaned or remediated.  Sampling for mold should be conducted by professionals who have specific experience in designing  mold sampling protocols, sampling methods, and interpreting results.  Sample analysis should follow analytical methods recommended by the American Industrial Hygiene Association (AIHA), the American Conference of Governmental Industrial Hygienists (ACGIH), or other professional organizations.

Suspicion of Hidden Mold 

You may suspect hidden mold if a building smells moldy but you cannot see the source, or if you know there has been water damage and residents are reporting health problems. Mold may be hidden in places such as the backside of dry wall, wallpaper or paneling, the top-side of ceiling tiles, or the underside of carpets and pads, etc. Other possible locations of hidden mold include areas inside walls around pipes (with leaking or condensing pipes), the surface of walls behind furniture (where condensation forms), inside ductwork, and in roof materials above ceiling tiles (due to roof leaks or insufficient insulation).

Investigating Hidden Mold Problems 

Investigating hidden mold problems may be difficult and will require caution when the investigation involves disturbing potential sites of mold growth. For example, removal of wallpaper can lead to a massive release of spores if there is mold growing on the underside of the paper. If you believe that you may have a hidden mold problem, consider hiring an experienced professional.

Cleanup and Biocides 
 
Biocides are substances that can destroy living organisms. The use of a chemical or biocide that kills organisms such as mold (chlorine bleach, for example) is not recommended as a routine practice during mold cleanup. There may be instances, however, when professional judgment may indicate its use (for example, when immune-compromised individuals are present). In most cases, it is not possible or desirable to sterilize an area; a background level of mold spores will remain, and these spores will not grow if the moisture problem has been resolved. If you choose to use disinfectants or biocides, always ventilate the area and exhaust the air to the outdoors. Never mix chlorine bleach with other cleaning solutions or detergents that contain ammonia because toxic fumes could be produced.

*Please note: Dead mold may still cause allergic reactions in some people, so it is not enough to simply kill the mold; it must also be removed.*
 
Ten Things You Should Know About Mold

1.  Potential health effects and symptoms associated with mold exposure include allergic reactions, asthma, and other respiratory complaints.

2.  There is no practical way to eliminate all mold and mold spores in the indoor environment; the way to control indoor mold growth is to control moisture.

3.  If mold is a problem in your home, you must clean up the mold and eliminate sources of moisture.

4.  Fix the source of the water problem or leak to prevent mold growth.

5.  Reduce indoor humidity (to 30% to 60%) to decrease mold growth by:
a. venting bathrooms, dryers, and other moisture-generating sources to the outside;
b. using air conditioners and de-humidifiers;
c. increasing ventilation; and
d. using exhaust fans whenever cooking, dishwashing, and cleaning.
6.  Clean and dry any damp or wet building materials and furnishings within 24-48 hours to prevent mold growth.

7.  Clean mold off hard surfaces with water and detergent, and dry completely. Absorbent materials that are moldy (such as carpeting and ceiling tiles) may need to be replaced.

8.  Prevent condensation.  Reduce the potential for condensation on cold surfaces (i.e., windows, piping, exterior walls, roof and floors) by adding insulation.

9.  In areas where there is a perpetual moisture problem, do not install carpeting.

10.  Molds can be found almost anywhere; they can grow on virtually any substance, provided moisture is present. There are molds that can grow on wood, paper, carpet, and foods.
Congrats! You’ve successfully completed reading all three parts to our MOLD! series.  We hope this information helped you!  Have a great weekend!

*MOLD blog courtesy of www.Internachi.com*

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