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| Thursday, July 29, 2010 |
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| [Wednesday, September 06, 2006] |
| Recently my company was asked to clean the unpainted cinder block walls of a basement that was completely submerged from a nearby overflowing river. After careful inspection, I decided to clean the walls with detergent and bleach assuming that I would not only thoroughly clean,
but inhibit the growth of what looked very much like mold beginning to form after the water had resided. Is there anything more that I could have done to treat these walls? Because of the porous nature of cinderblock could the mold return?
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| Cleaning Procedures - Gary Fazenbaker |
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Answer:
It would have been better to make it two steps - one to clean and one to disinfect. You may recall that 200 PPM bleach is the approved and effective kill ratio for mold. There are mold culture dishes that test indoor mold vs. outdoor mold counts to confirm efficacy. It is even better when an industrial hygienist runs the before and after tests.
In this case, once the walls are clean and dry there is nothing to sustain mold growth. No organic food and limited moisture. You could have applied a mold-inhibiting paint or other treatment, but the blocks themselves are not a food source for molds.
Gary Clipperton
National Pro Clean Corp.
(719) 598-5112
www.nationalproclean.com
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| ICAN representative |
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