Agreed, if paint is intact and it simply wipes off the surface. Keep an eye
on it, and see if it returns in a few days. If surface is not intact, and/or
it comes right back, it may be in the wall. Is this a bathroom, kitchen, or
the corner of a cold bedroom, or near a window? Condensation, or an actual
leak feeding it? If the drywall got wet below the surface, only reliable
kill may be to fix the leak, and remove and replace the infected drywall,
sterilizing in the wall as part of the process. 99.9% of the time it is
harmless, just gross. Bathrooms with ineffective or unused exhaust fans are
prone to mold- good argument for 'scrubbable' paint in there.
Spray with bleach solution, wipe down with soap & water, & paint over
Damp mold is easy to kill. Dry mold gets airborne real easy when you
touch it. Painting over it seals in into the drywall and keeps it from
spreading or getting airborne.
And contrary to other's opinions, there are literally 100's of
different types black mold and only 3 are dangerous. These 3,
Stachybottrus, Aspergillis, & Penicillium can have serious health
effects. The rest are relatively harmless.
use bleach. but before you do, you need to find out what's causing it
which will probably mean removing the drywall in that area anyway.
Otherwise, you're just covering up a problem that is bound to cause more
headache down the road.
and why? Just a damp area with poor air circulation? Roof leak? If
roof leak, take care of cause. A badly aimed AC vent can cause
condensation on a wall and just requires it be redirected.
Mold spores are everywhere, and just need some moisture and nutrients to
grow. Don't panic.
There is a hole cut in the drywall to let the handle of a valve to cut
the water off to an outside tap. The packing apparently leaking a drop
or two every time I open and close the valve which is twice a year.
Thanks, guys...the net is a wonderful source...
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