Jack wrote:
I am planning an attic mold cleanup-- Conventional wisdom is to use
bleach and water, but when I google it... I get a lot of hits saying
that it is a myth that Bleach kills mold.

The EPA brochure does little to clear it up.

Anyone with any real-world experience or other good info.


I don't know about the use in an attic, but bleach
is a standard disinfectant (meaning it kills
stuff) used in laboratories. Standard bleach is
5-6 percent Sodium hypochlorite. The killing
power varies with the strength and the time in
contact. Straight out of the bottle takes contact
of less than a minute, diluted with 1/5 with water
you need a contact of about 15 minutes to kill all
microorganisms. I'm not sure how long the stuff
would remain liquid if you spray it in the attic,
but it wouldn't be very long, so I would spray
undiluted stuff.