I don't care what someones brother in laws, father taught them about cleaning mold.
There are comprehensive mold remediation techniniques, approved by the center for disease control.
If you want the real answers I will be happy to send them to you.
I have studied Micro biology lately, and am licensed to remove mold.
This is a hazardous material situation.
You can do it the way someone recommends, or you can research it and do it correctly and SAFELY.
When you disturb the mold, you will have about 100 times as much mold in the air as you have right now.
Your choice.
For instance mold does not require "no air movement", or "darkness" to thrive.
All it needs is moisture and a biodegradeable food source.
Yes there are better solutions than bleach. A simple Google search will give you the names of many.
NO mold remediation Co. is using bleach, because their lives and jobs depend on doing it right, and safely.