That's definitely a good idea. If there is a sink and tub in there,I would even use a concrete or fibre board to back them also.
cement board
Yes, it's essentially the same thing.
There are drywall products on the market that have a chemically treated paper to reduce and prevent the growth of mold. Also, there is moisture resistant type of drywall available.
No. In fact the drywall will be ruined and need to be replaced. It will not be structurally sound and will attract mold. Certain types of drywall are more resistant to water and are used in areas that might get wet such as a kitchen or bathroom. But even then, it would need to be replaced in the scenario presented in the question.
You can remove mold on limestone basement walls by using mold remover. Bathroom cleaners and bleach also work well for this use.
If it is mould all the bad has to go
Yes, it's mould 'resistant' -that doesn't mean it won't get mould, just that it'll take more extreme conditions .
You are supposed to fur it out first. - That means a thin wood frame, usually 1x4 on the concrete FIRST. - It is not customary to apply drywall directly to a concrete basement wall.
There are a few things. If you can get 4x8 Hardibacker, that would be best. 3x5 Hardibacker would be second-best, just because of the extra seams you'll have to put in it. Mold-resistant drywall would work if that's all you can get.
firse, find any moister, if u have drywall mold is on the backside usually starting from the bottom.if u have a cinderblock foundation and drywall.90% will have mold find any soft spots and make a hole,look at backside, well...now u know
You would use it anywhere the moisture level is high, such as bathrooms, utility rooms, water softener rooms, etc. Greenboard is not water proof, just more resistant to water damage and mold.
Call a mold remediation company immediately. This is not a good situation.