Does This Look Like Mold?

[Bergenite]

Originally Posted by Ghengis

the gypsum will not provide food for the mold to grow, it's the adhesive used to apply the paper backing that supports the mold growth.

What about the paper itself as a source for the mold growth?

[MrWillys]

Originally Posted by Ghengis

the gypsum will not provide food for the mold to grow, it's the adhesive used to apply the paper backing that supports the mold growth.

After lifetime in construction I must disagree. I've cut out mold where mold is all the way through the core of the drywall. I've seen it in plaster also. If moisture is present I think that stuff will grow on most anything.