Garden Recording/Mixing Room in Surrey, UK - Build Diary
Posted: Fri, 2023-Apr-28, 14:13
That's rather disappointing! It's hard to say if it could have due to the stacked mineral wool, but the "damp" pattern does seem to roughly match the locations where the packages were, from what I can see, so I guess it is a possibility. Was there any moisture in or on the packages when you removed them?
Is there any chance that this could be coming up through the slab from below?
I'd wait to see if it dries out fully, then do the "plastic square" test: cut out a large square of thick clear plastic, and tape it to a section of the slab that you suspect, using duct tape (it won't stick very well probably, but well enough). Leave it a couple of days and see if any condensation forms under the plastic. If it does, then that suggests water still in the slab from somewhere. If you don't get any sign of condensation, then that would indicate that the slab is dry, and you are probably OK.
- Stuart -
Is there any chance that this could be coming up through the slab from below?
I'd wait to see if it dries out fully, then do the "plastic square" test: cut out a large square of thick clear plastic, and tape it to a section of the slab that you suspect, using duct tape (it won't stick very well probably, but well enough). Leave it a couple of days and see if any condensation forms under the plastic. If it does, then that suggests water still in the slab from somewhere. If you don't get any sign of condensation, then that would indicate that the slab is dry, and you are probably OK.
- Stuart -