Allow the wood and wall cavity to completely dry.
Rotten wall behind bathroom enclosure.
If you find that the wood is rotted you will need to replace it.
Install insulation without misalignments compressions gaps or voids in all exterior wall cavities behind tubs and showers.
Drop those pieces into a bucket of hot water to separate the gypsum backing from the tiles.
Leave a 1 8 inch gap between the bottom.
Position the cut drywall sheet on the wall.
Install an air barrier behind showers and tubs installed on exterior walls.
Then pull the tile and small squares of drywall out together.
Fiberglass and acrylic tub and shower enclosures come with a flanged edge that attaches directly to the wall studs and the proper way to hide this flange is to install drywall over it.
To remove tiles that won t budge reach into the wall and use a utility knife to score the drywall from behind.
Make sure the bottom side edge of the drywall sheet extends down over the thin lip of the tub s mounting flange.
If any of the wood studs appear wet and moldy you can clean them with a water bleach solution.