Rotten Wall Behind Bathroom Enclosure

Cover the wall cavities with a rigid air barrier or other supporting material to prevent cavity insulation from sagging and to create a continuous thermal barrier.

Rotten wall behind bathroom enclosure.

Then pull the tile and small squares of drywall out together. 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.

Any insulation that is wet or moldy will also need to be replaced. Position the cut drywall sheet on the wall. 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. Allow the wood and wall cavity to completely dry.

Install an air barrier behind showers and tubs installed on exterior walls. Leave a 1 8 inch gap between the bottom. Drop those pieces into a bucket of hot water to separate the gypsum backing from the tiles.