Cut out the drywall.
How to dry out wall behind tiles.
There s no point in fixing damage that will only recur so the first step is to determine the cause of.
Crumbly i would remove tiles until you get to were the wall is dry remove any damp plaster and patch back in with one coat plaster this dry s rapidly when completely dry then you can re tile.
Scrape away any loose or peeling paint or wallpaper.
What is the best way to dry behind tiled shower walls.
Once you have found the damage begin to remove the affected tiles.
Start by removing any molding switch plates outlet covers and other hardware attached to the area being tiled.
Let the wall dry thoroughly.
With tiles removed you.
How do i remove water under ceramic tiles after a leak.
Place a wide putty knife under the ceramic tile parallel to the floor.
Depending on the severity of the.
Cut away loose bits of peeling drywall.
This will help clear out moist air while actively drying the damp spots.
You then need to remove the damp air.
To do so place 1 or more fans in front of each damp spot and turn the fans to their highest setting.
Use room fans to dry out small damp spots.
If damp has ingressed into the wall it could have damaged the plaster by which i mean when it got wet it would have softened and then as it drys the plaster becomes unstable i e.
However remember you must not have portable electrical appliances in a bathroom.
Use the rubber mallet to tap the head of the putty knife to pop.
Tap a rubber mallet on the head of a small chisel to remove the grout in the tile joints.
If the moisture only affected a small area of the wall you may be able to dry it out using standard oscillating fans.
Scrape away stuck on tile adhesive from the drywall with a plastic putty knife.
Remove any remaining dust oil or grease with tsp tri sodium phosphate or an ammonia based cleanser.
You have to run a dehumidifier while moving the air with a fan.
To solve the problem that you didn t cause.