Water under tile in shower. If you experience dank mildew smells you cant seem to get rid of there is a chance you might have water damage developing behind your bathroom tiles. When a tile shower is installed there is a vinyl pan under the tile and the strainer drain bolts together sealing the vinyl pan at the drain connection. If your tiles are moving and theres no indication of water or flooding on the floors surface its definitely a warning sign of potential water damage below. The way to determine if water is under the tile is to give the water a chance to evaporate from the tile. Since the shower is constantly wet this can become a huge issue very quickly.
The way to determine if water is under the tile is to give the water a chance to evaporate from the tile. Water ALWAYS gets under the tile in a shower. 2-3 rolls of waterproofing membrane. As long as your shower walls are waterproof before you install tile this will not be a problem.
When a tile shower is installed there is a vinyl pan under the tile and the strainer drain bolts together sealing the vinyl pan at the drain connection. Mastic should not be used on shower floors in general that application is. The strainer bottom is about 14 thick and many times the installer places the strainer base on the floor instead of counter- sinking it flush with the floor causing the vinyl pan to hold 14 of water under the tile. Since your waterproofing membrane the plastic is directly behind your tile. As water collects behind shower tiles it spreads moisture through the backer board.
A tile saturated with water will be darker than the surrounding tiles andor a normal dry tile of the same color and tile batch. And remember all of this needs to be installed before laying down tile. Drops and spray of water from your shower can accumulate at this critical point. 2-3 rolls of waterproofing membrane. It just depends on how much water may be trapped beneath and. Loose tiles are a clear sign that there may be water underneath your bathroom flooring.