Leak In The Grout In The Tiled Shower Walls
There has to be an underlying problem with the shower pan s waterproof membrane.
Leak in the grout in the tiled shower walls. Those areas are exposed to the most water so damage tends to spread quickly. To waterproof a shower pan and shower walls you have to have a waterproof membrane that meets ansi a118 10 to be properly installed. Starting low on the wall splash or spray water on an isolated area and keep checking for leaks as you work your way up a couple of feet at a time. Shower tiles in particular are almost constantly bombarded by running water so sealing the grout is a necessity.
Answer answer if water from your shower is leaking into a crawl space the problem is not the cementitious grout joints. If you spot these symptoms you have found the water damage. Sealing grout in shower tiles is the best way to keep grout clean and waterproof. The longer the leak has gone unnoticed the larger the repair will be.
It likely was not installed correctly. If the shower drains and there is no leak then you will need to examine whether the leak is coming from missing grout between tiles on the shower walls. The tiled wall shown on these pages is only a few years old but water had seeped in. Signs of moisture include.
Cracks in the grout between tiles in your tub or shower area can allow moisture to seep through and stain the ceiling below. Mold discolored grout loose tile and peeling caulk. These problems allow shower water to penetrate the wall and cause damage and they are generally found low on the shower wall down where the tile meets the shower base. To do this focus on one wall at a time.
To stop the leak and prevent further damage to the underlying plaster. They can often cause damp and mould within surfaces behind tiles and can even threaten the structural integrity of walls so it s important to tackle the issue at the first sign of a leak.