If the grout has cracked or become loose and you are seeing black coming through the grout chances.
Water trapped under ceramic tile.
Repeat this procedure for all ceramic tiles with underlying water.
Second any water under a floor is a problem.
Answer answer water coming up through your tile grout joints is an indication that you have a high water table on your property or that water is being directed towards your house and you don t have a vapor retarder under the concrete slab to prevent water from migrating through the concrete.
Grout and adhesive seal the tiles together and are the first substances affected by standing water.
The white residue is likely efflorescence which are salt minerals that are absorbed by the water as.
Although the tile itself will not grow mold trapped water below the tile will effect the subfloor.
Even if there is concrete board below the tile there is still a wood floor under there somewhere.
This is where flooring wood carpet tile is laid in residential construction.
Tile flooring consists of more than just tiles however.
Set all the ceramic tiles you removed to the side.
When these all too common mistakes occur standing water gets trapped in the shower pan below the tile level.
Use the rubber mallet to tap the head of the putty knife to pop the ceramic tile from its place.
Place a wide putty knife under the ceramic tile parallel to the floor.
Water or water vapor rising out of a concrete slab on grade can cause flooring to lose adhesion to warp and to peel.
Knowing if you do have water underneath tile is important.
This is the industry standard most preferred by construction pros when installing ceramic or porcelain tile backer board comes in four foot by eight foot and three foot by five.
The shower floor tile and grout will appear to dry in 24 hours but if your shower was improperly constructed the 1 5 inches or more of deck mud under the shower floor tile will never dry.
When dried the slab returns to its original size but the ceramic tiles do not shrink back to their original size.
Considered the most water resistant flooring material tile is the most popular choice of floor coverings among homeowners.
Water under a tile floor can be caused by a various number of things.
Unlike ceramic tile concrete will shrink back to its original size as it dries.
A concrete slab on grade is a flat area of concrete poured directly on the earth or water membrane.
This means in a water damaged tile situation involving ceramic tile installed over a concrete slab both the ceramic tile and the slab will expand.