Home Improvement--General/Cracking Ceramic tiles


The wax ring on the toilet leaked and rotted the wood under the toilet. I had a new floor put into my bathroom last year. Last month I noticed one of the new ceramic tiles had a hairline crack in it. Today I noticed two more tiles with the same hairline cracks in them. Did the contractor install cheap ceramic tile? Did he install the tile incorrectly? What is causing my new tiles to crack like this?

What most likely is happening is that either whoever did the tile work did not secure the under layment enough before the tile was put on. What I mean is that is sounds like the floor underneath has a slight give to it and when it moves slightly up & down, it will cause the tile to crack. It only has to be a slight movement and the weight of someone walking on that area will make the tile crack. It is very important to use enough screws & glue to make the sub floor totally solid when you walk on it. I doubt this will happen to all your tiles. Usually it happens in just a spot or two. The fix would be take out the old tile, get 2 to 3 inch screws and put plenty of screw in that bare area where you took up the old tile. I am sure the contractor left you extra tile. You can use thin set to secure the new tiles back to the floor or I have seen guys use sub floor glue to do a few tiles.

Home Improvement--General

All Answers

Answers by Expert:

Ask Experts


russell spataro


Any constrution or remodeling questions


15 years of custom home building. My knowledge on building homes correctly is written below. If I had more than 2000 characters I would gone on.

Lets start with foundation footing. The standard foundation footing is 20 inches wide. Foundation walls are 10 inches wide and must be dug down below the freeze line or 48 inches in Illinois. Framing a house. 2"x4" or 2"x6" walls. They are put 16" on center. Floors should be 3/4" tongue & groove plywood. 1/2 plywood sheeting should be placed on the exterior walls. Two 2"x12" nailed together should be used as headers above all windows and exterior doors. They should also be used on any doorways, halls or open spaces on all bearing walls. Walls get R-13 insulation. Ceiling insulation should be R-36 in Illinois or 10 inches of blown in insulation. Concrete for the sidewalks should be 4" thick. If it is a driveway or garage floor, then 5" thick. Foundation walls must be sealed with either tar or spray on sealer. Concrete for basement floors are 4" thick, with drain tile underneath crawl spaces must be covered with 2" of concrete. Stair risers should be no more than 7.5". Stair treads should be 10" wide. Deck spindles should be spaced no more than 4" s.

©2017 About.com. All rights reserved.