Caulking is the best choice for this application.
Floor tile wall gap.
The gap between wall and tile is between 4 and 30 mm.
The large format 18 inch tiles should have inch space in between.
When laying wall or floor tiles it s important to leave the right amount of space around each tile.
An expansion gap is essential when it comes to laminate flooring installation.
The reason for such a variance itn he width of the expansion gap is the roughness of the bare stone walls.
Imagine a very rough drystone dyke and you re still not.
However it will eventually fail in one of two ways.
I left the gap deliberately to allow for expansion if i didn t would i not have run the risk of tiles cracking.
The recommended expansion gap is a minimum of inch.
I only do this where there will not be a base trim to cover the edge of the tile.
As the tiles increase in size a larger gap becomes acceptable.
If you re fixing a gap between a tile floor and wall such as in a shower or a bathroom go with a silicone caulk so you can create an airtight waterproof seal.
The tile council of north america recommends at least a quarter inch gap between the tile floor and the walls.
Look for silicone caulk at home improvement stores hardware stores and online.
What i do is try to keep the tile as close to the stone as possible under a 1 4 inch.
Never fill this gap with grout because tile grout is not flexible.
Ceramic tile wall gap back of tile should rest on finished wall.
The i lay down a grout line above the tile at a 45 degree angle between the tile and the wall.
Any gap should never be greater than 1 8 inch.
The water being blocked by the sealant will find another gap in your foundation to enter the home.
Kind of like a mini 1 4 round.
Get photos of great finish details include photos with bid and contract.
In the short term a sealant applied along this gap between your basement floor and wall may prevent leakage.
Instead fill it with an elastic material capable of sustaining the movement of the floor and the movement of the wall.
A drain tile system is the most commonly recommended solution for leaky cove.