However it will eventually fail in one of two ways.
Gap between wall and garage tile.
When you install ceramic tile on the floor you must take care to create an expansion joint between the walls and the tiled floor.
The best exterior caulk for blocking large pest holes.
Push the appropriate size backer rod into the gap below flush with the surface.
In the short term a sealant applied along this gap between your basement floor and wall may prevent leakage.
You see in the early stages of building a home the basement is constructed first excavated to the desired depth.
This gap is called a cove joint and the reason there is a gap between the wall and the floor is simply because of the way that the foundation of the home got poured.
Get photos of great finish details include photos with bid and contract.
I have a attached garage with a cement floor.
If your gap is smaller than 1 8 inch in width use regular caulk.
If you have tile on the wall adjoining the tub select a caulk that matches the color of the grout.
Fill larger gaps with foam backer rod sometimes called spline.
Also check concrete supply centers as backer rod is used to fill gaps in poured concrete walls.
The tile council of north america recommends at least a quarter inch gap between the tile floor and the walls.
A polyurethane spray foam insulation that expands to fill larger gaps and holes.
Use a pest resistant foam sealant for sealing exterior gaps and holes since mice can eat through some types of sealants.
Never fill this gap with grout because tile grout is not flexible.
Your tile person will take the largest gap and run a tape line using that as the thickness or the caulk.
This can be found at well stocked hardware stores but not always at large home improvement centers.
I thought of filling it with concrete or a sealer but then thought that maybe it was there for a reason.
Fill gaps larger than 1 8 inch.
Caulking is the best choice for this application.
The water being blocked by the sealant will find another gap in your foundation to enter the home.
I was about to paint the floor when i noticed one the side away from the house there was a perfectly straight line gap.
Any gap should never be greater than 1 8 inch.
This will give you say a perfect 3 8 caulk line with an irregular wall to counter gap.
The line will continue maintaining caulk gap regardless of the gap of the wall to counter.