Caulk normally used would not work because it s too large a gap.
Large gap between tile and wall.
This can be found at well stocked hardware stores but not always at large home improvement centers.
Also check concrete supply centers as backer rod is used to fill gaps in poured concrete walls.
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Fill gaps larger than 1 8 inch.
This small gap is created by the compressed thickness of the organic mastic or the cement thinset used to attach the tile to the backer board.
Darciegage2 has the best solution.
A pencil tile trim would cover the gap.
Large gap between tub and tile 1 2 how to caulk.
The gap is easily filled with the tile wall grout.
Caulking is the best choice for this application.
If you have tile on the wall adjoining the tub select a caulk that matches the color of the grout.
Get photos of great finish details include photos with bid and contract.
Fill larger gaps with foam backer rod sometimes called spline.
If your gap is smaller than 1 8 inch in width use regular caulk.
Ceramic tile wall gap back of tile should rest on finished wall.
Grout is no used between countertop and wall tile.
Big box stores have them.
Push the appropriate size backer rod into the gap below flush with the surface.
Backer rod and caulking masking tape off the wall and tub to pull a straight line.
The tile council of north america recommends at least a quarter inch gap between the tile floor and the walls.