What to fill in between tiles?

What to fill in between tiles?

Grout is a thin mortar used for filling spaces between tiles [source: Merriam Webster]. Grout does not strengthen or hold the tiles in any way. Rather, it prevents water from getting between the tiles and gives an aesthetically pleasing finished look to the tiled area.

How big of a gap can I fill with caulk?

Measure the size of the gap that needs to be filled. A single bead of caulk can fill gaps up to 1/4 inch. If the gap is slightly larger than this, fill it with a bead of caulk deeper into the gap, but not flush with the surface. Wait until the caulk is completely cured before coming back to put a surface bead on.

Why are there gaps between tiles?

Ceramic tiles are subject to a so-called thermal expansion, that is minimal reactions to changes of the temperature. … These small gaps prevent any possible cracking of the tiles or their detaching from the basis.

How big of a gap can you fill with grout?

Fill gaps up to 1/4 inch in width with caulk. If you have tile on the wall adjoining the tub, select a caulk that matches the color of the grout. If your gap is smaller than 1/8 inch in width, use regular caulk; fill gaps larger than 1/8 inch with a sanded caulk.