While most homeowners only think about caulk around their showers where the tile meets a tub, tile caulk actually needs to be installed in many areas around the home. Any time that tile meets a 90 degree angle, such as a floor meeting a wall, caulk is needed to provide an expansion joint. This joint helps the floor and walls flex, which in turn can help stop damage to the tiles, walls, plaster and grout.
Things You'll Need
- Latex caulk matching the grout
- Caulk gun
Select a latex caulk that matches the tile grout both in color and in texture. For example, select a sanded caulk to match a sanded grout and an unsanded caulk to match an unsanded grout. The space left where the tile meets the walls should be the same size as a grout joint; the caulk will fill this space most easily if it is sized for it as well.
Cut the tip off the tube of caulk with a pair of scissors. Take care not to cut off more than the width of the caulk joint; caulk can come out quickly and it's better to have not enough than too much.
Insert the tip of the caulk tube into a caulk gun and push the plunger of the gun into the back of the tube. Squeeze the trigger slowly until the caulk begins to come up from the tube.
Squeeze the caulk, beginning in a corner, into the joint between the tiles and walls. Move very slowly; you can always go back and add more. Continue along the entire wall.
Wet down your index finger and smooth the caulk into place. Press down on both the edge of the tile and the edge of the wall to create a smooth, even caulk joint across the entire wall. Allow the caulk to dry overnight.
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