How to Grout Uneven Surfaces

When properly applied, grout protects wall and floor surfaces by bridging the gaps between tiles, preventing water seepage and giving surfaces a finished look. Successfully applying grout to uneven and/or porous tiles requires slightly different techniques than grouting smooth, even tiles. It also can be more time consuming; however, the appearance and durability of well-finished tile is worthwhile. Always start with clean tile that has been run over at least once with a shop vac and a damp cloth to pick up any dust or debris.

Grout release
Shop rag
Rubbing alcohol
Cotton swabs
Grout
Grout bag
Trowel
Damp sponge
Clean, dry cloth

Instructions

- 1
  Wipe grout release onto existing grout using a shop rag. Try to cover the tiles without getting the grout release into the joints between the tiles. If you get some grout release in the joints, remove it using a few drops of rubbing alcohol on a cotton swab. Allow the release to dry as directed by the manufacturer.
- 2
  Fill the grout bag with grout. Twist the bag to force grout out of the tip and into the joints between the tiles.
- 3
  Pack the grout into the joints using a trowel, then scrape off excess grout until it is even with the tile surfaces using the sides of the trowel.
- 4
  Allow the grout to set until it springs back when it is pushed with a finger. Wipe away any excess grout using a damp sponge.
- 5
  Buff the tiles clean using the clean cloth.

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