Hollow Tiles – How to fix?

Hollow tiles that make sonic triggers can be a problem, especially if they involve flooring. This sound may result from various reasons, such as incorrect tile arrangement or gluing errors. What to do if you notice this problem in your home right after renovation or after the floor is already in use? Is it always necessary to remove and re-lay tiles? In this article you will learn how to repair hollow tiles and what are the causes of their formation.

Hollow Tiles – What Does It Mean?

Hollow tiles are those that produce a muffled or absent sound when we step on them or place heavy objects on them. They are particularly problematic for floors because the pressure exerted on them can lead to cracks and damage. For this reason, it is important to take action, especially if the problem is with the floor. The most common cause of a dull sound when walking on tiles is improper placement of the adhesive. When a tiler applies the adhesive to the floor surface unevenly or in inappropriate places, there is a risk that the tiles will not stick properly, leading to a dull sound. It is important that the glue is evenly distributed, for example with a comb.

Other causes of the appearance of hollow plaques are:

  1. Incorrect glue quality: Using low-quality glue may lead to imperfect gluing of the tiles and a dull sound.
  2. Large unevenness of the substrate: If the substrate on which the tiles are laid is uneven, different thicknesses of the adhesive layer may lead to imperfect gluing of the tiles.

How to Fix Hollow Tiles? Start with Complaints

If you notice that your tiles are becoming dull shortly after the renovation is completed, you can contact the person or company that did the work. If the problem results from incorrect glue placement or other error during installation, you have the right to file a complaint. This can be an effective solution, especially if the problem occurred relatively soon after the work was completed. However, it is worth checking all the work done, because faulty tiles can be easily identified by gently tapping the floor with a wooden hammer or a meat mallet. If the tiles have not been glued properly, you may hear a hollow sound.

Repairing Hollow Plaques – Methods

If you cannot make a complaint and the problem appears after the floor has been used for some time, it is worth considering repairing it yourself. There are several methods for repairing hollow tiles:

  1. Removal of deaf tiles: Chipping off slightly deaf tiles, cleaning both the tiles and the substrate from adhesive residues, and then sticking them again, this time using appropriate techniques and even distribution of the adhesive. Use a notched trowel (comb) to evenly apply the adhesive to the tiles.
  2. Filling voids under tiles: You can also use one-component microcements available in construction stores. These microcements do not discolor the tiles and are relatively easy to use. They can be injected into the spaces under the tiles. It is important to follow the manufacturer’s recommendations and be careful to avoid damaging the tiles.

Repairing hollow tiles can be a challenge, but the right approach and accuracy will help restore the floor to its original quality and sound. It is important to understand the causes of the problem and choose the appropriate repair method to meet your needs.

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