Reasons Why Pool Tiles Crack and Fall Off

April 30, 2021

If you have a swimming pool on your home property, you have most likely had to deal with pool tiling repairs. Cracking, loosening and detaching of the tiles on pool walls, floors and borders are common and annoying problems. However, these are important occurrences to correct as soon as possible to ensure the safety and healthy condition of your pool and its water.

Main Reasons Why Pool Tiles Crack, Loosen and Become Detached

Primary reasons for your pool tiles cracking, loosening and falling off pool surfaces include the following:

1. Pool Water pH Levels.
Your swimming pool water's pH level is the measurement of its balance of acid and alkalinity. The total alkalinity count is the amount of alkaline (base) substances that are present in the water. It is also a calculation of the water's capacity to prevent changes in the pH level.

This capacity is referred to as the pH level buffering ability, or the total combined content of hydroxide, carbonate and bicarbonate along with carbon dioxide. If the alkalinity measure is low, this may result in concrete deterioration. This damage can cause tiles to dislodge from the pool sides and floor.

2. Correct and Secure Tile Installation. Poor quality or careless installation of pool tiling can cause tiles to crack or fall from pool surfaces. Using regular grout like the type of grouting that you use for installing home interior wall or floor tiles will not work. These pool tiles will most likely detach and fall from your pool's surfaces soon after you install them using grout.

Specially formulated pool tiling adhesive and sealant products are necessary for correct and secure tiling of your pool surfaces. These products are produced specifically for use on underwater walls and floors. These specialised adhesives and sealants secure tiles to pool surfaces firmly. They can produce a bond that is two or three times stronger than the bond that regular grouting can produce.

3. Harsh Weather Conditions. Extremes in temperature can cause changes in your pool’s walls and flooring. While freezing days can contract the pool surfaces, steaming hot weather can cause these surfaces to expand. During periods of extremely cold temperatures, ice can accumulate beneath your pool. To eliminate the likelihood of this occurrence, ensure that your pool has an expansion joint to compensate for this icing problem.

4. Pool Damage. Pool surface damage and tile detachment may occur due to normal wear and tear over time. If heavy equipment or objects are dropped into your pool or against its walls, the tiles may be sightly or seriously damaged or dislodged.

5. Deck Problems.
If the deck adjoining or surrounding your pool has been damaged by harsh weather or heavy usage, repair the damage. Otherwise, these problems may also damage or loosen your pool tiles. Ensure that there is adequate space between the pool edges and the deck. This will help prevent any additional tile damage or detachment if your pool surfaces expand or contract due to extreme seasonal temperatures.

By consulting our pool design, construction and tiling specialists at Delorenzo Pools, you can obtain excellent advice concerning your pool tiling. Our experts have extensive knowledge about all problems with cracking or falling pool tiles. As experienced professionals, they serve clients throughout Melbourne and surrounding areas. Our expert team will ensure that your pool tiling problems are resolved promptly, effectively and efficiently.


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