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Pool Deck Cracks & Why They Happen

With the weather warming up, summer is right around the corner. Don’t let cracks in your pool deck stop you from enjoying your pool all summer long! Learn what causes pool deck cracks so you can help avoid any further damages to your personal oasis!

Small cracks in pool decks aren’t usually a cause for concern because pool decks are subject to cracking over time. It’s just the nature of the beast. When you mix soil, concrete, and lots of water, cracks are bound to happen at some point. However, it is important to understand why pool deck cracks can happen so that you can help avoid foundational problems, and expensive repairs in the future.

Adverse Weather Conditions

Whenever there is heavy rain or precipitation, there is a chance for soil to expand, which is typically the main cause for concrete cracks. And although we don’t see a ton of snow in Arkansas, any water that sits and freezes around the pool area can cause issues as well. When water freezes, it expands. This expansion is what can cause the concrete to crack, because it puts a lot of pressure on the concrete, just as swelling soil does from beneath. On the other hand, if the environment is dry, like in the summer months, the soil surrounding concrete will contract. When the soil shrinks, it can leave a gap between the base of the concrete and the top of the soil, causing the concrete to sink to ground-level. 

Failure to Seal Small Pool Deck Cracks

Concrete is a porous surface so water will eventually make its way through the concrete to the soil below if it does not evaporate quickly. Failing to seal small cracks in your pool deck will only make it easier for water to seep into the soil beneath your pool deck. So when you notice a few small cracks, be sure to seal them right away in attempt to avoid any further cracking.

Slope Creep and Ground Water Levels

Slope creep is erosion that happens slowly over time. Erosion can cause heavy in-ground pools to move and shift, which is another reason why cracks in your pool deck may appear. An easy way to see if slope creep is the culprit for cracks in your pool deck is to check how level the water is around your pool. 

In areas with high ground water pools can sometimes float upward. The upward movement is due to hydrostatic pressure and usually causes part of the concrete deck to crack because the pool has moved.

While we hope that you’ll be able to enjoy your personal oasis all summer long without any issues, we want you to know we’re here to help if you should need it! Contact us if your pool deck needs a little TLC before you open it this season!