Old Kool Deck surfaces seam to have worn out their welcome in the Kansas City metro. It seems more and more we are getting request to repair kool deck (cool deck) concrete surfaces around pools. There are a couple of reasons traditional kool deck systems have failure issues.
- Kool Deck was designed to be put on when the concrete was green. This has caused some bonding issues
- Traditional Kool Deck has somewhat of a coral texture and there is no way to seal it from the elements. This allows water to go inside the pours and freeze/expand in the winter….blowing it up.
Here is an example of a pool with Kool Deck that we fixed with a Miracote overlay
The old overlay is ground off as best as possible, making sure to detect areas that have a weak bond.
As much of the old overlay needs to be removed as possible. One way to detect if the old overlay is not bonded is to knock on it and listen for hollow spots. This particular pool took over 5 days to grind with a commercial machine. After grinding the pool needs to be washed extensively with a pressure washer and primed for a new overlay.
The new overlay has been installed. We use the Miracote system which is a highly flexible overlay system. The texture is knockdown.