Pool Coping with Concrete Units – How to

We get asked a variety of Q’s on applications and best practices for stone installations on a regular basis.

Dean Cavicchi of Ardex Co. authored this and has a lot of field experience with these types of applications.

For Pool Copings, this is what we see for typical applications :

If the substrate is concrete you could go directly over the cleaned, porous concrete with X-32 or X-90, then set your stone. You can use AM-100 first if you need to prep the surface to make it flat.

If the substrate is PVC or metal you must rough up the surface with a heavy grit sandpaper, cleaning it thoroughly afterwards. Then you must key in some Ardex 8+9 with a 3/16” V- notch trowel and trowel and imbed the SK-mesh into it centering on the seam of PVC-metal-concrete.  This may require more than one piece of mesh.

Let dry then apply second coat of 8+9.

Then install the coping with X-32 or X-90. The X-90 can be used but the substrate must be flat. If not set it with X-32 to account for the undulation.

If the PVC or metal are wide enough by themselves to support the coping you could skip above and use WA Epoxy Grout/Adhesive. This does not have the sag resistance of X-32 so shimming (plastic shims or wedges) may be required.

Use FH Grout to grout the coping and you must have soft joints every 8-12 feet or however the layout works out – to the closest grout joints. Use Ardex SX silicone caulking for this.

Garden Pathway Ideas

To get from the house to the gardens,  don’t be trodding over that nice grass you so meticulously take care of every week.  A garden pathway is the perfect solution for keeping that grass nice and add a beautiful feature to you back yard.

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