Had to choose between a full demo or a skim coat on a bad concrete slab in a Phoenix kitchen

The slab had a 1/4 inch dip across 8 feet. I went with the skim coat using Ardex K 15 to save the client a day and about $800 in demo costs. It feathered out fine, but I'm second-guessing if a full tear-out would've been better for long-term stability. Anyone have a rule of thumb for when a dip is too much for a leveler?

2 comments

2 Comments

thea_chen28d ago

Man, that second-guessing feeling is the worst, isn't it? I've been there staring at a floor I just finished. A quarter inch over eight feet sounds like it was right on the line for a leveler. In my experience, if the dip gets deeper than that or if the slab is really crumbly, that's when I start thinking demo. But for a solid slab, feathering it out with a good product like you did usually holds up just fine.

grayl6527d ago

Check the warranty on that leveler.