Tag Archives: concrete in kansas city

Concrete Overlay Surface Preperation

concrete overlay over old paint...a no, no!

concrete overlay over old paint...a no, no!

I had a customer call me yesterday concerning a concrete overlay another contractor had done for her less than a year ago.  Upon arrival I discovered a few things:

  • The walkway and front steps should have been torn out and replaced with new concrete because the concrete was severly cracked and had shifted up and down
  • The overlay contractor did not honor the control joints and cut them back out so the overlay was coming up in these areas
  • no surface prep was done….the contractor had gone over old paint.

Now you may be wondering… how do you fix this?  The answer is not an easy one to swallow for the customer.  Do it right the first time.  If the concrete had been ground using a diamond grinder it wouldn’t have started chipping up so soon, but the real answer for this particular job is to get new concrete.   Concrete Overlays are only as good as what you put them on.  I would guess this surface was 50+ years old, and in the Kansas City area this surface had already exceeded it’s life expectancy by more than 20 years.

Don’t be fearful of concrete overlays in the Kansas City area.  Just make sure the contractor does the proper surface prep or you will be wasting your money.