Bob Harris is founder of the Decorative Concrete Institute and senior decorative concrete consultant for Structural Services Inc. The information in this article is based on "Bob Harris’ Guide to Concrete Overlays & Toppings." To purchase a copy of that book or other titles in The Bob Harris Decorative Concrete Collection, visit www.decorativeconcreteinstitute.com.
If you don't do a sufficient job of preparing the substrate, all of your painstaking artistry could be a waste of time and effort. I bet that 90% of overlay delaminations and failures are due to inadequate surface preparation.
Manufacturer specifications for decorative overlays will describe when to install their system based on such factors as exposure conditions, subfloor types, the age and moisture content of the slab, and the condition and profile of the existing substrate.
The inside scoop on what's going on in the concrete indsutry.
ASCC presented its fifth annual Decorative Concrete Council Awards at a ceremony Feb. 6 at World of Concrete in Las Vegas.
There are a lot of conferences to tell you about this month; make sure to attend some.