Recently, a local builder contacted us. They were working on a large addition and had some problems with the floors. The main floor of the original house had radiant heat and the architect and designer had specified a micro-topping installed as the finish floor. The house had since sold and the new owners liked the floors and wanted something similar for their addition. Somehow, they decided a gypcrete product was a close enough match??? The original color of the gypcrete was a fairly close match, but as it was finished and sealed, several black aggregate pieces began to stand out on the light colored floor. The client wasn’t happy with the black specs, but would have let it slide. A short time later, however, the floor began to develop cracks over the radiant heat coils and now something had to be done.