Concrete work started as a hobby for McBroom and became a passion when she started her own decorative concrete business. Her first project was her own home, where she ripped out all the carpet and tile to install stained concrete floors. Now, after three years of contracting decorative concrete, she's expanded her business to include slabs and foundations. In 2007 she plans to start a company to build insulating concrete form houses, offering owners a “one-stop shop” for all their concrete needs. For her demo, McBroom applied custom stencils (cut in circular patterns after a Kandinsky painting) over a light-colored slab and applied a gray skim coat of overlay cement. She added layers of solvent-based dyes to provide subtle colors and water-based stains applied with an HVLP sprayer to show dynamic colors. She placed torn paper as a resist in some areas to create ragged edges. An application of chemical stain at the end provided additional accents.