Concrete contractor Shawn Doyle is on hand to review the techniques used in pouring the concrete floor of the garage. A laser levels is used to ensure an accurate level and several power and hand tools are used to smooth the floor. Lastly, a control joint is installed to allow for expansion and contraction of the floor.

Bob talks with homeowner Howard Brickman about drying out of the new addition. Concrete can pose problems for the wood-floor installation business. Brickman's consulting business created a device that measures the relative humidity of the interior of the concrete and predicts what will happen after the concrete is covered with a floor covering. The whole exterior structure of the addition, except for the roof, is made of concrete. It's critical that the concrete that makes up the floor is dried before the wood floor is installed. This is especially true in Southern climates where there is a high amount of humidity.

Bob talks with Howard Brickman of Brickman Consulting about waterproofing the concrete basement floor. Brickman is putting water down on the floor to make the floor more absorbent for the sealant he will be applying later. To seal the concrete, Brickman will use Bone Dry, a sodium silicate with enzymes, to penetrate and seal up any spaces in the concrete to prevent water intrusion.