Before you hang that nice big bathroom mirror, be sure you keep these things in mind. You'll need to support the bottom edge by screwing in a length of j-channel. To protect the mirror's silver backing, cover the screw heads with duct tape and be sure to use specially-designed mirror mastic, since other adhesives can eat away the back and leave spots.

Rob Shedrofsky from Davinci Stone explains the tiling process to Bob as the Porcelanosa wall tile is installed in the bathroom. A glazed clay tile is being used on the wall, while the floor will be done in a porcelain tile that is super strong and only �� inch thick. The wall tile is a Subway design, replicating the look of the New York Subway on a larger format. Shedrofsky explains how the datum line is used to create a tile layout that is centered from top to bottom and side to side for a pleasing look. The tiles are applied to the wall with an petroleum-based mastic and a ��-inch notch trowel. The mastic is less expensive than thinset, sets up quicky, and prevents sagging or dipping tiles. The tiles have an ��-inch joint that is held by spacers for 24 hours while the job cures. After 24 hours, the spacers are removed and an unsanded white grout is applied to blend the seams into the tile and give a sleek, urban appearance.

Eddie Lambert of Coconut Grove Glass installs the mirror panels that will serve as the back and side walls for the built-in bar in the Miami condo. He first applies Miro Mastic, an adhesive created specifically for mirrors, that will not bleed through or damage the silvering on the mirror. With the larger pieces across the back, Lamber applies the mastic directly to the wall. For the small side pieces that will brace the glass shelf that sits on top, Lambert applies the mastic to the back of the mirror. Using suction cup handles, Lambert puts the pieces in place, then applies pressure while they set. The glass shelves are sandwiched between two pieces of mirror affixed to the wall, so there are no fasteners to break the illusion of enlarged space created by the mirrors. Lambert is able to apply the mirror sections directly on top of the backsplash because Formica is a relatively soft material. If it were tile, a shim would be used to act as a cushion.