Slide Show - Green Home Uses Concrete Throughout

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The exterior of the home, designed by Robert Rokop, AIA, mixes the modern with the traditional. The front balconies are cantilevered concrete supported by a poured second-level concrete floor. The roof is finished in concrete tiles. The exterior walls (both levels) are masonry block filled with concrete and have a smooth stucco finish.

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The staircase is a study in modernism, with floating precast concrete treads and glass and stainless steel railings. The 4-inch-thick treads have blockouts through their centers to accommodate steel framework that is bolted into the exterior concrete wall. The landing consists of four precast concrete treads that lock together on all edges to provide a seamless appearance.

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In the first-floor great room, a 6-foot-long firebox is sandwiched between an asymmetrical mantle and hearth, each made of one-piece polished precast concrete pieces 20 feet long, 3 inches thick, and weighing nearly 1,500 pounds. The entire fireplace assembly cantilevers off the wall nearly 7 feet, supported by steel rods welded to angle iron bolted through the wall.

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Concrete was used extensively throughout the kitchen, including all of the countertops, the backsplash wall, and the island. The 2-inch-thick precast concrete countertops are integrally colored with an iron-oxide pigment in a medium gray, and the surfaces are polished and sealed with impregnating sealers. The island weighs 1,250 pounds and was designed and reinforced to support a raised glass bar that cantilevers 20 inches.

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The precast concrete backsplash behind the stove is nearly 10 feet tall and was cast in one piece, 1 inch thick. It was colored and polished to match the counters.

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The floors throughout the first floor of the home are concrete stained in a gray color with cast-in-place concrete baseboards to match. The floor was sealed with an impregnating sealer and densifier to improve durability and provide a low-gloss matte finish.

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The floor on the second level is covered with cork because of the material's sustainability and natural beauty. A round inlay of precast polished concrete strategically placed within the cork floor echoes the stained concrete floor visible below. The wet bar, complete with a stainless steel undermount sink, is 3-inch-thick precast polished concrete, colored to match the medium-gray shade used for the kitchen countertops.

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Consistent with the rest of the home's interior design, the master bath features precast concrete vanity tops with integrated rectangular sinks, a concrete tub surround, and concrete shower walls. The elegant bone color for all the elements was achieved with iron-oxide pigments, and the surfaces were polished and sealed with impregnating sealers. The floor is concrete as well, trowel applied over a wood subfloor and sloped to eliminate a curb around the shower. The concrete shower pan was cast in place to match the floor, and the shower walls and ceiling are precast 1-inch-thick polished concrete panels. Bolts cast into the concrete ceiling panels attach to the rafters.

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The tub in the master bath is an undermount design accented by polished precast concrete panels and a concrete deck.

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The powder room door is surrounded by a concrete feature wall that extends two stories (20 feet) high. The concrete was hand troweled in three coats over fiber-cement backerboard, resulting in a textured, stucco-like finish. The color is a medium gray with dark gray highlights achieved by over-troweling with a microtopping.

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The highlight of the outdoor entertaining area is a swimming pool with an overflow edge so the water level is flush with a stained concrete deck. The concrete pool liner incorporates glass-bead aggregate that, together with the overflow edge design, give the pool a mirror-like appearance. The exterior patios and pool deck are stained and sealed to match the interior floors. The outdoor kitchen has precast polished concrete countertops 2 inches thick.