1 Confirm that the metal roof you select is a painted or coated Energy Star-labeled metal roof and obtain certification from your contractor or the manufacturer.  Have the metal roof installed between January 1, 2009 and December 31, 2010.
1 A plain concrete walkway costs $4 to $6 per square foot. 2  Adding a single color or simple finish to the concrete raises the price to $6 to $10 per square foot. Expect to pay $8 to $12 per square foot for multiple colors or more elaborate patterning such as stamping or engraving. 2  Fully-custom walkways with a high level of hand-applied details (such as chemical stains or stenciling) cost $12 to $15 and up.
Video on the cost of concrete floors. Depending on the level of complexity, concrete floors can cost as little as $2 to $6 a square foot or be as expensive as $15 to $30 a square foot.s the chart below shows, the average per-square-foot costs of basic stained or polished concrete floors are competitive with what you would expect to pay to install linoleum, vinyl flooring, ceramic tile and high-quality carpeting.