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.
From there, the pricing is extremely variable, with Techo-Blocâs Monticello paver being one of the more expensive Iâve seen (but a really cool product). In general, a normal-sized patio or walkway runs from $15 to $22 per square foot installed.he cleanest, most maintenance-free installation method is to pour a new concrete slab with the flagstone wet-laid with mortar. For rectangular patterned flagstone, the installed price ranges from $18 to $33 per square foot.