Tax credits that were 30% up to $1,500 EXPIRED on December 31, 2010. New tax credits were passed, but at lower levels.
2011 Tax Credit Amount: 10% of the cost, up to $500
"Metal roofs with appropriate pigmented coatings" and "asphalt roofs with appropriate cooling granules" that also meet ENERGY STAR requirements.
Tax Credit does NOT include installation costs.
A tax deduction of up to $1.80 per square foot is available to owners or designers of new or existing commercial buildings that save at least 50 percent of the heating and cooling energy of a building that meets ASHRAE Standard 90.1-2001. Partial deductions of up to $.60 per square foot can be taken for measures that meet the criteria for any one of three building systems: the building envelope, lighting, or heating and cooling systems. These tax deductions are available for systems “placed in service” from January 1, 2006 through December 31, 2013.