“A recent tax law change provides a tax credit to improve the energy efficiency of existing homes. The law provides a 10 percent credit for buying qualified energy efficiency improvements. To qualify, a component must meet or exceed the criteria established by the 2000 International Energy Conservation Code (including supplements) and must be installed in the taxpayer’s main home in the United States.

The following items are eligible:

Insulation systems that reduce heat loss/gain
Exterior windows (including skylights)
Exterior doors
Metal roofs (meeting applicable Energy Star requirements).”

Their full article can be found at:

http://www.irs.gov/newsroom/article/0,,id=154657,00.html

Before you run out and buy materials, though, check out this link for 10% off qualifying Lowe’s purchases up to $5,000