What other types of energy efficiency improvements qualify for the tax credits?
Homeowners may be able to qualify for the tax credits if they make qualified improvements to windows and doors including skylights, storm windows and storm doors; roofing including metal and asphalt roofs; and insulation. All of these improvements qualify, but homeowner may only claim $1500 in total for any improvements. The exception to this is for geothermal heat pump applications and installations, where there is no limit on the tax credit amount.