Can energy savings deductions (insulation, exterior doors, low-E windows, skylight) be applied to an unattached garage on the primary residence?
The law states that products are covered if "such component is installed in or on a dwelling unit located in the United States..."
Detached structures may be considered part of the "dwelling unit" if you use them as part of your living space, for example, as a workshop, or an extra bedroom.
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