https://ttlc.intuit.com/community/state-taxes/discussion/how-do-i-get-federal-tax-credit-for-a-solar-exhaust-fan-on-a-newly-reshingled-roof/00/621932
Solved: How do I get federal tax credit for a solar-exhaust fan on a newly reshingled roof?
Aug 28, 2019 - Solved: How do I get federal tax credit for a solar-exhaust fan on a newly reshingled roof?