YES — Maine has adopted 2015 IECC which requires HVAC loads be calculated per ACCA Manual J for new construction and major renovations.
Maine has adopted 2015 IECC as the statewide energy code for residential construction.
Primary zone covering Portland and surrounding areas
Additional zone in Maine
Local Maine contractors typically charge $150-400 for Manual J calculations. AutoHVAC offers your first Manual J calculation completely FREE with permit-ready results in 60 seconds — no credit card required.
Yes. Maine follows 2015 IECC which requires heating and cooling loads be calculated per ACCA Manual J for permits on new construction and major HVAC work.
You can get a free Manual J calculation for Maine instantly at AutoHVAC — upload your blueprint and receive a permit-ready report in 60 seconds. Alternatively, local Maine HVAC contractors charge $150-400 with 3-7 day turnaround, or you can use DIY software like Wrightsoft or CoolCalc ($5-200+/month).
Maine includes IECC climate zones 6A, 7. Zone 6A is most common, covering cities like Portland, Lewiston, Bangor. Climate zone data determines design temperatures and insulation requirements used in Manual J calculations.
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