Gulfport Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 2A (hot-humid). Gulfport's Gulf Coast location produces subtropical conditions with persistent high humidity, a very long cooling season, and essentially year-round dehumidification demand.

Energy Code & Manual J Requirement: Mississippi State Building Code (IECC 2009). ACCA Manual J required for Harrison County HVAC permits. Coastal areas may have wind-borne debris region requirements affecting envelope specifications and Manual J inputs.

Local Electric Utility: Entergy Mississippi

Building Department: City of Gulfport Building Department

Local Trade Association: ASHRAE Mississippi Chapter