Chesapeake Climate Zone & Energy Code

Climate Zone: IECC Climate Zone 3A (mixed-humid). Chesapeake's Hampton Roads position produces hot, humid summers (92°F/78°F cooling design) and cold winters (20°F heating design). Coastal and swamp proximity increases ambient humidity throughout the year.

Energy Code & Manual J Requirement: Virginia Energy Code (IECC 2021). ACCA Manual J required for residential HVAC permits in the City of Chesapeake and all local jurisdictions.

Local Electric Utility: Dominion Energy Virginia (Dominion Power)

Building Department: City of Chesapeake Department of Permits & Inspections

Local Trade Association: ACCA Mid-Atlantic Chapter