Greensboro Climate Zone & Energy Code
Climate Zone: IECC Climate Zone 4A (mixed-humid). Greensboro's higher Piedmont elevation produces slightly cooler summer design (93°F/74°F cooling design) and a colder heating design (18°F) than Charlotte or Raleigh at lower Piedmont elevations.
Energy Code & Manual J Requirement: North Carolina Residential Building Code (IECC 2015 with NC amendments). ACCA Manual J required for Guilford County and all Triad region HVAC permits.
Local Electric Utility: Duke Energy Progress
Building Department: City of Greensboro Inspections Department
Local Trade Association: ACCA Carolina Chapter / ASHRAE Carolinas Chapter