Charlotte-Concord-Gastonia Metal Roofing

Charlotte metro (Mecklenburg, Union, Cabarrus, Gaston, Iredell counties, NC) is governed by the North Carolina State Building Code (Residential Code, based on 2018 IRC with NC amendments). Permitting/inspection is handled locally: City of Charlotte (Mecklenburg County LUESA for unincorporated areas and most towns via interlocal agreement), plus independent building depts for Concord, Kannapolis, Gastonia, Belmont, Mount Holly, Mooresville, Monroe, Indian Trail, Waxhaw, Huntersville, Cornelius, Davidson, Matthews, Pineville, Mint Hill, Harrisburg, Stallings, Weddington. Key roofing-relevant facts: (1) NOT a High-Velocity Hurricane Zone (HVHZ) — that designation applies only to Miami-Dade/Broward FL; Charlotte metro uses standard ASCE 7 wind provisions. (2) Basic (ultimate) design wind speed per ASCE 7-16/NC code maps is ~ 100 mph (3-second gust) for Risk Category II across the metro, Exposure Category B (suburban/wooded) in most residential areas, occasionally C in open areas — moderate compared to coastal NC (115-150 mph). No coastal V-zone/flood-velocity requirements. (3) Not designated Wildland-Urban Interface (WUI) under NC building code (WUI/ember-resistant provisions are not broadly enforced here, unlike CA); the Piedmont has moderate wildfire risk mainly in outlying/wooded exurban lots, addressed case-by-case rather than a blanket code overlay. (4) Metal roofing installers commonly must meet NC-amended IRC fastening/underlayment (self-adhered ice-and-water shield at eaves recommended though not code-mandated statewide), and HOA/ARC (architectural review committee) approval is frequently the bigger gatekeeper than the building permit in master-planned subdivisions (Ballantyne, Providence, Baxter Village-style communities, Highland Creek, etc.), since many HOAs historically restricted metal roofing on street-facing slopes — increasingly relaxed metro-wide since ~2020 as standing-seam and stone-coated steel have gained acceptance. Kannapolis/Rowan-adjacent and Cabarrus permitting references NC Building Code + local zoning overlay for the Rocky River/Lake Norman watershed protection districts (impervious-surface limits, not roofing-material specific).