Missing or Blown-Off Shingles
in Charlotte, NC

Charlotte sits in a region frequently impacted by severe convective storms and the remnant circulation of Atlantic hurricanes tracking inland through the Carolinas, generating sustained winds and gusts that create powerful negative pressure on roof surfaces. Shingles that were improperly nailed, have brittle sealant strips from age, or were installed at the minimum code fastener standard are easily peeled back and torn free under these uplift forces.

Asphalt shingles rely on a factory-applied thermally activated sealant strip to bond each course to the one above it, but Charlotte's intense summer heat — with rooftop surface temperatures routinely exceeding 160°F — accelerates the oxidation and brittleness of this adhesive over time. Once the sealant strip fails, shingles are held only by their nails and can be flipped, cracked, and ejected by moderate wind events that a newer roof would easily survive.

During Charlotte's rapid suburban expansion through Cabarrus, Union, and Mecklenburg Counties in the late 1990s and 2000s, some roofing crews nailed shingles too high above the nail line — a defect called high-nailing — which dramatically reduces each shingle's pull-through resistance. These improperly fastened shingles are statistically far more likely to be lost during the first significant wind event they encounter.