Along the Strand and inland
Horry County runs from oceanfront to tobacco country in under an hour. The roofs change all the way along.
The single biggest variable is distance from salt water. It changes which parts fail first, what the metal should be specified as, and how often a roof wants looking at.
Conway
Fifteen miles inland and a different roofing problem. Trees and damp rather than salt and wind.
North Myrtle Beach
Dense, largely rented, and a good deal of it under an association that has opinions about your roof.
Surfside Beach
Older beach cottages next to newer builds, which means two very different roofing conversations on one street.
Murrells Inlet
Salt marsh on three sides, which is a different corrosion environment from open beach and arguably a harder one.
Little River
Up at the North Carolina line, with a lot of older waterfront property and a lot of absent owners.
Loris
Inland Horry County, farm country, and far enough from salt that coastal pricing stops making sense.