Finish warranties may distinguish appearance, corrosion, exposure conditions, and maintenance. Their terms can differ across products from the same manufacturer. A product marketed for coastal settings still needs review against the actual warranty.
What to do next
Request the applicable document for the selected finish and substrate. Check address-related conditions with the provider where needed. Keep written responses and owner obligations with the roof records so future decisions do not rely on a broad marketing label.
Related Perkins guidance
Contact Perkins Roofing to discuss your roof and the appropriate next step.