Salt air accelerates corrosion in fasteners, flashing, and window frames that would last decades in a drier climate. Specifying stainless or hot-dipped galvanized hardware, marine-grade finishes on exterior wood, and properly sealed building envelopes isn't an upgrade — it's the minimum standard for a home that performs without constant maintenance. The same logic applies to roofing underlayment, HVAC equipment exposed to coastal air, and the waterproofing details at every penetration through the building envelope. When these specifications are correct from the start, the home finishes strong and stays that way.