Climate
Marco Island's humidity and CBS construction make hidden moisture the real risk.
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Year-round salt aerosol accelerates corrosion on HVAC coils, metal framing connectors, and electrical components — combined with humidity routinely above 75%, this creates ideal conditions for mold growth inside the wall cavities of beachfront properties, particularly in seasonally vacated units where the HVAC has been shut off or set to a non-dehumidifying setpoint.






