Salt acts like fine sandpaper, scuffing protective layers and wicking moisture into tiny cracks. Rinse exteriors quarterly with fresh water, then apply breathable, marine-grade sealers on wood and masonry. Re-caulk joints before storm season, paying special attention to window trim, flashing joints, and deck-to-house interfaces. Document dates, products used, and weather conditions, so adjustments become easier and results more predictable each year.
Corrosion starts where dissimilar metals meet salt-rich moisture. Choose 316 stainless, hot-dip galvanized, or silicon bronze fasteners, and avoid galvanic pairings that accelerate decay. Inspect railings, hinges, latches, and exterior lighting every season, touching up with rust-converting primers where necessary. Consider sacrificial anodes near docks and metal fences, and keep a small maintenance kit ready for spot treatment after storms or heavy spray weeks.
Salty air easily infiltrates, raising humidity and inviting mustiness. Target 45–55 percent indoor relative humidity using balanced ventilation, sealed ductwork, and a properly sized dehumidifier. Clean ERV cores, replace filters on schedule, and monitor problem areas like closets or basements. Record readings weekly during humid periods, then tweak ventilation runtimes and door habits. Share frustrating moisture challenges in the comments to crowdsource clever ideas that actually work.