The Grand Strand versus your seals
Every gap in a beach-county house is a working part. Sun-side window beads cook and split by their third summer; tub and shower joints mildew and pull loose in permanent bathroom humidity; and the sliders every beach house depends on wear out their sweeps and wool pile faster than any other door in the building. The tell is always comfort or money: a bedroom the AC cannot hold in August, a power bill that creeps every season, daylight under the door to the porch, or the gray shadow of mildew tracing a tub joint no matter how hard anyone scrubs.
Doing the job right is mostly refusing shortcuts — old caulk cut out entirely instead of buried under a fresh bead, joints dried and taped, the right chemistry in the right place. Silicone owns the wet joints around tubs and showers; exterior-grade sealants own the sun-baked window and trim gaps; painted interior trim takes a paintable acrylic. Weatherstripping is fitting work: sweeps cut to the door, compression seals matched to the gap, and the slider track cleaned of two seasons of sand before new pile goes in, because sand is why the old pile died.