Can a bathroom this close to the bay ever fully dry out?
It can, but not with the exhaust fan the builder installed. Those fans are often undersized for the room, vented into the attic instead of through the roof, and wired to the light so they run for the two minutes someone is in the room. In League City's humid air, a shower enclosure that stays damp all day grows mildew on the grout and eventually behind it. We size the fan to the room volume, duct it through the roof with a proper cap, and wire it to a humidity sensor or a timer so it keeps running after you leave.
The rest of the moisture strategy is in the details. A shower with a glass door instead of a curtain dries faster. A window in the shower, common in 2000s plans, gets a sill and trim that sheds water rather than absorbing it. Paint is a moisture-resistant grade and the ceiling gets primed properly. We also look at whether the bathroom shares a wall with the patio or the garage, since those walls take more moisture than interior walls and need the vapor barrier detailed carefully before the tile goes on.










