Salt air, sealed penetrations and hardware that survives the bay
Seabrook sits close enough to open water that salt air reaches everything on the outside of a house. Plated steel hardware on a bay-facing wall will show rust bleed within a season or two, and rust bleed on a light-colored soffit is close to impossible to clean off. That is why exposed brackets, lag bolts and washers on a Seabrook exterior are 316 stainless rather than the zinc-plated hardware that is fine indoors. Sealing matters as much as metal. Every penetration through an exterior wall or soffit gets a marine-grade sealant collar the same day, sloped so water sheds away rather than wicking in behind the bracket. Cable leaving the conditioned space is rated for wet locations and dressed with a drip loop. Humidity, windstorm season and hurricane surge exposure make this ordinary practice in Seabrook, not an upsell. Indoors none of it applies, and a den wall two rooms from the bay gets standard plated lag bolts. Price follows screen size and wall material, never the hardware we choose.