Salt and moisture decide the system, not the brand
Salt exposure, trapped moisture, chalking, and failed caulk lines matter more to the coating system than any product name.
What a coastal scope should cover
- Existing conditions and likely cause
- Preparation and protection
- Materials, compatibility, and installation details
- Permits, testing, cleanup, and restoration
- Exclusions, warranty terms, and change-order process
Wilmington context
Coastal exposure is unusually hard on a coating, and it works through three separate mechanisms rather than one. Intense sun degrades the film and drives color change far faster here than a few counties inland. Salt air deposits on surfaces and has to be washed off rather than painted over, or it undermines adhesion from beneath. And wind-driven rain arrives horizontally, finding the gaps at trim, corners and window heads that a vertical drip never tests -- which is why sealing and flashing detail decide longevity more than the product tier does. The building stock adds its own constraints. Wilmington's large historic district means exterior color and material on a designated property can be subject to review, and the old wood substrates there carry many coating layers that in housing of that age may be lead-bearing, which governs how they may be prepared.