Our waterproof shipping container houses provide complete moisture protection through multi-barrier systems. The waterproofing package includes: marine-grade polyurethane deck coatings (20mm thickness), continuous sill pan flashing at all openings, and triple-sealed corner joints. The walls incorporate: drained cavity rain screens, capillary breaks at all cold bridges, and breathable vapor barriers. Below-grade waterproofing options feature: bituminous membrane wraps, cathodic protection systems, and sump pump pre-installation. Special high-humidity configurations include: anti-condensation insulation systems, desiccant ventilation units, and mold-inhibiting interior finishes. The roofs utilize: standing seam metal panels with concealed fasteners, slope-inducing tapered insulation, and redundant membrane protection. All penetrations are sealed with: compression gaskets, hydraulic cement collars, and redundant flashings. The waterproof designs are tested under 72-hour flood simulation and 1000-hour salt spray exposure. For marine environments, tidal zones, or areas with extreme precipitation, contact our building envelope specialists for climate-specific waterproofing solutions.