Cargo Container Insulation: Stop “Container Rain” & Control Temperatures

Repurposing steel intermodal shipping containers (Conex boxes) for storage, workshops, tiny homes, or job site offices presents a severe moisture problem known as “container rain.” Because Corten steel transfers outdoor temperatures instantly, warm interior air condenses against the freezing steel ceiling and walls, dripping water onto valuable cargo, tools, and framing. Tiger Foam™ closed-cell spray polyurethane foam bonds directly to the corrugated steel profile, eliminating the thermal bridge, stopping condensation permanently, and dampening exterior rain noise.

Key Application Benefits

• Permanently Stops “Container Rain”: Seals the steel substrate directly, preventing interior warm moisture from ever contacting the cold steel dew point.
• Monolithic Contoured Coverage: Easily follows the complex inner corrugation peaks and valleys without leaves, seams, or voids common with rigid foam board installations.
• Maximizes Usable Interior Width: Delivering R-6.5+ aged R-value per inch, a 2-inch application achieves robust thermal protection (R-13) while preserving maximum interior floor space inside narrow 8-foot container walls.
• Acoustic & Vibration Deadening: Bonds tightly to corrugated steel walls, dramatically reducing interior drumming from heavy rainfall, exterior highway traffic, and wind rattle.