This modular retrofit kit features 6063-T6 aluminum vertical sunshade fins, 4 mm thick, with elliptical perforations (14 × 6 mm) providing 42% open area. Panels are coated with RAL 7035 dual-layer PVDF finish for corrosion, UV, and chemical resistance. Mounted 180 mm off the container shell using ASTM A500 Grade B subframe tubing and ASTM F1554 anchor bolts, the system integrates a double-skin thermal barrier cavity. The inner cavity includes ceramic thermal insulation and airflow baffles, enabling passive upward convection airflow at 0.52 m/s. Fire safety is validated to ASTM E84 Class A; corrosion protection meets ISO 12944-6 C5-M standards. CFD modeling and field data confirm a 12.5 °C surface temperature reduction, 5.3 dBA acoustic attenuation, and high sand abrasion resistance. Designed for rapid installation under 5 hours per unit and suitable for emergency housing, industrial field camps, and mobile modular architecture.
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