Multi-Axis Curved Aluminum Sunshade and Vent Panels for Irregular Architectural Skins

Complex Geometry Demands Specialized Façade Engineering

In contemporary architecture, freeform and non-planar structures challenge traditional cladding and shading approaches. Buildings like cultural domes, sports arenas, and performance halls require not only a visual flow, but engineered air and light control that matches the curvature.    CNC-machined curved metal sunshade and airflow panels are tailored project-by-project using multi-axis bending and parametric control.    View: Istanbul Grand Dome Retrofit

Double-Curved Louvers with Integrated Vent Channels

Unlike flat-louver arrays, curved panels must account for 3D deformation. Using Grasshopper + SolidWorks data export, we machine elliptical louvers on 5-axis CNC stretch benders. Vent openings remain aligned along airflow zones, supported by ISO 6308 compliant rib subframes.    ASA-certified acoustic linings can be applied to inner chambers to suppress echo in reflective zones.

Case Study: Doha Bay Cultural Center

For the multi-shell Doha Bay Cultural Center, more than 1500 curved panels were fabricated from 5052-H32 aluminum. Each unit featured a 4° twist tolerance and 2.8 m radius.    Passive airflow modules behind the louvers produced 18.5 ACH and 5.7°C average temperature reduction. The full assembly met ASTM B209 and WELL Air v2 Sound & Ventilation criteria.    Featured in Architectural Digest

Glare-Free Coatings for Compound Surfaces

All panel exteriors receive low-gloss PVDF coatings, adjusted for multi-angle solar reflection using ISO 2813 methods. Dual-layer anodizing adds marine-grade corrosion resistance in coastal applications.    In Xiamen Bay Tower, panels resisted 1400+ hours of ASTM B117 salt spray with no visible corrosion.

Installation Strategy for Hyperbolic Surfaces

Instead of forcing flat panel subdivisions, modules are designed to follow the building shell’s Gaussian curvature. Mounting grids include universal brackets with variable-depth arms for anchoring onto non-parallel ribs.    Laser projectors and digital twin overlays ensure precision alignment. Project schedules typically save 18–25% compared to segmented flat-panel methods.

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