Architectural Building Facade & Sun-Shading Grating

A 12-story commercial office building in a subtropical coastal city needed a ventilated facade and external sun-shading system to reduce solar heat gain on its west-facing glazing. The architect specified a perforated, open-weave material that would let air circulate behind it (reducing the heat stack effect in the facade cavity) while blocking direct sun on the glass. Steel was rejected because of coastal salt-spray corrosion and the weight it would add to the facade substructure; aluminum was rejected because it conducts heat and requires regular repainting in coastal air. The architect also required a custom color matched to the building's brand palette, with a matte, non-glare finish.

Engineering specified UV-stabilized vinyl ester molded grating, custom-colored in the factory, mounted as vertical facade panels and horizontal brise-soleil blades. Client identity is kept confidential; the project is described as Confidential Client, a commercial building owner and architect.

ZeAllgrate supplied 1,100 m² of 38 mm UV-stabilized ZeAll VE molded grating, custom-colored to the architect's RAL reference in a matte finish. Panels were fabricated as 1200 × 2400 mm vertical facade modules and as horizontal brise-soleil blades on the west elevation. The open mesh allows air to circulate through the facade cavity, reducing the heat stack effect that would otherwise drive hot air past the glazing. Because FRP is roughly 75% lighter than steel, the facade substructure could be designed with smaller aluminum extrusions, reducing both material cost and installation time.

All panels were pre-drilled in the factory for the SS316 stand-off brackets, so the facade contractor could clip panels to the substructure from a suspended scaffold without on-site cutting. The matte color-matched finish reads as a deliberate architectural element rather than an industrial grating, and has shown no salt-spray corrosion in the coastal atmosphere.