How zip screens work, wind resistance ratings and energy savings.
A ZIP screen is a motorised exterior fabric screen guided by aluminium ZIP rails on both sides. The zip-lock mechanism prevents wind uplift — reviewed for project wind exposure. Unlike traditional blinds, ZIP screens seal the opening completely, can substantially reduce solar heat gain when fabric openness, glass area and orientation are selected correctly while maintaining outward visibility.
External shading can reduce cooling demand compared with internal blinds, depending on glass area, orientation and fabric openness. The g-value (solar heat gain coefficient) drops from 0.6 to under 0.1 with a ZIP screen deployed. This makes ZIP screens a strong passive cooling strategy when facade orientation, fabric openness and glazing are specified together.
Three main configurations: vertical window mounting (Luxa 100), top-down horizontal for pergola roofs (Luxa 100T), and facade-integrated systems (Luxa 100M/S). Each uses the same ZIP rail principle but adapts to different mounting orientations. Maximum single-panel area: 30 m² (Luxa 100T).
Screen fabrics range from sunscreen mesh (1–10% openness factor) to blackout (0% openness). RTS-compatible tubular motors with wireless control, rain/wind sensors for automatic retraction. Integration with building management systems (BMS) via KNX or Modbus protocols.
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