Both stop the sun at the facade, but for different jobs: the roller shutter blacks out and protects, the zip screen shades and keeps showing you the outside. In most homes the two are used together: roller shutters at the windows, a zip screen on the terrace.
| Feature |
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|---|---|---|
| What it does | ||
| How it closes | Aluminium slats close one over the other | A technical fabric zips into the guides on both sides |
| Full blackout | Yes | No; as much light passes as the fabric lets through |
| Seeing out while closed | No | Yes; the view out from inside remains |
| Insects and wind | Passes through the gap between slats | The zipped edge stops insects and wind |
| Safety | A physical barrier when closed | None; fabric is not a barrier |
| Construction and size | ||
| Material | Polyurethane-filled or extruded aluminium slats | Copaco / Serge Ferrari screen fabric |
| Contribution to thermal insulation | An insulated box and a closed slat layer | An air buffer in front of the glass; no insulated box |
| Largest application | 5500 × 3500 mm, 13 m² | 16 m² vertical · 24 m² ceiling (single unit) |
| Wind resistance | — | 172 km/h (Zipline Neo, METU Rüzgem) |
| Sloped application | No; vertical only | Yes; over glass roofs and pergolas |
| Use | ||
| Where | Bedrooms, living rooms, shop frontages | Balcony, terrace, pergola, winter garden |
| Control | Tubular motor; remote, switch, smart home | Tubular motor; remote, wind and sun sensor |
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