All three use the same slats and motor options; they differ in where the box sits and at which stage of construction they go in.
| Feature |
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|---|---|---|---|
| Installation | |||
| Where the box sits | On top of the window frame | In the lintel recess, closed off by plaster | Above the existing window, visible on the facade |
| At which stage | New build and window replacement | Shell construction (the recess is left in advance) | Renovation; without breaking the facade |
| Appearance from outside | A slim line | Box invisible; only slats and guide rails | Box visible on the facade |
| Service access | From inside, through the box lid | Through the bottom cover; from outside or inside | Through the box cover |
| Construction | |||
| Box material | Insulated PVC/aluminium box | Site-built box or EPS box | Polyurethane-filled or extruded aluminium |
| Slat options | 39/43/55/77 mm foam-filled · 45/55/77/100 mm extruded | 39/43/55/77 mm foam-filled · 45/55/77/100 mm extruded | 39/43/55/77 mm foam-filled · 45/55/77/100 mm extruded |
| Largest application | 5500 × 3500 mm, 13 m² (100 mm extruded) | 5500 × 3500 mm, 13 m² (100 mm extruded) | 5500 × 3500 mm, 13 m² (100 mm extruded) |
| Contribution to thermal insulation | The insulated box cuts the loss around the window | Box inside the wall; an insulation detail is needed to avoid a thermal bridge | Box outside; limited contribution to insulation |
| Use | |||
| Motor and control | Tubular motor; remote, switch, smart home | Tubular motor; remote, switch, smart home | Tubular motor; remote, switch, smart home |
| Colour | All RAL colours | All RAL colours | All RAL colours |
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