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Handle Operation: A single handle controls both functions. Typically, from locked position (handle down) – turn handle 90° upward and the top tilts in (~100mm or so, limited by restrictors) for ventilation. Return to closed, then turn handle 180° (pointing up) and the side hinges engage to allow full inward swing. There are safety interlocks to prevent misuse (for example, it won’t let you turn to swing mode while it’s tilted – you must close it first). Handles usually have an indicator of positions and can be key-lockable if desired for security or child safety.
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Size Capacities: We can manufacture fairly large tilt & turn sashes – often up to 1.5m wide by 2.4m tall per sash, depending on weight (these are heavy with glass, so typically there are recommended limits around 100-130 kg per sash for safe operation). If a window is larger than the hardware limits, we might split it into two sashes or include fixed lights. But rest assured, you can get big, floor-to-ceiling tilt & turns (common in modern homes as Juliet balcony doors – they turn open like a door for balcony access, and tilt for vent) – in fact, many use them as an alternative to French doors where space doesn’t allow outward opening.
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Ventilation & Micro-vent: In addition to the tilt mode, some hardware allows a “night vent” position – a very slight jar (a few millimeters open) while handle locked – but on these windows, the tilt is effectively the vent mode. It provides abundant airflow but in a controlled, upward draft manner (air comes in through top). This is more secure than a fully open casement since the opening gap is small and at the top, but note: it’s not security-proof, just more secure. We also offer trickle vents integrated into frame if required by building codes (though the tilt function often suffices for background ventilation, trickle vents might still be mandated).
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Security Features: Tilt & turn windows feature multiple locking cam rollers around the perimeter. When closed and handle locked, these cams engage keeps, pulling the sash in snugly. This multi-point system is inherently secure. We use mushroom-head locking bolts that resist forcing. Hinges are very robust; plus, because these windows open inward, any attempt to push them from outside when locked is futile (they only open inward). For added measure, we can fit things like a tilt restrictor or child-safety catch which limits how far it swings (helpful in preventing a child from fully opening it unless a catch is released).
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Tilt & Turn vs. Other Styles: These windows essentially give you two functions in one, which is their major benefit. They do have slightly thicker frames than a fixed window or basic casement, because of the hardware groove. But our modern systems have slim profiles considering the functionality. They also have an almost flush exterior (since they don’t open outward, there’s no sash protruding outside except maybe 1-2mm for gasket). This gives a neat external appearance, good for minimalistic designs or if you want the window to sit behind external cladding etc. One thing to be aware: they open inward, so you need interior space clearance (can’t have big objects or plants that would obstruct it when swinging in). But for many, that’s a minor consideration compared to the benefits.
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