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The Spectus vertical slider combines perfect proportions, period details and traditional techniques. Both frames and sashes can be mechanically jointed, avoiding the ‘giveaway’ mitred weld of PVC-U.
The Spectus vertical slider is engineered to insulate and keep homes protected from the elements.
24mm double glazing is standard, and for exceptional energy efficiency, the multi-chambered sections can be enhanced with the addition of purpose-made recycled thermal inserts.
Pile seals to the sash and outerframe prevent the draughts that are common with timber frames and features like our optional, dedicated weather bar add another level of defence against rainwater. These frames are durable, tough, resistant to the forces of nature and need next to no maintenance.
Our windows can be fully mechanically jointed, achieving the appearance of a timber frame’s construction. Foiled finishes give the option of textures and period colours – the appearance has been nailed. Add to that our durability, security and energy efficiency and you’ve got a very persuasive argument.
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When sprung outwards, they prevent sashes opening more than a set amount. Turning the key retracts and secures the stops allowing the sashes to slide past and open fully.
Trickle ventilation units have a slide-open-and-closed operation. Take care not to damage the unit when sliding the bottom sash up.