uPVC Windows
ENCRAFT Vertical Slider Windows
ENCRAFT Vertical Slider Windows combine a traditional window concept with modern uPVC engineering, making them particularly suitable for openings where the height is greater than the width. They are an ideal solution for ancillary frames, ventilation openings, and applications where an opening sash is required for ventilation or fire escape.
ENCRAFT Vertical Slider Windows
ENCRAFT Vertical Slider Windows combine a traditional window concept with modern uPVC engineering, making them particularly suitable for openings where the height is greater than the width. They are an ideal solution for ancillary frames, ventilation openings, and applications where an opening sash is required for ventilation or fire escape.
The system is designed around the proportions of taller window openings, including configurations approaching the golden ratio of 1:1.618. Its straightforward operation is achieved through a pair of frame-specific, site-tensioned spiral balances, which allow the sash to remain securely open at virtually any desired position.
Modern spiral-balance technology replaces the conventional weights and pulley mechanism, reducing the space required within the frame and allowing the vertical slider to be effectively installed in both straight-through and reveal aperture configurations.
Key highlights
- Contemporary Softline Design: A clean and modern profile appearance suitable for a variety of architectural styles.
- 10 mm Sash Overlap: Designed to improve sealing and enhance overall window performance.
- Flexible Glazing Options: Supports glazing configurations from 4 mm single glazing up to 22 mm double-glazed units.
- Integrated Handle Bead: Designed for convenient and easy sash operation.
- Special Spiral Balances: Engineered according to the sash weight and frame dimensions for smooth and controlled movement.
- Espagnolette Locking: The opening sash is secured with an espagnolette locking mechanism for reliable closure and security.
Frequently asked questions
uPVC insulates far better and costs less for ordinary residential openings. Thermally broken aluminium is stronger, so it carries larger panels with slimmer frames. We usually specify uPVC for bedrooms, kitchens and bathrooms, and aluminium for very large sliders, stairwell glazing and anything above about 2.4 metres tall.
Not if the profile is UV stabilised and lead-free, which ours are. Yellowing happens with cheap unstabilised profile or recycled material. We supply a written warranty against discolouration.
An acoustic laminated inner pane inside a double-glazed unit, with the two panes at different thicknesses and a wide cavity. Just as important, choose a casement or tilt-and-turn window rather than a slider, because the sash needs to compress onto its gaskets to seal.
Yes. We bend profile on a heated forming table from a site template, so semi-circular, segmental and elliptical heads are all possible, fixed or with an operable lower sash.
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