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Spring sash windows

Engineered to the highest standards, our spring sash windows exude quality and style. They take their blueprint from the traditional sash window, yet this modern alternative is the go-to choice for many architects and designers.
Engineered to the highest standards, our spring sash windows exude quality and style. They take their blueprint from the traditional sash window, yet this modern alternative is the go-to choice for many architects and designers.

Modern spring sash windows operate in a smooth and seamless manner. By replacing the original cord with a spring-loaded mechanism, the windows are much easier to slim down. This enables sections of the frame to need less room for housing the extra reveal space (where the heavy weights and pulleys were once placed). This modern solution has become ideal for housing slimline window cavities.

Traditional and spring systems operate really well. The difficult part is which to choose?

Specifications

Downloads Downloads
Traditional Sash Windows with Spiral Balances
PDF CAD
Product guidance - as standard
Frame
55 x 160 mm (lining width x frame depth), manufactured using mortise and tenon joints, glued and mechanically fixed.
Sash
39 x 55 mm top rail and stiles, 90 x 55 mm bottom rail, 45 x 55 mm meeting rail.
Mullion/transom
110 mm wide (70 mm for triple sash with fixed outer sash).
Sill projection
35 mm, 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm.
Staff / parting beads
Timber.
Wood moisture content
12-19%.
Glazing beads
Internally beaded.
Product specification
Material
Frame+Sashes Engineered redwood, Bottom Cill in Solid Hardwood - Standard. Engineered hardwood, Accoya, European oak.
Finish
Three coat spray applied factory finish using water based micro-porous paint/ stain.
Colour
White - RAL 9016 - Standard. Any RAL - from RAL classic range. Stain - from stain range.
Glazing
Double glazed, 4/16/4 Low-E top sash – 4toughened/16/4 toughened bottom sash - Standard, Ug-value: 1.1 W/m²K; g-value: 0.52;
U-value
1.5 W/m²K - double glazed.
Perimeter spacer bars
White warm edge perimeter spacer with white warm edge integral spacers - Standard. Silver and Black spacer optional.
Frame profile moulding
White warm edge perimeter spacer with white warm edge integral spacers - Standard. Silver and Black spacer optional.
Trickle ventilation
Concealed through frame head trickle ventilator. EA 1700, 4400, 5000 mm²
Child restrictor
Angel lock standard. Traditional Sash Stop optional.
Glazing Bars
Applied 18 & 22mm glazing bars to external faces of double glazed unit
Downloads Downloads
Traditional Sash Windows with Spiral Balances
PDF CAD

Get in touch

Get in touch

Get in touch

Thanks for getting in touch.
We'll get back to you shortly.

Need an urgent response?

Call Head Office
+44 (0) 1858 469 225
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