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Traditional Box Sash Windows - Double
These timber sash windows embrace the all style and function of traditional box sash windows, enhanced with modern construction and materials. Smooth-running and robust, they feature a classic weight-and-pulley mechanism.
Suitable for non-listed buildings and contemporary developments, they come in a selection of hardwood and softwood frame finishes, plus RAL colours, to provide freedom of design.
With the option of safety glass, obscured glass, acoustic glass or solar control glass, the windows can be tailored for every situation, offering impressive technical performance too, demonstrated by wind load testing, water permeability and air tightness test results.
| Platform | Compatible | Version | Certified to |
|---|---|---|---|
IFC
|
- | 1 | 2.1 |
Revit
|
2017 + | 1 | 2.1 |
| IfcExportAs |
|
IfcWindowType |
| IfcExportType |
|
WINDOW |
| AirPermeability |
|
Class 4 |
| ChildRestrictor |
|
Angel lock standard, traditional sash stop optional |
| FrameProfileMoulding |
|
Ovolo 1, ovolo 2, lambs tongue 1, lambs tongue 3 |
| FrameStandard |
|
100 x 160 mm |
| GlassTypeOptions |
|
Safety glass, obscured glass, acoustic glass, solar control glass |
| Glazing |
|
Double glazed, 4/16/4 low-E top sash ȓ 4 toughened/16/4 toughened bottom sash - standard, Ug-value: 1.1 W/m²K; g-value: 0.52 |
| GlazingBeads |
|
Internally beaded |
| Mechanism |
|
Sashes are hung on cords or chains, operating over pulleys and counter balanced with lead weights |
| Mullion |
|
200 mm wide (130 mm for triple sash with fixed outer sash) |
| Operation |
|
SLIDINGVERTICAL |
| PartingBeads |
|
Timber |
| PerimeterSpacerBars |
|
White warm edge perimeter spacer with white warm edge integral spacers - standard, silver and black spacer optional |
| Sash |
|
39 x 55 mm top rail and stiles, 90 x 55 mm bottom rail, 45 x 55 mm meeting rail |
| SillProjection |
|
35 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, 100 mm, 110 mm |
| TrickleVentilation |
|
Concealed through frame head trickle ventilator, EA 1700, 4400, 5000 mm² |
| UValue |
|
1.6 W/m²K |
| WaterTightness |
|
Class 4A |
| Weatherseal |
|
Double weather sealed |
| WindLoadResistance |
|
Class C4 |
| WoodMoistureContent |
|
12 - 19% |
