Heritage Sash Windows - Double
Heritage sash windows constructed to match box sash windows crafted more than a century ago. The sash windows, with the classic weight-and-pulley mechanism, are a suitable choice for replacement windows in listing buildings, whilst also suiting high-end architect-led new developments.
Traditional putty is used externally to secure high-performance Slim Sightline double glazing. Available single or double glazed, the authentic-looking Slim Sightline double glazing has good acoustic and thermal performance. Solid glazing bars are supplied as standard.
Bespoke windows and doors are available; consult manufacturer for details.
Size | As drawing Insert reference. As schedule Insert reference. |
Material | Engineered Accoya Engineered European oak Engineered hardwood Engineered redwood Standard. |
Finish | Dual finish Insert requirement. RAL classic range Insert requirement. Stain Insert requirement. |
Color | Colour from RAL classic range - standard, dual finish or stain - optional |
Features | Echo the style of historic windows, good for refurbishment projects, single or double glazing available |
Shape | Rectangle |
Uniclass 2015 | |
CAWS | L10/10 Wood windows L10/210 Wood windows |
Product Reference | Heritage Sash Windows |
Size | As drawingInsert reference. As scheduleInsert reference. |
Material | Engineered AccoyaEngineered European oakEngineered hardwoodEngineered redwoodStandard. |
Sill projection | 35 mm50 mm60 mm70 mm80 mm90 mm100 mm110 mm |
Horns | Not requiredAs drawing |
Horns | Not requiredType H1Type H2Type H3Type H4Type H5Type H6 |
Windowboard groove | RequiredNot required |
Solid bars | 24 x 45 mm ovoloAs drawing |
Finish | Dual finishInsert requirement. RAL classic rangeInsert requirement. StainInsert requirement. |
Glazing | - |
Type | 14 mm double glazed Slim Sightline (8.5 mm) unitStandard, 4 mm/ 6 mm argon/ 4 mm low-E externally glazed using Heritage hand-faced putty. 12 mm double glazed Slim Sightline (8.5 mm) unit4 mm/ 4 mm argon/ 4 mm low-E externally glazed using Heritage hand-faced putty. 6 mm toughened single glass externally glazedUsing Heritage hand-faced putty. Single glazed, 4 mm thick toughened single glass, externally glazedUsing Heritage hand-faced putty. |
Perimeter spacer bars | WhiteStandard. Black |
Trickle ventilation | Not requiredConcealed through frame head trickle ventilator |
Child restrictor | Not requiredAngel lockStandard. Traditional sash stop |
Standard product features | Frame: 100 x 140 mm (lining width x frame depth), manufactured using mortise and tenon joints, glued and mechanically fixed. Sash: 39 x 45 mm top rail and stiles, 90 x 45 mm bottom rail, 45 x 45 mm meeting rail. Mullion/ transom: 200 mm wide (130 mm for triple sash with fixed outer sash). Staff/ parting beads: Timber. Wood moisture content: 12–19%. Glazing beads: External traditional putty glazed. Sill: Solid hardwood. Horns: Solid feature horns to top sashes are included as standard. Fittings: A lockable Fitch fastener and two finger pulls to the bottom sash. Mechanism: Sashes are hung on cords or chains, operating over pulleys and counterbalanced with lead weights. Weather seal: The window is fully weather sealed to BS EN 6375-1. Performance:
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Product Options | Finish: Three coat spray applied factory finish using water based micro-porous paint/ stain. Trickle ventilation: Concealed through frame head trickle ventilator. 1700 mm², 4400 mm² or 5000 mm² air flow dependent on frame width. |
Platform | Compatible | Version | Certified to |
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![]() | - | 1 | 2.1 |
![]() | Revit 2017 | 1 | 2.1 |
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