Conservation Spring Sash Timber Window
Verified by manufacturer 5 days ago
High-performance vertical timber/ wooden sliding Spring Sash Windows with period sightlines and details.
Application
Suitable for any residential, commercial properties and conservation areas.
Description
The conservation spring sash window is a modern-day alternative to the cord and weighted box sash window. It uses a concealed spring-loaded mechanism instead of the cords, weights and pulleys found in a traditional sash window, this has the advantage of allowing for a smaller structural rebate or installation into a flush reveal.
As part of the Conservation range, our spring sash windows offer a choice of frame profiles and glazing bars, along with a variety of double glass unit depths and specifications to ensure that your aesthetic, thermal and acoustic requirements are achieved.
General information
Color | White Manufacturer guidanceColours from the RAL classic range, colour matching and stains also available. |
Finish | Painted Stained |
Material | Wood Timber |
Shape | Rectangle |
Width | Bespoke |
Height | Bespoke |
Warranty description | Manufacturer guidanceTimber: 30; Glazing, ironmongery and seals: 10; Paint finish: 10; Stain finish: 5. |
Uniclass | |
CAWS | L10/10 Wood windows L10/210 Wood windows |
Product range |
Specification data - Wood window units
Dimensions and configurations | Manufacturer guidanceInsert requirements or refer to a drawing or schedule. |
Product performance | |
Weather performance | |
Air permeability | To EN 1026:2000, Class 4. |
Watertightness | To EN 1027:2000, Class 8A. |
Resistance to wind load | To EN 12211:2000, Class C5. |
Safety | |
Security level | PAS24:2016. |
Environmental | |
Acoustic performance rating | Up to 41dB Rw (38dB Rw+Ctr) subject to chosen glass specification. |
Thermal | |
Whole window U-value | 1.5 W/m2K or better subject to chosen glass specification |
Frame | |
Profile | Lambs Tongue. Ovolo. Square. |
Wood species | Engineered Redwood frame and sashes with Red Grandis external liners and meeting rails with hardwood Sapele cill. Engineered Hardwood Red Grandis. Accoya. Manufacturer guidanceEngineered clear grade knot free timber, all FSC certified. Chain of Custody can be specified. |
Chain of custody | FSC. |
Finish as delivered | Three coats of spray applied water based micro-porous paint. Three coats of spray applied water based micro-porous stain. |
Preservative treatment to wood components | Teknol Aqua 1410. |
Ventilator | Not required. Concealed through frame head trickle ventilator (reduced EA). Trickle ventilator (4600 mm EA) - Surface mounted canopy to top rail of top sash. |
Frame horns | Sash horns not required. Sash horns required. |
Glazing or infill | |
Requirements | 24 mm Double glass unit comprising 4 mm Tough / 16 mm Argon / 4 mm Tough Low E 1.2. 24 mm Double glass unit comprising 4 mm Tough / 16 mm Argon / 4 mm Tough Low E 1.0. 24.8 mm Acoustic Double glazed unit comprising 6.8 mm Sound Control Laminate / 14 mm Argon/ 4 mm Tough Low E 1.2. 24.8 mm Acoustic Double glazed unit comprising 8.8 mm Sound Control Laminate / 10 mm Krypton/ 6 mm Tough Low E 1.0. 27.6 mm Enhanced Acoustic Double glass unit comprising 10.8 mm Sound Control Laminate / 10 mm Krypton / 6.8 mm Sound Control Laminate Low E 1.0. 14 mm Double glass unit comprising 4 mm Tough / 6 mm Krypton / 4 mm Tough Low E 1.0. 16.8 mm Double glass unit comprising 6.8 mm Laminate / 6 mm Krypton / 4 mm Tough Low E 1.0. Single glass 4 mm Toughened. Single glass 6 mm Toughened. Single Glass 6.8 mm Sound Control Laminate. Single Glass 4.5 mm Goetheglas Restoration Glass. Manufacturer guidanceInternally dry glazed and vented with glazing tapes in accordance with Glass and Glazing Federation requirements. |
Hardware | Polished brass sash catch. Polished brass sash lifts. Polished brass sash lock. Polished chrome sash catch. Polished chrome sash lifts. Polished chrome sash lock. Satin chrome sash catch. Satin chrome sash lifts. Satin chrome sash lock. Antique brass sash catch. Antique brass sash lifts. Antique brass sash lock. Oil rubbed bronze sash catch. Oil rubbed bronze sash lifts. Oil rubbed bronze sash lock. Satin nickel sash catch. Satin nickel sash lifts. Satin nickel sash lock. Aged brass sash catch. Aged brass sash lifts. Aged brass sash lock. Satin brass sash catch. Satin brass sash lifts. Satin brass sash lock. Light antique brass sash catch. Light antique brass sash lifts. Light antique brass sash lock. Other. Guidance for specification option: Alternatives available in various finishes from the likes of Croft, consult manufacturer for details. |
Operation | |
Type | Manual. Guidance for specification option: Counter balanced with spring balances. |
Colour | White (RAL 9003). Guidance for specification option: Standard. Colour from RAL classic range. Guidance for specification option: Insert requirement. Colour match. Guidance for specification option: Insert requirement. Dual finish. Guidance for specification option: Insert requirement. |
Frame section | 110 x 160 mm. Guidance for specification option: Liner x depth. |
Sash | 64 x 57 mm with 94 mm bottom rail and 43 mm midrail. 57 x 57 mm with 94 mm bottom rail and 43 mm midrail. Manufacturer guidanceSash section (top/ side rail x depth). |
Mullion sections | 78 mm. 98 mm. |
Sill section (height x depth) | 68 x 163 mm. 90 x 163 mm. |
Sill projection | 35 mm. 60 mm. 85 mm. 110 mm. 125 mm. |
Horns | Cill horns not required. Cill horns as drawing. |
Bead | Click fit removable parting bead. |
External liner moulding | Not required. Bead mould. Ovolo mould. Lambs tongue mould. |
Windowboard groove | Not required. Required. |
Internal Glazing Bars and/or Perimeter Bead | 18 mm Fine Lambs Tongue. 18 mm Ovolo. 18 mm Square. 22 mm Lambs Tongue. 22 mm Ovolo. |
External Glazing Bars | 18 mm chamfered putty bar. 22 mm chamfered putty bar. 28 mm chamfered putty bar. 6 mm ‘antiqued’ lead to internal and external faces of the outer pane. 9 mm ‘antiqued’ lead to internal and external faces of the outer pane. |
Perimeter/Integral spacer bar | Black warm edge perimeter spacer and integral glazing bars within unit cavity. Guidance for specification option: 24 and 24.8 glazing. White warm edge perimeter spacer and integral glazing bars within unit cavity. Guidance for specification option: 24 and 24.8 glazing. Black aluminium perimeter spacer. Guidance for specification option: 14 and 14.8 glazing. White aluminium perimeter spacer. Guidance for specification option: 14 and 14.8 glazing. |
Beading | Internal cassette beading. |
Child restrictor | Not required. Required. |
Weather seal (factory applied) | Schlegel Aquamac AQ109. |
Sustainability data
Country of product manufacture | United Kingdom |
Material | Wood Timber |
Recyclability | Manufacturer guidanceRefer to manufacturer website for product end of life instructions. |
BIM objects
NBS BIM Object Standard
This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.
Find out more about the NBS BIM Object Standard.
| Platform | Compatible | Version |
|---|---|---|
 IFC | IFC2X3 | 2 |
 Revit | Revit 2015 | 2 |
Literature
Site instruction, aftercare manual & warranty
Case studies
Barnet Brick House - New Build timber windows and doors
Arts & Craft, Buckinghamshire
Award winning Birmingham Steamhouse Renovation timber window project
Cheltenham Ladies’ College
Coastal property, South East England
Commercial renovation of historic building
Converted school, Bristol
Home refurbishment timber window and door project
Furnival House North London
Kent New build
KoHo Coffee, Buckinghamshire
Light fantastic to Essex newbuild
London Conservation and heritage listed building renovation
Nautical new build, North Norfolk
Poole, Dorset
Private development, Ipswich
Restored Georgian Estate
Surrey home rennovation
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