Conservation Historic Single Glazed Box Sash Window
QA Certificate
Certificate type
Conservation historic single glazed box sash window.
Historic vertical sliding sash windows with period sightlines and details, in module sizes or made to measure. The single glazed windows are designed for replacement of originals in existing buildings and listed where double glazing is not suitable.
The window is subject to planning approval as it will not meet current building regulations.
Finish | One coat spray applied primer |
Uniclass 2015 | |
CAWS | L10/10 Wood windows L10/210 Wood windows |
Product Reference | Conservation Historic Single Glazed Box Sash Window |
Timber | Engineered AccoyaRecommended for coastal areas. Engineered clear grade knot free Siberian Larch frame with Accoya sashes and internal/external liners and Hardwood Sapele SillAs standard. Engineered Hardwood Red Grandis |
Sill section (height x depth) | 68 x 143 mm90 x 143 mm |
Sill projection | 35 mm60 mm85 mm110 mm140 mm90 x 143 mm sill required. Flush |
Horns | Not requiredAs drawing |
Horns | Not requiredRequired |
Profile | Lambs tongueOvolo |
Glazing bars | 18 mm Gothic bar18 mm Georgian Ovolo18 mm Victorian Lambs tongue32 mm Georgian Ovolo40 mm Queen Anne Ovolo |
Glass | 4 mm Period style Victorian sheet glass4 mm Toughened single glass using traditional hand-faced putty |
Ironmongery | Brass sash catch, sash lifts, sash lock, sash pulleyCroft ironmongery with bespoke finishInsert requirement. Polished chrome sash catch, sash lifts, sash lock, sash pulleySatin chrome sash catch, sash lifts, sash lock, sash pulley |
Standard product features | Timber: Engineered clear grade knot free timber, all FSC certified. Chain of Custody can be specified. Frame section (liner width x depth): 95 x 140 mm. Sash section (width x depth): 44 x 44 mm with a 94 mm bottom rail and 35 mm midrail. Staff bead: Timber glued and pinned. Parting bead: Click fit removable parting bead. Finish: One coat spray applied primer. Weatherseal: Full standard with Sashglide® acoustic weatherpile. Glazing: 4 mm toughened single glazed using traditional hand-faced putty. Kitemark will be apparent on glass in accordance with Building Regulations. Operation: Pre stretched nylon cords with sash weights and heavy duty pulley wheels. |
Product Options | Type: Include specific frame dimensions, configuration and glazing bar designs with specification. Provide drawings if available. Feature windows: Shaped or curved on plan frames can be made to Mumford and Wood sections and details. |
- Timber FSC Certified
- ISO 9001
- ISO 14001
- British Woodworking Federation Member
- Timber Window Accreditation Scheme Approved Manufacturer
- Wood Window Alliance Founding Member
- CE Marked
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