BSI Kitemark
Certificate type
QA Certificate
Certificate type
High performance traditional box sash windows.
High performance vertical sliding box sash windows with slim double glazing period sightlines and details.
Finish | Colour from RAL classic range Insert requirement. Colour match Insert requirement. Dual finish Insert requirement. Three coats of spray applied water based micro-porous white paint (RAL 9003) |
Uniclass 2015 | |
CAWS | L10/10 Wood windows L10/210 Wood windows |
Product Reference | Classic Box Sash Window |
Timber | Engineered AccoyaRecommended in coastal areas. Engineered clear grade knot free Siberian Larch frame and sashes with Accoya internal/external liners and midrail with hardwood Sapele sillAs standard. Engineered Hardwood Red Grandis |
Mullion section | Not required98 mmUp and over cord for triple sash only. 162 mm220 mm |
Sill section (h x d) | 68 x 163 mm90 x 163 mm |
Sill projection | 35 mm60 mm85 mm110 mm140 mm90 x 163 mm sill required. Flush |
Horns | Not requiredAs drawing |
External liner moulding | Not requiredBead mouldOvolo mould |
Horns | RequiredNot required |
Finish | Colour from RAL classic rangeInsert requirement. Colour matchInsert requirement. Dual finishInsert requirement. Three coats of spray applied water based micro-porous white paint (RAL 9003) |
Windowboard groove | Not requiredRequired |
Glazing bars and sash internal perimeter profile | 24 mm Lambs Tongue24 mm Ovolo |
Glass units and whole product U-values/ G-values | 14 mm Double glass unit comprising 4 mm Tough / 6 mm Krypton / 4 mm Tough Planitherm OneAs standard. Whole window U-value: 1.7 W/m²K / G-value: 0.52. 14.8 mm Sound Control Double glazed unit comprising 6.8 mm Sound Control Laminated/ 4 mm Argon/ 4 mm Tough Planitherm OneWhole window U-value: 2.0 W/m²K / G-value: 0.48. Whole window acoustic performance RW (C;Ctr) = 36db (-1;-4). |
Perimeter spacer bar | White aluminium14 mm glass units only. Silver/ black aluminium14mm & 14.8mm glass units. |
Ironmongery | Antique brassSash catch, sash lifts, sash lock, sash pulley. BrassSash catch, sash lifts, sash lock, sash pulley. Oil rubbed bronzeSash catch, sash lifts, sash lock, sash pulley. Polished chromeSash catch, sash lifts, sash lock, sash pulley. Satin chromeSash catch, sash lifts, sash lock, sash pulley. NickleSash catch, sash lifts, sash lock, sash pulley. Selected Croft ironmongery with bespoke finishInsert requirement. |
Trickle ventilation | Not requiredConcealed through frame head trickle ventilator (reduced EA)Trickle ventilator (4600 mm EA) - Surface mounted canopy |
Child restrictor | RequiredNot required |
Standard product features | Frame section: 110 x 160 mm (liner x depth). Sash section: 64 x 57 mm (top/ side rail x depth) with 94 mm bottom rail and 43 mm midrail. Timber: Engineered clear grade knot free timber, all FSC certified. Chain of Custody can be specified. Operation: Pre-stretched nylon cords with sash weights and heavy duty pulley wheels. Finish: Three coat spray applied factory finish using water based micro-porous paint/ stain. Weatherseal: Schlegel Aquamac AQ109 & Sashglide® acoustic weatherpile. Glazing: External putty glazed in accordance with Glass and Glazing Federation requirements. Performance:
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Product Options | Type: Include specific frame dimensions, configuration and glazing bar designs with specification. Provide drawings if available. Feature windows: Shaped frames can be made to Mumford & Wood sections and details. |
Classic Casement Window
Classic French Casement Window
Classic Spring Sash Window
Classic Tilt & Slide Spring Sash Window
Conservation Box Sash Window
Conservation Casement Window
Conservation French Casement Window
Conservation Historic Single Glazed Box Sash Window
Conservation Spring Sash Window
Conservation Tilt & Slide Spring Sash Window