Weighted Vertical Sliding Sash Window
Verified by manufacturer 8 days ago
Timber sliding sash windows.
Application
For residential and commercial applications.
Description
Vertical Sliding Sash Window – Traditional Design with Timeless Functionality
Our vertical sliding sash window is a classic design, hung on cords and counterbalanced with weights discreetly housed within a traditional sash box frame. Crafted to reflect authentic period detailing, this window is ideally suited to heritage properties, conservation areas, or any project requiring traditional aesthetics with modern performance.
Typically fitted into a check reveal, much of the weight box is concealed within the surrounding structure, preserving the clean, elegant sightlines of the original architectural design.
Combining functionality, charm, and craftsmanship, this sash window provides smooth operation, long-lasting durability, and authentic style — the ideal choice for both restoration and high-quality new builds.
General information
Color | Beige Clear Black Blue Copper |
Finish | Painted |
Material | Timber Wood |
Shape | Rectangle Square |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Ten year |
Uniclass | |
CAWS | L10/210 Wood windows L10/10 Wood windows |
Specification data - Wood window units
Classification data | |
Third-party certification | BRE. |
Dimensions and configurations | Manufacturer guidanceInsert requirements or refer to a drawing or schedule. |
Product performance | |
Fire performance | |
Fire egress | Not required. Required. Manufacturer guidanceSubject to size of bottom sash. |
Weather performance | |
Air permeability | To BS EN 1026:2016, Class 4. |
Watertightness | To BS EN 1027:2000, Class 7A. |
Resistance to wind load | To BS EN 12211:2016, Class A5. |
Safety | |
Security level | Up to LPS 1175, SR2. Guidance for specification option: Subject to glass and hardware. |
Environmental | |
Acoustic performance rating | Up to 46 dB Rw. Guidance for specification option: Subject to glass specification. |
Thermal | |
Whole window U-value | 1.4 W/m2K or better. Guidance for specification option: Subject to glass specification. |
Frame | |
Wood species | European redwood. Engineered European redwood. Sapele hardwood. Engineered sapele hardwood. Accoya. Douglas fir. Oak. |
Chain of custody | FSC. |
Finish as delivered | Supplied primed with micro-porous paint ready for hand painting on site for traditional finish. Three coat spray-applied factory finish using water-based micro-porous paint. |
Preservative treatment to wood components | Triple action wood treatment. Guidance for specification option: Low odour solution based on micro-fine active technology with active fungacides, algaecides and Permethrin to actively kill and protect against wood rot, decay, fungi and wood-boring insects. |
Ventilator | Hidden trickle vents to head of box frame. Trickle vents fitted directly through sash. Guidance for specification option: Either top or bottom rails, subject to size. |
Frame horns | Sash horns not required. Sash horns required to both sashes. Sash horns required to top sash only. |
Glazing or infill | |
Requirements | 20 mm Double glass unit comprising 4 mm tough/ 12 mm argon/ 4 mm tough low e 1.2. 20 mm Double glass unit comprising 4 mm tough/ 12 mm argon/ 4 mm tough low e 1.0. 22 mm Double glass unit comprising 4 mm tough/ 14 mm argon/ 4 mm tough low e 1.2. 22 mm Double glass unit comprising 4 mm tough/ 14 mm argon/ 4 mm tough low e 1.0. 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 Double glass unit comprising 6.8 mm sound control/ 14 mm argon/ 4 mm tough low e 1.0. 26.8 mm Double glass unit comprising 6.8 mm sound control/ 14 mm argon/ 6 mm tough low e 1.0. 12 mm Double glass unit comprising 4 mm tough/ 6 mm krypton/ 4 mm tough 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 6.4 safety laminate. Single glass 6.8 mm sound control laminate. Single glass 8.8 mm sound control laminate. Single glass 3–4 mm restoration glass. Manufacturer guidanceNote: toughened glass where requested or required. |
Hardware | Polished brass sash catch, sash lifts, restrictor and sash pulley. Polished chrome sash catch, sash lifts, restrictor and sash pulley. Satin chrome sash catch, sash lifts, restrictor and sash pulley. Antique brass sash catch, sash lifts, restrictor and sash pulley. |
Operation | |
Type | Manual. |
Sustainability data
Material | Timber Wood |