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Timber Sliding Sash Windows
Verified 5 days ago
George Barnsdale
S1 Box Sliding Sash Timber Window (Traditional)
Timber Sliding Sash Windows
Verified 5 days ago
George Barnsdale
Select variant..
Timber Sliding Sash Windows
Verified 5 days ago
George Barnsdale
Select variant..
Summary
Timber sliding sash windows.
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Product certifications
PAS 24
Enhanced Security Windows
Secured By Design
Secured by Design
UKAS
General Performance Windows: BS 644: 2012
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Color
Other
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Finish
Painted, Stained
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Material
Timber, Glass, Wood
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Shape
Square, Rectangle, Other
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Length
Bespoke
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Width
Bespoke
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Height
Bespoke
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Warranty description
Ten year, Other
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SKU Code
S1
S1
S1
GTIN/EAN
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Specification
Standard
To BS 644.
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Dimensions and configurations
Box sash - traditional.
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Product performance
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Weather performance
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UK exposure category
To BS 6375-1, 2000 Pa.
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Air permeability
To BS EN 12207, Class 4.
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Watertightness
To BS EN 12210, Class C5.
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Resistance to wind load
To BS EN 12208, Class 7A.
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Durability
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Operation and strength characteristics
To BS 6375-2.
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Safety
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Security level
Not required., To Secured by Design standard/ PAS 24.
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Environmental
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Acoustic performance rating
30–42 dB.
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Thermal
-
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Whole window U-value
0.9–1.4 W/m2K.
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British Fenestration Rating Council Window Energy Rating
B/ A+.
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Frame
-
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Standard
To BS EN 942.
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Profile
Type A., Type B., Type C., Type D., Type E., Type F., Type G., Other.
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Wood species
Engineered redwood., Engineered grandis., European oak., Accoya.
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Chain of custody
FSC.
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Appearance class
J40.
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Finish as delivered
George Barnsdale paint system.
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Ventilator
Not required., Trickle ventilator.
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Frame horns
Not required., Top., Top and bottom.
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Glazing or infill
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Requirements
Factory glazed, traditional drained and ventilated.
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Hardware
Cord, weight and pulley system.
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Operation
-
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Type
Manual.
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Fixing features
Manufacturer's standard.
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Additional properties
Design
Square bay., Angled bay., Bow., Bay - arched top., Bay - internal arch., Bay - arch fillet.
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Opening
Sliding., Fixed.
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Handles
Not required., Sash eye., D-handle.
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Locking
Locking fasteners.
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Glazing bead
Manufacturer's standard.
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Light transmission
81% (as standard).
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Accessories
Not required., Draught strip., Sash stops., Cill extension., Window board groove., Glazing bars.
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Sustainability data
Country of product manufacture
United Kingdom
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Manufacturing plant location
High St, Donington, Spalding PE11 4TA, UK
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Material
Timber, Glass, Wood
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© 2025 Hubexo North UK Ltd. All rights reserved.
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