They represent the ideal fusion of architectural tradition and modern engineering. Beloved for their vertical sliding operation, slender glazing bars, and timeless proportions, sash windows have graced residential buildings for centuries. SKATE's Aluminum sliding sash windows preserve every element of this classic aesthetic while replacing the maintenance-intensive timber construction with a precision-engineered aluminium system that will not warp, rot, swell, or require periodic repainting.
For heritage restoration projects, conservation area developments, or simply homeowners who appreciate classical window design, SKATE's aluminium sliding sash window offers an authentic appearance with modern thermal and acoustic performance.
How Aluminium Sliding Sash Windows Work
The sliding sash operates on a vertical track system using spring balances or stainless-steel spiral balances concealed within the slender aluminium frame. Both the upper and lower sashes can be raised or lowered independently, allowing flexible ventilation control. The top sash can be opened to exhaust warm air from the upper zone while the bottom sash admits cooler outside air - producing efficient natural cross-ventilation without mechanical systems. A tilt-in feature allows both sashes to swing inward for exterior glass cleaning from inside the building.
Technical Specifications
|
Profile Material |
6063-T5 Aluminium Alloy |
| Profile Wall Thickness |
1.2 mm / 1.4 mm / 1.5 mm / 1.6 mm |
| Profile Width |
50 mm – 83 mm |
| Thermal Break | PA66 GF25 Polyamide Strip |
| Glass Options | DGU / TGU · Low-E · Argon-filled |
| Glazing Thickness | 22 mm – 24 mm |
| Air Leakage | ≤ 0.3 cfm/ft² | Class 3 (EN 12207) |
| Water Tightness | E800 Pa (EN 12208) |
| Wind Load | ≥ 2000 Pa | Class C4 (EN 12210) |
| Sound Insulation (Rw) | Sound Insulation (Rw) |
| Available Materials | Aluminium / Vinyl / Alu-Clad Wood |
| Certifications | CE, NFRC, AS 2047 |
Glazing Bar Options
Authentic sash window aesthetics are achieved through the use of genuine structural glazing bars or superficial Georgian bar inserts placed between or within the glass unit. SKATE can produce true divided-light sashes with individual panes, or the more cost-effective single-pane sash with decorative bars - matched to your chosen configuration, from two-over-two to six-over-six and beyond.
Thermal Performance & Condensation Control
The PA66 GF25 thermal break strip within every SKATE aluminium sliding sash window profile dramatically reduces the cold surface temperatures that cause condensation on single or non-thermally-broken frames. Combined with warm-edge spacer bars and Low-E argon-filled glass, the thermal performance of our aluminium sliding sash windows rivals that of timber or uPVC alternatives, while maintaining the slimmer sightlines and greater structural strength that aluminium provides.
Finishes & Colours
A defining advantage of Aluminum sliding sash windows over their timber counterparts is the durability and breadth of available finishes. Choose from any RAL standard powder coat colour (including heritage shades such as Anthracite Grey RAL 7016, Jet Black RAL 9005, and Traffic White RAL 9016), anodised finishes, or realistic wood grain transfer printing including Golden Oak and Walnut. Dual-colour options - different inside and out - are available as standard.
Locking & Security
Cam locks at the meeting rail and optional sash bolts provide effective security for Aluminum sliding sash windows. Child safety restrictors and key-locking handles are available as accessories, limiting sash travel to a safe opening without restricting normal ventilation use.
Ideal Applications
SKATE aluminium sliding sash windows are the preferred choice for: Georgian, Victorian, and Edwardian period property renovations; conservation areas with restrictive planning requirements; townhouses, terrace homes, and apartment buildings with traditional facades; prestige new-build projects seeking heritage window aesthetics; and any project where low maintenance is a priority alongside authentic visual character.
Frequently Asked Questions
Q: Do aluminium sliding sash windows require painting?
A: No. The powder coat or anodised finish on Aluminum sliding sash windows requires only occasional cleaning with mild detergent. The colour will not fade, peel, or chip under normal conditions.
Q: Can SKATE match the sash dimensions of my existing windows for a replacement project?
A: Yes. SKATE manufactures Aluminum sliding sash windows to any specified dimension. We can work from site measurements, existing drawings, or photographs to ensure an accurate match.
Q: How do Aluminum sliding sash windows compare to uPVC sash windows?
A: Aluminium frames are significantly stronger, allowing slimmer sightlines and larger glazed areas. They are also more dimensionally stable, less prone to discolouration, and better suited to larger or heavier glass units than uPVC.
Why Choose SKATE
Since 1997, SKATE has delivered premium aluminium window systems to over 30 countries from our direct manufacturing facilities. Our aluminium sliding sash windows are produced without trading intermediaries, ensuring consistent factory quality, competitive pricing, and personalised technical support from concept through to installation.
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