Bi-fold window System

Space, uninterrupted. Where a wall once stood, a threshold now opens — panel folding into panel, glass stacking into glass, until the boundary between inside and out simply ceases to exist. Every fold is engineered with the same quiet precision: rollers that glide without sound, hinges set to a tolerance measured in fractions, profiles drawn as fine as the light will allow.

This is architecture that trusts restraint. A bi-fold system built not to be noticed, but to disappear — leaving only the view, the air, the room extending outward without interruption. Thermally broken, weather-sealed, and finished to endure, it is engineered for the spaces where openness is not a feature, but the entire point.

Panels stack cleanly to one side or split across both, folding away almost entirely from the opening. What remains is space without a frame around it — ventilation and outlook at their fullest expression.

Sightlines are drawn as narrow as engineering allows, so the aluminium recedes and the glass takes the eye. Precision replaces bulk at every join.

A multi-chamber profile, split by a glass-fibre reinforced polyamide thermal break, holds the line between inside and outside temperature — comfort maintained without compromise to form.

Heavy-duty stainless steel rollers and precision-set hinges carry every panel through its arc with quiet, effortless motion — engineered to feel weightless for decades of use.

Inward or outward opening, from two panels to eight, stacking single or double direction — the system is drawn to fit the architecture, not the other way round.

Compression seals, concealed drainage, and multi-point locking hold the line against air, water, and wind — so the openness never comes at the cost of protection.

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A system drawn to vanish — where the fold becomes invisible, and only the opening remains.
Specification Typical Range
System Type Thermally Broken Aluminium Bi-Fold Window System
Opening Style Inward or Outward Folding
Panel Configurations 2, 3, 4, 5, 6 or 8 Panels
Frame Depth 70–80 mm
Sash Depth 70–80 mm
Aluminium Alloy EN AW-6060 T66 / EN AW-6063 T6
Aluminium Thickness 2.0–3.0 mm
Thermal Break 34–42 mm Glass Fibre Reinforced Polyamide (PA66 GF25)
Maximum Panel Height Up to 3,000 mm
Maximum Panel Width Up to 1,200 mm per panel
Maximum Panel Weight Up to 120 kg per panel
Surface Finish Qualicoat Powder Coating, Anodised, Wood Effect Sublimation
Standard Colours RAL 7016, RAL 9005, RAL 9016, Bronze, Champagne, Custom RAL Colours
  1. Thickness: 24–44 mm
  2. Low-E Coating
  3. Argon Gas Filled
  4. Warm Edge Spacer
  1. Thickness: 44–60 mm
  2. Superior Thermal Performance
  3. Enhanced Acoustic Insulation
  1. Clear Glass
  2. Low-Iron Glass
  3. Laminated Safety Glass
  4. Toughened Safety Glass
  5. Solar Control Glass
  6. Reflective Glass
  7. Acoustic Glass
  8. Frosted Glass
  9. Decorative Glass
Performance Value
Whole Window U-Value (Uw) As low as 0.9 W/m²K
Glass U-Value (Ug) As low as 0.5 W/m²K
Thermal Break 34–42 mm Polyamide
Test Performance
Air Permeability EN 12207 – Class 4
Water Tightness EN 12208 – Up to E900
Wind Resistance EN 12210 – Up to Class C5
Acoustic Performance Up to 45 dB
Thermal Insulation EN ISO 10077 Compliant
Standard Description
EN 14351-1 Windows and External Pedestrian Doorsets
EN 12207 Air Permeability
EN 12208 Water Tightness
EN 12210 Wind Resistance
EN ISO 10077 Thermal Performance
EN 1191 Mechanical Durability
EN 13115 Mechanical Strength of Windows
EN 1279 Insulating Glass Units
EN 1096 Coated Glass
EN 12150 Toughened Safety Glass
EN 14449 Laminated Safety Glass
EN 356 Security Glazing

Security Features

  1. Multi-point locking system
  2. Concealed locking hardware
  3. Anti-lift protection
  4. Reinforced aluminium construction
  5. Laminated safety glazing compatibility
  6. Toughened safety glazing compatibility
  7. RC2 security configurations available

Hardware Options

  1. Heavy-Duty Stainless Steel Rollers
  2. Concealed Roller Assemblies
  3. Precision Folding Hinges
  4. Multi-Point Locking
  5. Flush Pull Handles
  6. Lockable Handles
  7. Magnetic Door Retainers
  8. Soft-Close Mechanism
  9. Bottom Rolling System
  10. Top-Hung Folding System (Project Specific)
  11. Smart Home Automation Compatibility

Available Configurations

  1. 2 Panel Bi-Fold
  2. 3 Panel Bi-Fold
  3. 4 Panel Bi-Fold
  4. 5 Panel Bi-Fold
  5. 6 Panel Bi-Fold
  6. 8 Panel Bi-Fold
  7. Centre Opening Configuration
  8. Single Direction Stacking
  9. Double Direction Stacking
  10. Corner Opening System
  11. Fixed + Folding Combination
  12. Floor-to-Ceiling Window Systems

Finishes

  1. Matte Powder Coating
  2. Fine Texture Powder Coating
  3. Metallic Powder Coating
  4. Anodised Aluminium
  5. Wood Grain Sublimation
  6. Dual Colour Finish
  7. Custom RAL Colours
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