Profile Design
- Modern flat-line design that enhances contemporary architectural aesthetics.
- Sash width: 75 mm .
- Frame width: 67 mm for straight profiles.
- Wider frame profiles: 78 mm .
WT75 / WT75 Plus Product Gallery
THERMAL WINDOW & DOOR SYSTEM
WT75 / WT75 Plus
The Benchmark of Thermal Performance. Refined Architectural Efficiency.
WT75 has become one of the most successful systems within the Fineastra product family and a preferred solution for contemporary architectural projects.
Combining a refined flat-line appearance with outstanding thermal insulation, WT75 provides the performance demanded by modern buildings while maintaining elegant proportions and extensive design flexibility. The system's shared components and optimized fabrication concept allow manufacturers to work efficiently while delivering premium-quality results.
Designed for demanding climates and ambitious architectural visions, WT75 offers an ideal balance between energy efficiency, durability, and timeless design.
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APPLICATION
Typical Applications
WT75 / WT75 Plus is engineered for contemporary architectural projects where thermal performance, elegant aesthetics, durability, and production efficiency are equally important.
- Premium residential developments
- Luxury villas
- High-end apartment buildings
- Commercial architectural projects
- Projects requiring superior thermal performance
- Buildings prioritizing long-term energy efficiency
SYSTEM OVERVIEW
WT75 Aluminium Thermal Window & Door System
The WT75 Aluminium Thermal Window & Door System represents a refined combination of thermal efficiency, durability, architectural flexibility, and contemporary design.
With its sleek flat-line aesthetic and advanced thermal insulation technology, WT75 offers an effective solution for modern residential and commercial architecture.
The system incorporates a 24 mm thermal strip and supports glazing configurations from 24 mm to 56 mm , providing flexibility for projects where thermal performance and architectural appearance are equally important.
WT75 and WT75 PLUS share accessories and system components, helping simplify production, logistics, inventory management, and installation while maintaining a consistent FINEASTRA architectural language.
TECHNICAL DATA
Technical Details
Profile dimensions, glazing capacity and thermal characteristics of the WT75 / WT75 Plus system.
| System | Frame | Sash | Max Glazing | Uf / Uw |
|---|---|---|---|---|
| WT75 Standard | W: 67–78 mm H: 48.4–114 mm | W: 67–78 mm H: 48.4–114 mm | 22 – 56 mm | Uf: 1.86 Uw: 0.87 |
| WT85 PLUS Enhanced | W: 67–78 mm H: 48.4–114 mm | W: 67–78 mm H: 48.4–114 mm | 22 – 56 mm | Uf: 1.86 Uw: 0.87 |
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Render
Architectural Context
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PERFORMANCE
Performance Characteristics
| Characteristic | Classification / Value | Standard |
|---|---|---|
| Air permeability | Up to class 3 | EN 1026 / EN 12207 |
| Watertightness | Up to class 6A | EN 1027 / EN 12208 |
| Resistance to wind load | Up to class C5 | EN 12211 / EN 12210 |
SYSTEM FEATURES
Key Features & Specifications
A refined aluminium thermal system designed around thermal efficiency, production simplicity, architectural flexibility, and long-term performance.
Wall Thickness
- WT75 is optimized for standard dimensions, providing an effective cost-performance balance.
- WT75 PLUS incorporates increased wall thickness.
- Designed for larger constructions requiring enhanced static performance and durability.
Thermal Performance
- Thermal strip: 24 mm .
- Designed to provide excellent thermal insulation for modern buildings.
- Achieves a thermal performance of up to Uw 0.87 W/m²K .
- Suitable for projects where energy efficiency and occupant comfort are important requirements.
Glass Compatibility
- Supports glazing configurations from 24 mm to 56 mm .
- Provides flexibility for advanced insulating glass solutions.
- Suitable for demanding residential and commercial architectural applications.
System Integration
- Shared glass holder profiles for both frames and sashes.
- Simplified production and logistics.
- Compatible accessories and profiles between WT75 and WT75 PLUS.
- Eurogroove and PVC sash options.
Material Versatility
- Powder coating available in any RAL colour .
- Anodized surface finishes.
- Woodgrain patterns for architectural customization.
Modular Compatibility
- Multi-system compatibility with other FINEASTRA systems, including WT68.
- Shared accessories and glass holder solutions.
- Common inner and outer gasket solutions across compatible systems.
- Modular architecture helps reduce inventory complexity.
Sealing Excellence
- Advanced EPDM gasket solutions.
- High-performance TPE gasket options.
- Designed for superior weatherproofing and long-term durability.
Production Efficiency
- Shared system components simplify manufacturing.
- Reduced component variety supports efficient inventory management.
- Modular architecture streamlines production and installation.
- Shared components help minimize storage requirements and improve production efficiency.
PERFORMANCE HIGHLIGHTS
Advanced Thermal Performance
WT75 combines excellent thermal insulation, glazing flexibility, production efficiency and architectural refinement in a versatile system developed for contemporary projects.
Advanced Thermal Insulation
WT75 incorporates a 24 mm thermal strip designed to provide excellent thermal insulation and energy efficiency for modern residential and commercial buildings.
Flexible Glazing Capacity
Glazing configurations from 24 mm to 56 mm provide flexibility for different high-performance glazing requirements and architectural applications.
Uw 0.87 W/m²K
WT75 achieves an impressive Uw value of up to 0.87 W/m²K , supporting improved thermal comfort and energy efficiency.
ARCHITECTURAL FREEDOM
Designed Around Your Architecture
WT75 provides the technical foundation for contemporary architectural envelopes while offering extensive surface and finish customization. Its refined flat-line appearance allows the system to integrate naturally into modern residential, commercial, and high-end architectural projects.
Powder Coating Any RAL colour
Anodizing Architectural surface finish
Woodgrain Natural architectural appearance
Advanced Glazing 24–56 mm
FINEASTRA WT75
The Benchmark of Thermal Performance
The WT75 Aluminium Thermal Window & Door System represents FINEASTRA's commitment to combining thermal efficiency, architectural refinement, production flexibility, and long-term durability. Designed for contemporary residential and commercial applications, WT75 delivers excellent thermal insulation while maintaining a sophisticated flat-line aesthetic.
With its 24 mm thermal strip , glazing capacity of up to 56 mm , flexible finishing options, modular components, and advanced EPDM and TPE sealing solutions, WT75 / WT75 PLUS provides an efficient and versatile platform for modern architectural projects.
