Profile Design
- Sleek flat-line design for refined architectural aesthetics.
- Sash width: 85 mm.
- Frame width: 77 mm for straight profiles.
- Wider frame profiles: 88 mm.
WT85 / WT85 Plus Product Gallery
THERMAL WINDOW & DOOR SYSTEM
WT85 / WT85 Plus
Maximum Thermal Efficiency. Premium Architectural Performance.
Developed for projects where thermal insulation is a primary requirement, WT85 represents the highest level of performance within the Fineastra thermal window and door family.
Its increased profile depth allows the use of larger glazing configurations while delivering exceptional energy efficiency, structural stability, and occupant comfort. Combined with Fineastra's modern flat-line design language, WT85 offers architects and investors a solution capable of meeting the most demanding project specifications without compromising aesthetics.
From luxury residential developments to large-scale commercial projects, WT85 is engineered to perform at the highest level.
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APPLICATION
Typical Applications
WT85 / WT85 Plus is engineered for architectural projects where thermal efficiency, structural performance and refined aesthetics are equally important.
- Luxury residential developments
- Prestige commercial buildings
- Landmark architectural projects
- Energy-efficient building envelopes
- Projects demanding maximum thermal efficiency
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Render
Architectural Context
SYSTEM OVERVIEW
WT85 Aluminium Thermal Window & Door System
The WT85 Aluminium Thermal Window & Door System builds on the proven performance of Fineastra WT systems, incorporating an expanded thermal strip to achieve exceptional thermal efficiency.
Designed to meet demanding energy-efficiency requirements, WT85 provides a sophisticated solution for private residences, premium developments and specialized architectural projects where thermal performance is a primary consideration.
The system combines a sleek flat-line appearance with advanced thermal insulation, glazing flexibility and modular production advantages.
TECHNICAL DATA
Technical Details
Profile dimensions, glazing capacity and thermal characteristics of the WT85 / WT85 Plus system.
| System | Frame | Sash | Max Glazing | Uf / Uw |
|---|---|---|---|---|
| WT85 Standard | W: 77–88 mm H: 48.4–114 mm | W: 77–88 mm H: 48.4–114 mm | 32–67 mm | Uf: 1.70 Uw: 0.92 |
| WT85 PLUS Enhanced | W: 77–88 mm H: 48.4–114 mm | W: 77–88 mm H: 48.4–114 mm | 32–67 mm | Uf: 1.70 Uw: 0.92 |
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PERFORMANCE
Performance Characteristics
| Characteristic | Classification / Value | Standard |
|---|---|---|
| Air permeability | Up to class 2 | EN 1026 / EN 12207 |
| Watertightness | Up to class 2A | EN 1027 / EN 12208 |
| Resistance to wind load | Up to class C4 | EN 12211 / EN 12210 |
SYSTEM FEATURES
Key Features & Specifications
A modular aluminium system designed around thermal efficiency, production simplicity and architectural flexibility.
Wall Thickness
- WT85 provides an optimized balance between standard dimensions and cost-performance.
- WT85 PLUS incorporates increased wall thickness.
- Designed for larger constructions requiring enhanced static performance.
Thermal Performance
- Expanded thermal strip of 34 mm.
- Significantly increased insulation compared with the 24 mm strip used in WT75.
- Designed for projects where energy efficiency is a primary requirement.
Glass Compatibility
- Accommodates glazing configurations up to 67 mm.
- Suitable for advanced high-performance glazing solutions.
- Increased glazing flexibility for demanding architectural applications.
System Integration
- Shared glass holder profiles for frames and sashes.
- Simplified production and logistics.
- Compatible accessories and profiles between WT85 and WT85 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
- Compatible with other Fineastra systems including WT75 and WT68.
- Shared accessories and glass holder solutions.
- Common inner and outer gasket solutions.
- Reduced storage requirements.
Sealing Excellence
- Advanced EPDM gasket solutions.
- High-performance TPE gasket options.
- Enhanced weather resistance and long-term durability.
Production Efficiency
- Shared system components simplify manufacturing.
- Reduced component variety supports efficient inventory management.
- Modular architecture helps streamline production and installation.
PERFORMANCE HIGHLIGHTS
Engineered for Maximum Efficiency
WT85 combines thermal performance, glazing flexibility and architectural refinement in a system developed for demanding projects.
Unmatched Thermal Efficiency
The wider 34 mm thermal strip enables WT85 to achieve the highest thermal performance within the Fineastra WT system family, making it particularly suitable for projects prioritizing sustainability and energy savings.
Enhanced Glass Capacity
Glazing configurations up to 67 mm provide exceptional flexibility for advanced insulated glass solutions and high-performance architectural envelopes.
ARCHITECTURAL FREEDOM
Designed Around Your Architecture
WT85 provides the technical foundation for contemporary architectural envelopes while allowing extensive surface and finish customization.
Powder Coating Any RAL colour
Anodizing Architectural surface finish
Woodgrain Natural architectural appearance
Advanced Glazing Up to 67 mm
FINEASTRA WT85
Performance Without Architectural Compromise
The WT85 Aluminium Thermal Window & Door System epitomizes Fineastra's dedication to innovative and efficient architectural solutions. Developed for residential and specialized applications, WT85 combines outstanding thermal insulation, durability, glazing flexibility and a sophisticated flat-line aesthetic.
For projects where thermal performance is not simply a specification but a defining requirement, WT85 / WT85 PLUS provides an advanced system platform engineered for modern, energy-efficient architecture.