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Aluminium Windows

Passivhaus Windows

Passivhaus windows are ultra-efficient glazing systems with U-values often below 0.8 W/m²K. They deliver superior insulation, airtightness, and comfort while reducing energy use to meet rigorous Passivhaus standards.

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COR 80 Industrial Passivhaus TB

COR 80 Industrial Passivhaus TB windows by Cortizo are designed for projects where energy efficiency, airtightness, and design excellence are non-negotiable. Certified under the prestigious Passivhaus standard, this advanced system delivers outstanding thermal insulation and airtightness, making it ideal for low-energy homes, high-performance builds, and environmentally conscious developments. The industrial-style aesthetics—with slim sightlines and clean, square-edge profiles—offer a sleek, architectural finish without compromising on performance.

Manufactured in-house by Direct Trade Windows, these windows combine Cortizo’s high-spec aluminium profile with our technical know-how and quality assurance. With U-values as low as 0.66 W/m²K, triple-glazing capability, and reinforced weather resistance, the COR 80 Passivhaus TB system is engineered for maximum efficiency. Suitable for modern residential builds or commercial projects targeting energy certifications, these windows deliver exceptional results with enduring style.

Key Features:

  • Passivhaus certified: Meets the highest standard for thermal efficiency and airtightness
  • U-value as low as 0.66 W/m²K: Exceptional energy-saving performance
  • Industrial-style finish: Square profiles with slim, clean sightlines
  • Triple-glazing ready: Supports up to 65 mm glazing for optimal insulation and acoustic control
  • Weather resistant: Engineered to exceed standards in air, water, and wind performance
  • Built in-house: Expertly fabricated for precise fit, short lead times, and total quality control
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Skylight window offering natural light and scenic views of trees and mountains.

Technical Specifications

Technical Specifications

  • Window frame installation depth: 80 mm
  • Glazing thickness: up to 65 mm
  • 3-chamber construction with 3 gaskets
  • Profile thickness: 1.6 mm
  • Polyamide strip length: 45 mm
  • Possibility of dual colour systems
  • Colour powder coating (RAL, mottled and rough)
  • Wood effect/ Anti-bacterial powder coating
  • Maximum sash weight: 160 kg
  • Maximum sash dimensions: Width (L) 1,00 mm, Height (H) 2,600mm

Glass Options

All our Passivhaus windows are available with a choice of high-performance glazing to suit your project requirements:

  • Double-glazed sealed units — standard specification for thermal efficiency
  • Triple-glazed units — enhanced thermal and acoustic performance
  • Acoustic laminated glass — for noise reduction in urban and roadside locations
  • Solar control glass — reduces heat gain and glare while maintaining natural light

We specify the optimal glass configuration for each project based on thermal performance, acoustic requirements and Building Regulations compliance.

Colours & Finishes

Colours & Finishes

All our Passivhaus windows are powder coated using a Qualicoat-certified process and are available in the full RAL colour palette — over 200 standard colours plus bespoke colour matching for heritage and commercial projects.

Standard Colour Options

  • Anthracite Grey (RAL 7016) — the most specified colour across contemporary residential and commercial projects
  • Jet Black (RAL 9005) — a bold, architectural choice for steel-look and modern schemes
  • Pure White (RAL 9010) — clean, minimal finish for contemporary interiors and white render elevations
  • Traffic White (RAL 9016) — brighter white commonly specified for traditional and period properties
  • Cream (RAL 9001) — warm off-white suited to stone, brick, and heritage contexts
  • Signal Grey (RAL 7004) — a softer grey alternative to Anthracite for urban and coastal projects

Dual Colour Finishes

A different colour can be applied to the internal and external faces of any frame — allowing the exterior to meet planning requirements or match the building's facade while the interior colour coordinates with the internal design scheme.

Dual-colour finishes are a popular choice for windows — anthracite grey or black externally with a clean white internal finish to match your interior.

Anodised Finishes

Anodised aluminium provides a harder, more scratch-resistant surface than powder coat and is available in natural silver, bronze, champagne, and dark grey anodised finishes — commonly specified for commercial projects, high-traffic environments, and where a metallic appearance is required.

Bespoke Colour Matching

RAL and NCS colour matching is available for projects requiring an exact match to an existing material, manufacturer specification, or architect's colour schedule. Samples are available on request prior to order.

Passivhaus Windows – Your Questions Answered

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What makes the COR 80 Industrial Passivhaus TB so thermally efficient?

The COR 80 Industrial Passivhaus TB achieves exceptional thermal insulation thanks to special foams within the frame and sash. This innovative design reduces heat loss from the building interior, resulting in a U- value as low as 0.66 W/m²K.

Is the COR 80 Industrial Passivhaus TB certified for Passivhaus projects?

Yes, the COR 80 Industrial Passivhaus TB system is compliant with Passivhaus standards for warm-temperate climates. This makes it an ideal choice for energy-efficient construction projects seeking Passivhaus certification.

What are the benefits of installing the COR 80 Industrial Passivhaus TB system?

The primary benefit is significant energy savings for building owners due to the system's superior thermal insulation. Additionally, it offers design flexibility with various configurations to suit project requirements and boasts durable construction to withstand demanding weather conditions.

Are there any size limitations for the COR 80 Industrial Passivhaus TB windows?

The COR 80 Industrial Passivhaus TB system caters to a wide range of applications. The maximum sash weight is 160 kg, and maximum dimensions can reach 1,000 mm width and 2,600 mm height.

Can I customise the appearance of the COR 80 Industrial Passivhaus TB windows?

Yes, the system offers a high degree of customisation. You can choose from dual-colour options, powder coating in various RAL colours or with a mottled or rough texture, wood effect finishes, and even antibacterial powder coating for added hygiene.

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Cortizo logo FENSA logo BFRC logo Accreditation logo for Direct Trade Windows company. Constructionline Gold Member badge for trusted building industry standards. Close-up of a window with a focus on the frame and glass. Aluminium window with sleek design and modern finish.