Timber Curtain Walling Engineered for High-Performance Building Facades

Zyle Fenster's timber curtain walling system combines the natural warmth and sustainability of engineered timber with the durability and weather resistance of aluminium cladding. Designed for seamless integration with windows and doors, and available in multiple timber species with any RAL colour for external aluminium cladding, this system offers a bespoke configuration for every project – from private self-builds to architect-designed residential projects across the UK.

Reynaers CW50 timber curtain walls

U-Value as low as 0.63 W/m²K – Passivhaus compliant

Available in multiple timber species and RAL finishes

Seamless integration with windows, doors, and sliding systems

FSC-certified timber – sustainability built in

Timber Curtain Walling – Technical Specifications

Full product guidance and specification data for Zyle Fenster's timber curtain walling system, as standard configuration.

Product guidance – as standard
Face width50 mm, 60 mm and 80 mm.
Glass thicknessFrom 9 mm to 64 mm.
Water tightnessRE1200.
Air permeabilityAE.
Wind load1500Pa / 2250Pa.
Thermal Insulation0.63W/m²K using Ug value: 0,5 W/m²K | Glass spacer: Swiss spacer Ultimate
Product specification
MaterialEngineered redwood - Standard. Engineered hardwood, European oak.
Glazing48mm Triple glazed, 4/18/4/18/4 Low-E - as standard.
External finishPolyester powder coating - as standard. Timber capping available.
Perimeter spacer barsWhite warm edge perimeter spacer- as standard. Silver and black spacer optional.
Internal finishThree coat spray applied factory finish using water-based Teknos micro-porous paint/stain.

Timber Curtain Walling – Technical Downloads

Download full specification sheets and technical data for Zyle Fenster's timber curtain walling system for use in your project documentation.

Key Benefits of Timber Curtain Walling for Residential Projects

Timber is a material with low thermal conductivity, making it a naturally excellent choice as a core structural element in high-performance curtain walling systems. Combined with a concealed aluminium cladding system externally, this wood-aluminium composite construction delivers the durability and weather resistance of aluminium alongside the warmth, sustainability, and excellent thermal performance of natural timber.

Our timber curtain walling system achieves a U-value as low as 0.63 W/m²K – meeting and exceeding the requirements of the Passivhaus standard. The slim frames prioritise glazing area, allowing maximum natural light into the building while reducing heat loss across the facade. The result is a curtain wall system that actively contributes to energy efficiency, reduced heating demand, and improved building performance ratings across UK residential projects.

Reynaers CW50 timber curtain walls
Reynaers CW50 timber curtain walls

Bespoke Timber Curtain Wall Designs for Every Project

Available in engineered redwood as standard – with engineered hardwood and European oak as additional options – our timber curtain walling system can be specified with any RAL colour for the external aluminium cladding, and finished internally using a factory-applied, three-coat water-based Teknos microporous paint or stain system. This level of configuration flexibility makes it an excellent choice for architect-led and self-build projects where material quality and aesthetic precision matter.

Any combination of tilt and turn windows, casement windows, entrance doors, and sliding doors can be integrated seamlessly into the curtain walling system – maintaining consistent sightlines and facade continuity. Our specialist curtain walling team provides full technical support throughout specification, supply, and installation, ensuring every timber curtain wall system we deliver performs as designed for the lifetime of the building.

Frequently Asked Questions

Find answers to the most common questions about our timber curtain walling systems. For project-specific technical queries, our team is available to support from first enquiry through to completion.

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What our customers say

Quote

Zyle supplied Passive House windows for our new build, and the system met all project expectations. Airtightness and overall performance were delivered as specified, and their technical coordination on site was reliable and detail focused.

Private Owner

Mark Reynolds, Bristol

Quote

Our vacuum glazed sash windows provide an excellent balance between heritage sensitivity and modern performance. The slim glazing preserves the character of the property while significantly improving overall comfort. Installation was precise and professionally managed.

Private owner

Laura Mitchell, Southampton

Quote

The Passive House windows performed exactly as required within our project specification. Installation detailing, sealing, and overall execution were handled correctly, ensuring a high standard of delivery. A technically competent and reliable supplier.

Private Owner

Andrew Collins, Cambridge

Quote

We selected aluminum windows for their contemporary aesthetic and low maintenance. The proportions are well considered, and the finish quality is consistent throughout. Installation was efficient and carried out with strong attention to detail.

Private Owner

Rachel Adams, Reading

Quote

The triple glazed sash windows integrate seamlessly into the existing façade while offering a clear upgrade in comfort. Craftsmanship is evident in both joinery and installation, and the improvement in acoustic insulation is immediately noticeable.

Private Owner

Thomas Green, Nottingham

Quote

The Alu-Clad windows and doors introduced a strong architectural presence while maintaining a refined internal finish. Detailing, material quality, and consistency across the project are of a high standard. The process was structured and dependable from start to finish.

Private Owner

Olivia Bennett, Oxford

Talk to Our Team

Whether you are an architect specifying for a new project, a self-builder planning your custom home, or a developer working to a programme, our team is here to help. Get in touch for technical advice, product information, or to request a quote.

  • 124 City Road
  • London
  • United Kingdom
  • EC1V 2NX

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