Zyle Fenster
Zyle Vacuum Glazed Sash Window
A slim heritage sash using vacuum glazing to retain a single-glazed appearance while providing substantially improved thermal comfort.
What this system is designed to do
A slim heritage sash using vacuum glazing to retain a single-glazed appearance while providing substantially improved thermal comfort.
Where we would specify it
It is particularly valuable for listed and conservation projects where conventional double-glazed sightlines are unlikely to receive consent.
Features and performance
- Single-glazed visual character
- Slim sealed vacuum unit
- Traditional sash proportions
- External putty-glazed appearance
- Recyclable glazing without noble gases
- Conservation-focused detailing
Technical specifications
Colours and finishes
Colours and finishes
Any RAL colour, or a stain.
Three coats of water-based microporous paint or stain are applied in the factory, so the windows arrive ready to install.
Timber
- Material
- Engineered laminated pine, hardwood or Accoya
- Certification
- FSC or PEFC
Finish
- Finish
- Three-coat factory finish: water-based Teknos microporous paint or stain, inside and out
- System
- Teknos Aqua prime 1410, Aqua mid 2901, Aqua top 2600
- Colour
- A specified RAL colour, or a stain
- Guarantee
- 10 years on opaque finishes, 6 years on stains
Standard colours 26
Select colours to add them to your project enquiry.
Any RAL Classic colour
Every colour in the RAL Classic range can be specified.
Also available
- Wood stains A stain can be used instead of paint.
- Glazing beads Internally beaded, with an external rebate up-stand so the window reads as putty glazed. Supplied in white, grey or black.
Your selection
Colours on screen are a guide only, and pearl and metallic finishes cannot be shown. Add your choices to your project enquiry and we will go through them with you.
Add to project enquirySource: Zyle Fenster’s specification and FAQs for this system. Standard colour range and glazing bead colours: Zyle Fenster, September 2026.
FAQs
Common questions, answered.
The essentials on the Zyle Vacuum Glazed Sash Window: what it is, how it performs, the options, and where it fits best.
Still have a question?
Our team can talk you through the detail for your project.
What is Zyle Vacuum Glazed Sash Window?
A slim heritage sash using vacuum glazing to retain a single-glazed appearance while providing substantially improved thermal comfort.
How does Zyle Vacuum Glazed Sash Window perform?
Published whole-window Uw values are 1.2–1.1 W/m²K with acoustic performance up to Rw 34 dB and a 60-year anticipated service life with maintenance.
Which design and specification options are available?
Vacuum units from 8.3 to 12.3 mm can be combined with engineered pine, hardwood or Accoya, period ironmongery and factory-applied RAL paint or stain.
When would Eco Home Windows specify this system?
It is particularly valuable for listed and conservation projects where conventional double-glazed sightlines are unlikely to receive consent.
Downloads
Drawings and technical data.
10 files for this system, published by Zyle Fenster. Tell us who you are once and everything here opens for the rest of your visit.
Datasheets 1
Specification sheets and technical data
CAD drawings 1
DWG section details for drawing packages
Revit families 4
Parametric families for Revit models
IFC models 4
Open BIM geometry for any IFC-capable tool
Before you download
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