Images are for illustration purposes only.
Technical Specifications
| Thickness | Multiple options available — see product title |
| Standard / Certification | BS EN 1279 (Insulating Glass Units) |
| Maximum Area | Please contact us for maximum size guidance |
| Minimum Chargeable Area | 0.3m²— smaller panels are charged at this minimum |
| Lead Time | Confirmed in your order confirmation email |
| Edge Treatment | Sealed unit — no exposed edges |
| U-Value | 2.6 W/m²K (varies by spacer width — updates automatically above) |
| Guarantee | 10 years (aluminium / uPVC frames) · 5 years (timber frames) — see full terms |
| Finish | Clear / as specified — tinted options available on request |
Applications & Uses
Windows
doors
conservatories
commercial glazing
replacement sealed units
Not sure if this glass type suits your application? Call our team on 020 7206 2492 for free advice.
About This Product
4mm clear toughened / 4mm clear toughened — custom-made sealed double glazed unit manufactured to BS EN 1279. This unit features a toughened / toughened configuration, ideal for windows, doors, and conservatories.
Specifications
- Thickness: 4/gap/4mm
- Glass Type: Toughened / Toughened
- Standard: BS EN 1279
- Max Area: 2.5 m²
- U-Value: 1.4 W/m²K
- Sightline: 10-12mm
- Spacer: Aluminium / Warm Edge
- Gas Fill: Argon (std), Krypton, Xenon, Special gas
- Lead Time: Approx 7-10 working days
Typical Applications
- Windows
- doors
- conservatories
- commercial glazing
- replacement sealed units
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