Berkeley Range
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Versatility In Replication And New Build
The Berkeley Window was originally created in order to replace existing 1920s and 1930s steel windows that were predominantly single pane leaded glass, exterior putty glazed. For the Berkeley window, Crittall developed an entirely new series of hot rolled sections where a solid steel chamfer replicates exterior putty glazing, whilst the interior glazing improves access for reglazing and security.
Berkeley offers an ideal solution for both replacement projects and new construction where minimum sightlines, maximum daylight, and fine detail are desired. The system is suitable for high-end residential, institutional and commercial applications.
Range Features

- High performance
- Unique articulated frame and sash
- Hot-dip galvanized
- Factory-applied Duralife polyester powder coat finish
- Double integral EPDM weatherstripping
- Glazing up to 18mm.
- Has a solid steel chamfer that replicates a putty glazing exterior.
- Ideal for traditional refurbishment projects.
- Registered design.
Fittings Range
- Sliding Stay
- Non Projecting Self Aligning Hinge
- Filigree Handle Plate - Two position night ventilation handle
Alternative hardware can be accommodated by all ranges - consult Crittall for details
Acoustic Properties
Sound insulation of weather stripped windows/doors (approximate values averaged over a frequencyrange of 100 to 3150Hz).
| Type of Glass | Sound Insulation (dB) |
|---|---|
| Single Glass | 20 - 28 |
| Double Glass | 28 - 30 |
| Secondary windows and cavity of 200mm | 35 - 40 |
| Type of opening light | Exposure Catagory (Pa) | Air Permeability: Not more than 16m3/h/m joint, at (Pa) | Water Tightness: No leakage, at (Pa) | Wind Resistance: No damage and only permissable deflection, at (Pa) |
|---|---|---|---|---|
| Side hung Open out | 2800 | 300 | 300 | 2800 |
| Top hung Open out | 2000 | 300 | 300 | 2000 |
| Side hung Open in | 1200 | 300 | 100 | 1200* |
| Bottom hung Open in | 1200 | 300 | 100 | 1200* |
* A higher wind resistance can be achieved
| Berkley range NBS (53 KB) | Click here to download |
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