Corporate W20 Range

For The Future And The Past

The Corporate W20 windows and doors range offers great versatility. No other steel window system offers such an extensive range of sections, allowing the designer the opportunity to create many styles including elaborate composite windows.

An effective weatherstripping system, and the option of double glazing up to 14mm when gasket glazed, and 16mm wet glazed ensure excellent thermal insulation properties, and the system's large opening casements and slim frame make it particularly popular with conservationists and planners.

Range Features

• Offers flexibility in design via shaped windows and has the ability to form extensive composite windows.
• Glazing up to 16mm.
• Aesthetically delivers very slim sightlines thus maximising the glazing.
• Hot-dip galvanized.
• Factory-applied Duralife polyester powder coat finish.
• Integral EPDM weatherstripping.
• English Heritage Approved.
• Ideal for Replica Refurbishment.

Fittings Range

1. Standard hand operated folding opener.
2. Standard spring catch.
3. Standard peg stay.
4. Friction friction restricting stay.
5. Concealed bolt.
6. Standard side arm.

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).

Fire Resistance

One hour fire resistance integrity to BS 476: Part 22: 1987 can be achieved with specially prepared fixed lights and doors, constructed and glazed in conformity with the specification of a fire screen and door unit tested at Warrington Research Centre.

*A higher wind resistance can be achieved.

CAD Downloads

Click here to download CAD files for Corporate W20 Range products...