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Velfac: Compliance without modification

Specifying a window walling system that already meets CWCT requirements means eliminating the risk of costly remedial work post-installation

In association with
Velfac: The only composite window manufacturer providing a CE mark for glazed window walling.
Velfac: The only composite window manufacturer providing a CE mark for glazed window walling. Credit: Craig Auckland, Fotohaus

Curtain walling and window screen specification can be complex, with proof often required to show that the end result can withstand the range of extreme conditions defined by the Centre for Window and Cladding Technology (CWCT).

The Velfac Window Walling system is already CWCT-compliant, eliminating any risk of expensive post-installation remedial work and meeting the stringent requirements of third-party insurers for residential projects.

Specify Velfac Window Walling for:

  • CWCT-compliance without design modification - thanks to the innovative Velfac frame and seal design.
  • Versatility. CWCT-compliant and standard Velfac units maintain identical sightlines, with window screens formed of coupled Velfac units also meeting CWCT requirements.
  • A CE mark for glazed window walling. Velfac is the only composite window manufacturer providing this mark, a legal requirement under BS EN 13830:2003.
  • Expert support from an in-house team. Velfac helps architects navigate building standards and compliance issues, saving time and budget across a build.

To see the Velfac system being tested by the CWCT, visit:

  • Benview Campus, Ruchill Park, Glasgow.
    Benview Campus, Ruchill Park, Glasgow. Credit: Keith Hunter
  • St Peter's Sixth Form Campus, Sunderland College.
    St Peter's Sixth Form Campus, Sunderland College.

For more information, up-to-date test results and technical support, visit



01223 897100



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