Client: Ballymore/ J&C Architectural

Architect: Glenn Howells Architects

Sector: Education

Project Type: Design, supply and install



NACWL were employed to install the glazing scope to the new purpose built English National Ballet school. The scope included:

  • Steel curtain wall system – Jansen Viss 60
  • Ground floor curtain wall – Shcueco FWS 60+
  • Upper level Schueco FWS60+ screens containing AWS114 parallel opening bonded vents
  • Glazed rooflights – Schueco FWS60+ SG
  • Bespoke fabrcations such as Rainscreen panels with integrated perforated sections
  • Schueco  Glazed Doors


“I would like to thank the NACWL team for your performance on the façade works on the new home for the English National Ballet at London City Island.

You demonstrated an excellent attitude and level of technical knowledge, whilst maintaining a professional and cooperative way of working. As a team, you have overcome all obstacles, successfully designing, manufacturing and installing a bespoke solution that was completed to a high standard and has met all of the Client’s expectations.

Together, we have created a vibrant new building which will undoubtedly help to establish London City Island as one of the most exciting new destinations in London.

I would have no hesitation recommending your services to others.”

Mark Mannerson-Project Director-Ballymore:

NACWL Proposal

Weighing 800kg each, the 33 full height double glazed units on the ground floor were outside of Schueco’s cleat capacity. In a first for NACWL, we overcame this by utilising load-bearing ground-based props provided by Armatherm. Crucially, the design of the props prevents a cold bridge from being created, in turn ensuring that the thermal properties of the panes aren’t compromised.

To create a crisp, aesthetically pleasing appearance, each corner of the ground floor façade was required to be positioned glass-to-glass, i.e. without any visible framing on the vertical edge of the corner panes of glass. To achieve the desired result, we used Sika bonding to structurally bond the un-restrained vertical edges to concealed framing profiles.

Weighing 1 tonne each, the 22 full-height double glazed units on floors 1-3 were the largest we’ve ever worked with and required us to adapt our systems accordingly. Due to the relatively lightweight construction of the building’s concrete frame and slabs, the weight of the glass created a significant risk of racking within the steel curtain wall framing. Following structural calculations and elemental analysis, our solution saw us install steel shelves beneath each cill transom connection to provide additional support for the glass load as well as the positioning of packers at designed locations around the glass perimeter. The complex lifting operations were planned and executed successfully by our in house AP and lifting teams.


The building has gone onto win ‘The Social Impact Awards 2020’ and ‘AJ100 Building of the year 2020’

Get in touch