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A London based member of the Steel Window Association has been involved in a steel window replacement contract for a theatre in the city’s East End, which has not only helped maintain the authenticity of the building’s architecture, but also significantly reduced energy loss through the openings.

The contract for the Arcola Theatre in Ashwin Street, Dalston, was carried out direct by Govette Windows, with the company producing a total of 50 replacements some of which measured up to two metres wide by 5.1 metres high.

While half a dozen of these tall composites feature on the theatre’s staircases, the rest of the new windows are located on the ground and first floors to all elevations and measure 1200mm wide by 1900 mm high. All were produced using W20 sections, finished in a RAL 6005 matt green polyester powder coating, while the soft coat, low-E inner leaf and Krypton gas filling to the 16 mm IG units achieves a centre pane U-value of 1.1 W/m2K: in line with current Building Regulations. Opening lights are mainly vertical pivots.

Executive Director of Arcola Theatre, Dr Ben Todd recounts: “We have been involved in a major, £1 million refurbishment project for the theatre, which while it is not on the listed-building register , is considered locally listed. The work has included excavating the basement to create additional space, electrical work and a new heating system, as well as replacing all of our windows.

“The original steel windows around the elevations were of the Crittall ‘Small Pane’ type which are too expensive to reproduce today and so we opted for the W20 option from Govette Windows which suit the elevations and are far more sympathetic to the style of the property than the aluminium units which were installed on upper floors years ago.”

The project has been fully funded by Arts Council grant while the architectural design, construction engineering and project management were undertaken by Cragg Management.