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Ovaltine Factory, Kings Langley, Hertfordshire

Steel Window Association member Monk Metal Windows were chosen by Costain as its specialist sub contractor to tackle the replica refurbishment of the listed main facade to the old Ovaltine factory at Kings Langley, Hertfordshire. The stunning art deco structure was being converted into apartments for Fairview New Homes, with Paul Johnson Architects being the design practice in charge of the project.

Although the painstaking replication of the original windows involved Monk in producing some 80 wide-span composite windows containing fixed and opening lights, formed of W20 sections, the most striking feature to the work involved reproducing the large circular pressed metal rings, representing the letter ‘O’ for Ovaltine, which are fixed to the frames at intervals across the elevation.

Roger Tugwood, the partner in charge for Paul Johnson Architects, recounts:

The conversion of the Ovaltine building involved the retention of the listed glazed facade where steel windows are a key feature. Monk Metal Windows performed well on the job and helped achieve the visual outcome we were seeking.

The units produced by Monk Metal Windows measure up to five metres by three metres tall were joined together on site with matching mullion sections. The horizontal pivot casements and fixed lights were all glazed with 4-6-4, soft coat insulating glass unit containing argon gas. All the frames were hot dip galvanized and finished in a RAL 8014 brown polyester coat.

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