Carlyle Infant School

The newly built Carlyle Infant School in Littleover Derby was the first completed project in the UK to feature Senior Architectural Systems’ innovative PURe® aluminium casement windows.

Specified by Bond Bryan architects, PURe® windows were chosen for their remarkable thermal efficiency and their potential to dramatically improve the building’s overall carbon calculations. The aim was to achieve an overall U value of 1.1W/m2K.

This was easily achieved with the PURe® aluminium windows fabricated and installed by Allied Glazing, because PURe® windows are able to achieve U-values as low as 0.71W/m2K, when calculated as a commercial CEN standard window. These exceptionally low U values are thanks to the innovative use of expanded polyurethane to form an enhanced thermal barrier, with superior thermal efficiency compared to the more traditional polyamide thermal barrier.

The technically advanced construction of PURe® windows means they are exceptionally easy to fabricate. Commenting on the project, Carl Broadhurst, Managing Director at Allied Glazing said “We are extremely impressed with the PURe® window system, particularly as it combines ease of fabrication with a technically advanced construction and exceptional thermal performance… and we are looking forward to working with the new PURe® system on future contracts.”

With a life expectancy in excess of 40 years and a generic Green Guide rating of ‘A’ for use in commercial projects, PURe® windows can easily exceed the current requirements of Part L of the Building Regulations and will provide a modern and inspirational learning environment for the 180 pupils at Carlyle Infant Schools for years to come.

Carlyle Infant School is one of 15 new schools rebuilt under the EFA’s Priority School Building Programme. The contract for the 15 schools worth around £60 Million was awarded to main contractor Bowmer and Kirkland.




Littleover, Derbyshire


Bond Bryan

Main Contractor:

Bowmer & Kirkland


Allied Glazing

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