Jesus College, University of Cambridge

Secondary glazing for Cambridge college buildings from every era

Jesus College Cambridge

Having previously worked on a succession of projects at the historic Grade II Listed Jesus College buildings, the College’s request has remained to sensitively refurbish the primary windows in keeping with their original features.   The previous improvements to the College’s Chapel Court, as well as the West Court Lecture Theatre and student’s accommodation, were carried out to address the thermal integrity of the draughty openings. In addition, the treated rooms benefited from a reduction in noise ingress leading to a far more peaceful environment, with little or no distractions from the outside.  With the most recent project, we have covered more of the spacious college grounds and focused our efforts on the Master’s Lodges, Professors’ and Fellows’ rooms which are situated in the First Court and South Gate Tower. The long-paved path known as ‘The Chimney’ leading to Jesus Lane from the S. Gate Tower, was Listed Grade II in 1950 along with the First Court. 

Creating warm and peaceful rooms with discreet solutions 

The traditional windows within the Grade II Listed buildings are made up of bronze cast iron frames fabricated into decorated stone wall openings.   When it comes to secondary glazing and heritage buildings, our slim profile systems, accompanied with neat handles, will sympathetically treat the primary windows whilst improving their thermal performance.  Jesus College’s First Court comprises of gothic style casement windows within curved stone heads, some included splayed wall openings. The solution here was to fit slimline side hung double casements (Series 45) which are bespoke and made to fit the curvature of the eyebrow or curved head. Some curved windows were within squared stone reveals which were best suited with our 2-pane horizontal sliders (Series 10).  To help improve the thermal integrity of the primary windows, a treatment of 4mm toughened low e high performance glass helped deliver the optimal results.    This year’s installations were focused on the room occupants and the stairwells of the First Court. Four staircases have been treated with secondary glazing to give a much needed warmer and quieter academic spaces. 

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