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Stoner Building – Leeds University

Nov 28, 2018 | Architects & Commercial, Education, Heritage & Listed Buildings, Universities |

As part of our ongoing partnership and the continuous development, we have completed another project for Leeds University to decrease heat loss.

The Stoner Building was designed and built in the 1960s by Chamberlin Powell. The building is Grade II listed and demonstrates practical uses of concrete and continuous lines of glazing.

Specified to decrease heat loss and reduce energy consumption we advised the installation of 6mm Low E-glass. This glass has a microscopically thin, transparent coating that reflects heat into the room. Low-E glass substantially reduces heat loss and decreases the buildings carbon footprint.

What is Low-E Glass

Low-E (Low Emissivity) coatings have been specifically developed to reduce the amount of ultraviolet and infrared light that passes through the glass. This coating does not compromise the amount of light that is transmitted through the glass. As the long wave energy or heat tries to escape outwards towards the colder environment; the Low-E coating reflects the heat back into the room. This will substantially decrease heat loss and reduce energy consumption.

U-values are a measure of how capable a material is as an insulator, and a lower U-value indicates that the material is an excellent thermal insulator. Studies have shown that a single glazed timber window has a U-value of 4.7 W/m2k. Granada’s secondary glazing with 6mm toughened glass, and Low-E coating can achieve a U-value of 1.868 W/m2k. As acoustic and thermal specialists we often recommend products and glass types that offer optimum thermal performance. An 80mm air cavity (glass to glass) is recommended for thermal performance.

Products Granada Glazing Specified

To match the look and style of the continuous glazing, we coupled traditional horizontal sliders. Granada’s horizontal sliders are supplied with durable brass rollers which allows the individual panels to glide over each other smoothly. The panels interlock with each other where qulon draught excluders and wool pile is used to create a tight seal. As our frames are manufactured on precision CNC machinery, we can ensure the very best thermal insulation.

As the Stoner building is Grade II Listed, we needed to ensure that the secondary glazing was not visible from the outside. We manufactured horizontal sliders to match the sight lines of the primary windows which make the installation unobtrusive and discreet. We were able to install the secondary glazing tight up to the existing façade which causes the secondary glazing to blend seamlessly into the environment and offer optimum thermal performance. Overall Granada Glazing has designed, manufactured and installed over £1 million of secondary glazing units for the University.

Lecture-Theater

Products: Horizontal Sliders with 6mm Low-E Glass.

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