“Perhaps surprisingly, modern PVC-U windows can meet both of these requirements. We now supply our PVC-U Vertical Sliding Sash windows in cream woodgrain and white woodgrain finishes from stock, and can foil them in a variety of finishes to suit the style of any building. This gives the windows on heritage properties an authentic look, with all the energy efficiency capabilities that contribute to exemplary Windows Energy Ratings (WERs).”
Spectus Windows Systems’ energy efficient PVC-U Vertical Sliding Sash windows were used to replace the old Georgian-style timber framed, single glazed sash windows at the University of Manchester, allowing it to retain the traditional look of its windows with the added benefit of unrivalled energy performance.
Droylsden Glass director and co-founder, Paul Thackeray, comments: “One of the main things the University was interested in was the energy saving properties the PVC-U windows could provide in comparison to its existing single glazed timber windows. It also emphasised the importance of ensuring that the classical appearance of the prestigious building was maintained, so we made sure that the new PVC-U windows we manufactured for them in conjunction with Mercury Glazing were in keeping with the original windows’ elegant and ornate style.”
To prove the new windows’ improved thermal performance capabilities, thermal image pictures were taken of the original single glazed sash window and a newly installed double glazed PVC-U Vertical Sliding Sash window. The bright red colouring of the image of the original windows showed a large amount of heat was escaping through them at the Zochonis Building. The green colouring of the thermal images taken of the new windows, however, demonstrated their superior heat retaining properties, indicating that the University not only offers a better working and learning environment for its staff and students, but is enjoying the significant cost savings that improved energy efficiency brings.
Aside from fulfilling the project’s quality and budgetary requirements, the University was so delighted with the appearance and performance of Spectus Window Systems’ products in the first phase of the project that they were specified for the second phase of the renovation.
Michael Lomas, senior architectural technician at the University of Manchester, concludes: “We were very impressed with the new windows as they make the Zochonis Building a much more comfortable environment to work in. They also stand as proof that just because a building is hundreds of years old, this doesn’t mean it can’t benefit from the latest advances in sustainable building products; far from looking too modern or out of place, the finish of the windows complements the building’s exterior perfectly, maintaining the iconic appearance of the Zochonis Building.”