PVC-U wins over aluminium
26th June 2018

Fabricator DEMPSEY DYER, working with the Berkeley Group, installed 1,100 Deceuninck 2500 Tilt and Turn window frames in the Woodward Buildings complex for Imperial College London in a project that had originally specified aluminium frames.

This was a technically demanding project and the client had complex requirements for aesthetics, weather performance, acoustics, safety and durability, according to Dempsey Dyer, which met all the criteria, against the original specification for aluminium, with the same performance and aesthetics, while saving 30% on the overall cost of windows.

The 2500 Tilt and Turn met the high-rise demands with Class 4 Air permeability; Class 8A Water tightness and Class A5 2000Pa exposure. The windows also achieved low U-Values of 1.5 and G-Values of 0.27.

With lower floors and elevations facing main roads demanding higher acoustic values. Deceuninck’s technical team worked with Dempsey Dyer to develop windows with seven different levels of acoustics, ranging from RW34db to RW43db.

The windows were finished in Iron Grey Decoroc on all four sides of the profile to match the appearance of aluminium.

www.dempseydyer.co.uk
www.deceuninck.co.uk