The original and oldest part of the University of Sheffield has been "revived" with the help of sash window specialist Ventrolla South Yorkshire. Ventrolla renovated a total of 32 previously broken sash windows in the Sir Frederick Mappin Building, improving the condition of the timber windows and reducing draughts. The large project has helped to transform the building from a redundant lab that now houses a number of state of the art meeting rooms. Whilst restoring the sash windows, the Ventrolla Perimeter Sealing Sytesm (VPSS) was also installed, improving the energy efficiency of the windows by eradicating draughts and rattles. Bryan Evans from the University of Sheffield Estates said: "The renovation has had a huge impact and the building now looks more beautiful than ever. Just 20% of the window had to be replaced, and even these were highly authentic replicas, so we are very pleased." The Grade II listed Sir Frederick Mappin Building, named after the "Father of the University of Sheffield, " was designed by Sheffield architects Flockton and Gibbs in 1886.