1. Carbon Management Steering Board 7 th October 2011 Library Solar Window Film CARBON MANAGEMENT BOARD – October 2011

2. Initiative Following last April’s staff / student ‘stamp your feet’ survey, significant numbers of comments were received regarding the high internal temperatures Facilities Management had already installed ‘wind traps’ on the upper level, and adjusted plant & services to their limit. Further engineering solutions and external shading options have been refused planning permission. We have therefore introduced a high efficient window film to the east and south facades, to help reduce heat gain. CARBON MANAGEMENT BOARD – October 2011

3. Impact of initiative Date Surface Temperature of Glazing Air Temperature (100 mm from glazing) Room TemperatureWeather conditions Without Solar Control film With Solar Control filmWith control filmAverage Outside air Temperature °C 17/08/2011302725 Part Sun/ Cloud 22°C 19/08/20112624 23 Part Sun/Cloud 20°C 01/09/201127242524 Part Sun/Cloud 21°C 02/09/201135312826 Full Sun 25.5°C Average29.52625.524.5