International Conference | Bari- Lecce, Italy Session IV
AN EXAMINATION OF THE RELATIONSHIP BETWEEN BUILDING INTELLIGENCE AND SUSTAINABILITY USING LEED AND BREEAM CERTIFIED CASE STUDIES IN THE UK AND EUROPE
Tulika Gadakari1, Karim Hadjri2 & Sabah Mushatat3
1 Grenfell-Baines Institute of Architecture, School of Art, Design and Fashion, University of Central Lancashire, UK, tgadakari @ uclan. ac. uk
2 Grenfell-Baines Institute of Architecture, School of Art, Design and Fashion, University of Central Lancashire, UK, khadjri @ uclan. ac. uk
3 School of Energy, Geoscience, Infrastructure and Society, Heriot-Watt University, UK smushatat @ hotmail. com
Abstract
Green Building Rating Systems are certifying a number of buildings worldwide by awarding a‘ Sustainability Score’ that judges their sustainability value. It is evident that these buildings employ a wide range of intelligent building technologies to varying degrees. In order to find a relationship it was strategized that the intelligent building technologies used in these‘ certified Green’ buildings need to be analysed to assess their impact on the Sustainability Scores achieved. This paper hypothesizes that both building intelligence and sustainability are multi-dimensional entities measured using different parameters. The paper aims to determine the relationship between building intelligence and sustainability through case study analysis. Forty LEED( 10) and BREEAM( 30) certified buildings were chosen from the UK and Europe. The data collected from these buildings was subjected to quantitative and qualitative analysis( case study research) methods. Further to qualitative analysis: bi-variate correlation, regression analysis and 5 fold cross validation provided a best-fit logarithmic model that predicts the sustainability score of a building based on the number of intelligent building technologies used. Two over-arching themes emerged from the data: how the number and type of intelligent building technologies used affect the LEED / BREEAM score and how there needs to be an optimisation between the user’ s needs, building’ s functionality, core intelligence function of the technology used versus the prescriptive parameters imposed by rating systems such as LEED / BREEAM. A positive correlation was observed between the two variables noting that intelligent buildings do promote environmental sustainability. It was also found that buildings from the UK and Europe reported: 41 % reduction in energy consumption, 39 % reduction in water consumption and 36 % reduction in CO2 emissions. Additionally, the analysis revealed significant benefits on the economic and social front such as improved productivity, reduced absenteeism, and safer and convenient spaces.
Keywords
BREEAM, Intelligent buildings, LEED, Statistical Modelling, Sustainability.
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