Comparative Analysis of Environmental Performance of an Office Building Using Breeam and GBL

Redefining the impact assessment of buildings: an uncertainty-based approach to rating codes

“…There are two main systems used to assess the environmental impact of buildings, life cycle analysis and criteria-based tools (Cheng et al 2017;Assefa et al, 2007). The former, initially designed to assess the life cycle of products or processes (Bribián et al, 2009), measures the impact of the entire building's lifecycle within some boundaries set at the beginning of the analysis (e.g.…”

“…All rating codes are based on the same assessment system but with different weighting and selection of criteria. Such differences are sufficient to generate differences in final results when different rating codes are used to assess a building (Wallhagen and Glaumann 2011;Wallhagen et al, 2013;Cheng et al, 2017), thus showing that -despite sharing the same system of assessment -a common methodology and theoretical approach for criteria-based assessments is missing (Wallhagen et al, 2013). Nevertheless, as mentioned above, the use of these impact assessments for buildings is increasingly popular and is now embedded in many planning procedures and policies (Retzlaff, 2009) or used by financial and insurance companies utilising them as 'a basis for risk and mortgage appraisals and real estate valuations' (Cole, 2005).…”

“…This definition portrays rating codes as tools designed to provide evidence-base for decision-making. Much of the literature on this topic focuses on effectiveness in terms of precision and reliability of results (Krizmane, 2016;Yu et al, 2015;Alyamia and Rezguib,, 2012;Menezes et al, 2012;Kajikawa, 2011;Mateus and Luís Bragança, 2011;Reijnders and van Roekel, 1999) or comparability across the different rating codes (Becchio et al, 2014;Cheng et al, 2017;Adegbile, 2013;Chew and Das, 2008;Crawley and Aho, 1999) in order to increase their effectiveness within the decision-making process. But only few studies (mentioned in the following sections) discuss fundamental shortcomings, which affect the capability of the impact assessment tool to meet its broader aim and point at the danger of relying on ratings that are merely predictive when taking decisions.…”

“…Effectiveness in raising awareness is also problematic for other actors such as occupants. Cheng et al (2017) maintain that the involvement of the building users within the design process, in order to identify their needs and goals, is necessary. Without, it will be difficult to judge which one of the energy saving concepts and measures perform well and which ones do not work at all.…”

Requisitos De Desempenho E Eficiência Energética Presentes Em Certificações Ambientais: Leed E Breeam

“…A maioria dos artigos aborda a certificação LEED e quando mencionam a BREEAM, ou outras, é com o intuito de comparar os requisitos e os critérios de pontuação entre elas. Ambas as certificações são ferramentas baseadas em critérios e,Cheng et al (2017), aponta que esse tipo de ferramenta é mais amplamente aceito e empregado.Apenas Oliveira e Faria (2019), Akcay e Arditi (2017) e Gurgun e Arditi (2017) realizaram análises de custo e benefício das certificações ambientais. Quanto à análise econômica, Palmer e Walls (2017) investigam uma nova política adotada em 15 cidades dos EUA, onde proprietários de edifícios comerciais e, às vezes, multifamiliares, devem divulgar seu uso anual de energia e o comparar com outros edifícios do entorno.…”