Environmental Impacts over the Life Cycle of Residential Buildings Using Different Exterior Wall Systems

2009 ◽  
Vol 15 (3) ◽  
pp. 211-221 ◽  
Ramzy Kahhat ◽  
John Crittenden ◽  
Fariya Sharif ◽  
Ernesto Fonseca ◽  
Ke Li ◽  
Buildings ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 54
Amir Oladazimi ◽  
Saeed Mansour ◽  
Seyed Abbas Hosseinijou

Given the fact that during the recent years the majority of buildings in Iran have been constructed either on steel or concrete frames, it is essential to investigate the environmental impacts of materials used in such constructions. For this purpose, two multi-story residential buildings in Tehran with a similar function have been considered in this study. One building was constructed with a steel frame and the other was constructed with a concrete frame. Using the life cycle assessment tool, a complete analysis of all the stages of a building’s life cycle from raw material acquisition to demolition and recycling of wastes was carried out. In this research, the environmental impacts included global warming potential in 100 years, acidification, eutrophication potential, human toxicity (cancer and non-cancer effects), resource depletion (water and mineral), climate change, fossil fuel consumption, air acidification and biotoxicity. It could be concluded from the results that the total pollution of the concrete frame in all eleven aforementioned impact factors was almost 219,000 tonnes higher than that of the steel frame. Moreover, based on the results, the concrete frame had poorer performance in all but one impact factor. With respect to global warming potential, the findings indicated there were two types of organic and non-organic gases that had an impact on global warming. Among non-organic emissions, CO2 had the biggest contribution to global warming potential, while among organic emissions, methane was the top contributor. These findings suggest the use of steel frames in the building industry in Iran to prevent further environmental damage; however, in the future, more research studies in this area are needed to completely investigate all aspects of decision on the choice of building frames, including economic and social aspects.

2012 ◽  
Vol 727-728 ◽  
pp. 815-820 ◽  
Jerônimo Moraes Gomes ◽  
Ana Luiza Folchini Salgado ◽  
Dachamir Hotza

Ceramic bricks are one of the most widely used materials in both commercial and residential buildings. Ceramic bricks play a relevant role in the Brazilian economy. The basic input material for this industry is red clay. As environmental problems increase, the need for environment-friendly building design increases. To achieve this, architects and engineers need reliable data on the environmental impacts of various building materials, including ceramic bricks. In this paper a comparative Life Cycle Assessment between two ceramic brick production units in Santa Catarina State, Brazil, has been carried in a comparative approach. Key impact categories, including fossil fuel use, global warming, ozone depletion, ecotoxicity, and human toxicity were assessed. The analysis has shown a particular relevance of the respiratory effects in both systems and the critical point has been found in the fuel used in the furnace for firing the bricks which are responsible, during the ring process, for the relevant CO2 emissions.

2014 ◽  
Vol 6 (12) ◽  
pp. 8592-8603 ◽  
Reza Broun ◽  
Hamed Babaizadeh ◽  
Abolfazl Zakersalehi ◽  
Gillian Menzies

2021 ◽  
pp. 1420326X2110402
Medhat Kazem ◽  
Sherif Ezzeldin ◽  
Osama Tolba

Nowadays, energy retrofit for existing buildings has become a worldwide approach to reduce total energy consumption. A wide range of energy-efficient retrofit measures is actively affecting the decision process, of which retrofit alternatives should be used. The existing study aims to evaluate the effects of façade retrofit measures in residential buildings in Cairo using life-cycle cost analysis. An extensive variety of façade retrofit alternatives was explored individually and combined. A hypothetical benchmark building was used as a reference to represent typical residential buildings in Cairo. DesignBuilder was adopted to assess and quantify the energy-saving potentials for the proposed measures. The evaluation process was based on a parametric analysis of four major façade parameters that are affecting building energy performance; exterior wall configuration, glazing type, window-to-wall ratio and external shading. Thermal characteristics for façade retrofit measures were analysed to give a better understanding of the thermal performance for each retrofitting case. Results showed that the most cost-effective alternative for façade retrofit is to install a 1 m overhang as an external shading device, which reached 1.4% life-cycle cost saving and 18% energy saving. Finally, a sensitivity analysis for the main life-cycle cost supplements was presented to show major variables that are affecting life-cycle cost analysis.

2017 ◽  
Vol 4 (9) ◽  
pp. 1784-1797 ◽  
Ronald S. Lankone ◽  
Katie E. Challis ◽  
Yuqiang Bi ◽  
David Hanigan ◽  
Robert B. Reed ◽  

Accurate measurement of engineered nanomaterial (ENM) release from diverse product lines and matrices during use is critical to evaluating environmental impacts across the life cycle of a nano-enabled product.

2014 ◽  
Vol 48 (19) ◽  
pp. 11696-11704 ◽  
Dongyan Mu ◽  
Min Min ◽  
Brian Krohn ◽  
Kimberley A. Mullins ◽  
Roger Ruan ◽  

U Surahman ◽  
T Kubota ◽  
A Wijaya

Katie Skillington ◽  
Robert H Crawford

2015 ◽  
Vol 54 (16) ◽  
pp. 4003-4010 ◽  
Shawn E. Hunter ◽  
Richard K. Helling

2012 ◽  
Vol 37 (9) ◽  
pp. 1044-1058 ◽  
Anna Śliwińska ◽  
Krystyna Czaplicka-Kolarz

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