Carbon Dioxide Analysis for Building Exterior Wall Materials - Life Cycle Perspective
Date Issued
2012
Date
2012
Author(s)
Guo, Cheng-Jhong
Abstract
House age over 20 years of building floor area in Taiwan, accounting for more than three percent of all the total number of means of building in Taiwan generally faced with an aging threats facing the need to update the maintenance stage, while the surge of the price of oil and electric power, it is the trend to save energy and reduce carbon emission in green building. In order to alleviate the state of severe global weather changing, control on the emission of carbon-dioxide has recently become the most pivotal career of environmental protection, especially jumped up to the most significant issue in World Summit. According to literature, though there are myriads of discussion on carbon-dioxide emission from outer wall materials, they still pay more attention to analysis on emission from newly-made outer wall than to rate of replacement and maintenance of materials in its life cycle. From this, the thesis will try to analyze the life cycle of outer wall materials, including the notion of maintenance and management. When considering the part of replacement and maintenance, the 50 years life cycle of buildings, and the difference between life of materials and maintenance cycle, there is discrepancy of the consequence of carbon-dioxide emission. Eventually, the following are the consequence of my analysis on carbon-dioxide emission from each materials: exposed concrete is 2.4 (kg-CO2/m2), stone material is 17.3 (kg-CO2/m2), paint is 23.64(kg-CO2/m2), external walls with stucco is 29.66 (kg-CO2/m2), external wall tile is 31.68 (kg-CO2/m2), low-E glass is 31.75 (kg-CO2/m2), aluminum board is 60.46 (kg-CO2/m2). From these data, it is clear that the amount of carbon-dioxide emission from paint is more than that of stone materials, because paint was replaced much more times, which is the notion of life cycle included in this experiment. However, because of partially rinsing, exposed concrete without outer wall materials has lower carbon-dioxide emission.
In the past, people put more emphasis on newly-built carbon-dioxide emission than on whole emission and maintenance. In lieu of it, the thesis will try to analyze the emission from whole outer wall materials in life cycle. Besides analysis of emission of outer wall sequence and the sequence of construction materials from production, transportation, construction, to dumping, the thesis discuss with the replacement and maintenance in life cycle in order to find out the emission from different life cycle of construction materials. Through the analysis, the thesis tries to provide employers with some useful data while selecting the outer wall materials to reduce carbon-dioxide emission more efficiently.
Subjects
Building Exterior Wall Materials
Life Cycle
Carbon Dioxide Analysis
Type
thesis
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