| 英文摘要 |
To estimate the CO2 reduction efficiency of building materials for reused street house, this study selected 8 street house cases from “Old House, New Life “reuse movement. First, it defined the renovation as “rebuilding” and “refinishing”, and then calculated the average material’s CO2 emissions in street house life cycle. The results indicated that the average CO2 emission is 93.27 kg- CO2 /m² before rebuilding, and CO2 increased after rebuilding on average by 0.18 kg- CO2 /m². In another hand, before refinishing, the average emission level was 10.77kg-CO2/m², after the refinishing, it increased by CO2 emissions level of 5.55 kg- CO2 /m² on average. In sum, the average overall CO2 emission was 103.14 kg- CO2 /m² before renovation, and it increased about 5% after renovation. Compared to tearing down and reconstruction a new house, if the extending life span of reused street houses is 15 years while the new construction one is 40 years, the life cycle CO2 emissions of reused street house could be reduced 88.9% for reserving considerable original building structures. It’s advantageous for reuse not only to make the best of old houses, but to decrease the environmental load. |
