Abstract
본 연구는 국내에서 시행중인 친환경 건축물 인증제도 (G-SEED)에 따른 환경영향 저감 효과를 파악하는 것을 목적으로 한다. 이를 위하여, G-SEED 인증을 받은 초등학교 건축물과 인증을 받지 않은 일반 초등학교 건축물을 대상으로, 전과정평가 방법론을 이용하여 4가지 환경영향범주 (지구온난화, 오존층파괴, 산성화, 부영양화)에 따른 환경영향을 평가하고, 결과를 비교하였다. 건축물에 대한 환경영향평가는 자재생산, 자재운송, 시공, 운영단계를 포함하였으며, 운영기간은 40년으로 설정하였다. 두 건축물의 단위연면적당 환경영향을 비교한 결과, 일반 초등학교 건축물에 비해 친환경 인증 초등학교 건축물의 환경영향이 큰 것으로 나타났다. 예를 들어, 친환경 인증 초등학교 건축물의 지구온난화지수는 3.751 <TEX>$t-CO_2eq./m^2$</TEX> 로 산출된 반면, 일반 초등학교 건축물의 지구온난화지수는 3.282 <TEX>$t-CO_2eq./m^2$</TEX> 로 산출되어, 약 12.5% 크게 나타났다. 이는 G-SEED 인증이 4가지 측면에서의 환경영향의 저감을 보장하지 못한다는 것을 의미한다. 따라서 건축물로부터 발생하는 환경영향의 저감을 달성하기 위해서는 G-SEED에 대한 보완이 필요하다. This study aims to understand the environmental impact reduction of green buildings that are certified by Green standard for energy and environmental design(G-SEED). To ensure this end, this study assessed and compared the environmental impacts(global warning, ozone layer depletion, acidification, and eutrophication) of a G-SEED-certified elementary school building(green building) and an uncertified elementary school building(traditional building) using the life cycle assessment methodology. This study considered the environmental impacts from the material manufacturing, material transportation, on-site construction, and operation during 40 years. The comparison of the environmental impact intensity of two buildings showed that the green building generated much more environmental impacts than the traditional building. For example, the global warming potential of the green building was approximately 12.5% higher than of the traditional building since the global warming potential of the green building was 3.751 <TEX>$t-CO_2eq./m^2$</TEX> while that of the traditional building was 3.282 <TEX>$t-CO_2eq./m^2$</TEX>. It signifies that the G-SEED doesn't guarantee the reduction of the environmental impacts in terms of four impact categories. Therefore, the G-SEED should be complemented and improved to achieve the environmental impact reduction.
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More From: Korean Journal of Construction Engineering and Management
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