Abstract
Green facades have been well proven to be efficient in preventing overheating of buildings from excessive solar radiation. The effect of orientation on thermal performance of green facade in hot and humid climate is examined in the present study. Field measurement was carried out in Suzhou, on south-facing and east-facing walls, which are covered by green facades in different orients. The results show that green facades can effectively reduce temperature increment in the daytime compared with bare wall. Compared with green facades in east orient, green facades in south orient have better thermal performance in daytime and nighttime. Relative humidity under leaf layer increased significantly for green facades. And relative humidity of surrounding air could be influenced within a small distance (not exceeding 15 cm) by green facades. This study provides useful information for scientist to further investigate microclimate alteration effect of green facades.
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