TY - JOUR
T1 - Lifecycle assessment of living walls
T2 - Air purification and energy performance
AU - Feng, Haibo
AU - Hewage, Kasun
PY - 2014/4/15
Y1 - 2014/4/15
N2 - Covering a building envelope with green walls is considered a sustainable construction practice. Green walls can be classified as green facades or living walls based on their purpose and characteristics. Living walls are built with different layers and variable planting styles depending on the geographic location, function, and weather conditions. This paper discusses a comparative lifecycle assessment (LCA) of three living wall systems: trellis system, planter box system, and felt layer system. Chemical emissions and energy consumption of the living wall materials are evaluated in the whole lifecycle, and compared with the chemical absorption and energy savings of operational living walls. The results demonstrated that the felt layer system is not environmentally sustainable in air cleaning and energy saving compared to the trellis system and modular panel system. The environmental performance of living walls is influenced by the types of materials and plants chosen for the systems, as well as the external factors, such as climate and building type. The LCA indicates the need of environmental friendly materials for sustainable living walls.
AB - Covering a building envelope with green walls is considered a sustainable construction practice. Green walls can be classified as green facades or living walls based on their purpose and characteristics. Living walls are built with different layers and variable planting styles depending on the geographic location, function, and weather conditions. This paper discusses a comparative lifecycle assessment (LCA) of three living wall systems: trellis system, planter box system, and felt layer system. Chemical emissions and energy consumption of the living wall materials are evaluated in the whole lifecycle, and compared with the chemical absorption and energy savings of operational living walls. The results demonstrated that the felt layer system is not environmentally sustainable in air cleaning and energy saving compared to the trellis system and modular panel system. The environmental performance of living walls is influenced by the types of materials and plants chosen for the systems, as well as the external factors, such as climate and building type. The LCA indicates the need of environmental friendly materials for sustainable living walls.
KW - Chemical emissions
KW - Energy sustainability
KW - Lifecycle analysis
KW - Living walls
UR - http://www.scopus.com/inward/record.url?scp=84897375032&partnerID=8YFLogxK
U2 - 10.1016/j.jclepro.2014.01.041
DO - 10.1016/j.jclepro.2014.01.041
M3 - Article
AN - SCOPUS:84897375032
VL - 69
SP - 91
EP - 99
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
SN - 0959-6526
ER -
