Selection and control of green roof materials based on sponge city perspective

Abstract

This article starts from clarifying the connotation relationship between sponge city construction and green roof, and analyzes the construction plan and the best material selection under the influence of sponge city construction. Then introduces and compares the construction of the green roof under the sponge city background and the materials that can be used at the structural level, the evaluation index system of material selection based on DEA, five kinds of materials of input/output ratio of SBS modified asphalt waterproof coiled material is 0.477, TPO thermoplastic polyolefin waterproofing material is 0.255, PVC waterproof coiled material is 0.335, EPDM waterproofing material is 0.292, and spraying polyurea waterproof coating is 0.245. Comparison and analysis to choose spraying polyurea waterproof coating as the green roof material is more reasonable. This will provide a basis for the design of green roof materials in the context of a sponge city.