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http://dx.doi.org/10.4491/KSEE.2012.34.9.623

The Effect of Roofing Materials for Using Harvested Rainwater  

Lee, Ju Young (Korea Institute of Science and Technology)
Kim, Tschung-Il (Department of Civil and Environmental Engineering, Seoul National University)
Kim, Hyunwoo (Department of Civil and Environmental Engineering, Seoul National University)
Han, Mooyoung (Department of Civil and Environmental Engineering, Seoul National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.34, no.9, 2012 , pp. 623-629 More about this Journal
Abstract
The objective was to evaluate the quality of harvested rainwater of the roofing materials used and the presence of lichens/mosses on the roofing surface. This experiment was studied in the field where five pilot structures with different roofing materials (i.e., wooden shingle tiles, wooden shingle tiles (including mosses), concrete tiles, clay tiles [Gi-Wa] and slate tiles) were installed. As a result, the clay tiles [Gi-Wa] was found to be the most suitable for rainwater harvesting applications. It was due to the disinfection from ultraviolet light and high temperature according to characteristic of roofing materials. Comparison with quality of rainwater on that wooden shingle tiles with and without including mosses, which may affect the concentration of and wooden shingle tiles including mosses, mosses may affect concentration of TOC, nitrate, and sulfate. Additionally, the average concentration of asbestos was determined to be measured at $0.002/cm^3$ for the slate tiles. The value satisfied with it met the Ministry of Environment's Multi-use facility standard and Ministry of Labor's Office standard ($0.01/cm^3$).
Keywords
Roofing Materials; Wooden Shingle Tiles; Slate Tiles; Asbestos; Harvested Rainwater;
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