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The refurbishment industry of exterior walls is quickly rising in the market, due to the importance of urban landscape has been concerned in Taiwan. The traditional renovation method of exterior walls has brought amount of dust, noise, and vibration, and is inflexible to the renewed changes in the future. The weather is general hot in Taiwan which has resulted the problem of western exposure and solar radiation in buildings. And the exterior walls of buildings are general with low insulation which has resulted the interior high temperature. The demand for air-conditioning has been increased which is against the idea of environmental protection and sustainability.
For the above reasons, this thesis intends to research Exterior Insulation Finish System (WDVS Warmedamm-Verbundsysteme) from Germany and analyze its characters. The advantages of EIFS include: 1.insulation, 2.various construction, 3.easy repairing, 4.flexible size, and 5. sustainability. And then collect the domestic building envelope systems which are related to EIFS. By analyzing the difference between domestic systems and EIFS, find out the problems and difficulties need to be solved which EIFS apply to local exterior walls in buildings. And then, according to 8 items: 1.building condition, 2.construction technique, 3.climate and position, 4.local custom, 5.aesthetic standard, 6.environmental impact, 7.regulation, and 8.the idea of green building, estimate whether EIFS is adaptable to local exterior walls.
According to the results of analysis and estimation, localize EIFS to be suitable for domestic buildings by improve the system constitution, construction method, and adaptation for regulation. And then, with the constraint on local environment and industries, construct a localized EIFS for exterior wall. It include: 1.the catalogue of local materials, 2.three local constitution types and 3. local construction method.
Finally, select one apartment residence to simulate the renovation process. Select appropriate materials and constitution types from localized EIFS to design its exterior wall and verify the feasibility of localized EIFS. Set up three scenarios of renovation, and compare localized EIFS with the traditional renovation. The result is that, in three renovation processes, the life cycle construction costs, construction waste, carbon dioxide emission, and reusing costs of localized EIFS are superior to the traditional renovation. But the construction duration of localized EIFS is longer than the traditional renovation. And estimate that the exterior walls using localized EIFS can decrease 20% electric consumption of air-conditioning in every year than the traditional renovation.
Localized EIFS has been constructed by a method of reducing environmental impact, and improved the insulation of exterior walls efficiently to decrease the electric consumption of air-conditioning. In addition to the low construction cost, the recyclable materials are superior to the traditional renovation. Therefore, localized EIFS is worth promoting.
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