既有混合建築的複層立面改造之研究

Double-skin Facade Design for Building Envelop Retrofitting

伴隨經濟成長所衍生大量開發的都市建物，在歷經三十年以上的歲月後，近年整建或拉皮之需求與日俱增。然觀察台灣建築立面多無秩序，其原因係未能因應社會演變或無法反映居住者需求，而產生許多附置物覆蓋原有的建築立面，而附置物也因長期使用而劣化，如冷氣架或鐵窗生鏽斷裂等；再加上外牆多以溼式工法張貼磁磚，年久容易造成剝落、鼓脹等劣化現象，增加公共安全之風險。
因此本研究為解決上述外牆老化、附置物收納等問題，建置一套複層立面乾式工法的設計系統。其系統本身須先界定可變與不可變之參數，且以市面上常見的工業材尺寸，重新定義老屋外牆的模組尺寸，並以目前現行複層立面歸納出6大系統模組與2種變化式，供設計者針對不同立面現況與需求做選用，最後以台南中華國賓商業大樓作為案例操作，套用設計系統後提出結果方案。本研究主要成果有二，首先為提供6種設計模組，可依據整修對象進行設計參數調整，與不可變更之參數與建築部位指認，並針對外牆面飾材常見之工業材料分析其尺寸，提出適合外牆整建的解決方案。第二則是藉由BIM原理建置建築資訊模型，透過層級化的主次系統構架，評估成本效益外，另模擬通風、熱輻射之改善成效，藉此驗證整建時選用複層立面之優點。

The objective of this research is to provide a design system for multi-storey facades in the case of aging buildings. In the current traditional oldhouse facelifting, the original tiles need to be knocked out, which often causes noise, dust, and waste. Therefore, the new multi-layer facade design of the old house is developed, and the dry construction method is used to reduce the noise, vibration, and dust of the original wall. And other environmental impacts, less and less construction waste.
This research uses Taiwan's native iron windows, rain shelters, signboards and other attachments as design ideas, analyzes and translates the attachments, and controls the material flow from the external environment to the indoor environment with the multi-layer facade and the inner and outer facades , energy flow and signal flow, etc., also use the hierarchical primary and secondary system framework to make various system components of the building more systematic and structured, and the multi-layer facade does not need to change the original wall surface, which has an excellent construction period saving and cost effectiveness, and use the BIM building information model to build and analyze the feasibility assessment of ventilation and heat radiation, and assist the advantages of choosing multi-story facades during renovation.