過去建築的生產是從設計到使用的快速過程，在空間中留下這段過程的痕跡可以成為一種「建築索引」，讓使用者試著與建築的建構歷程產生連結。它可與建築生命週期「設計、施工、使用到拆除」四階段做對應。許多建築案例在空間中留下設計與施工的索引，但針對生命週期的最後一階段「拆除與廢棄」則較無著墨。拆除是建築物壽命的終點，在循環經濟的觀念中「可逆式建築系統」將拆除轉為拆解，循環使用建築構件與材料，延長其壽命，可以減緩建築快速生產對環境造成的巨大影響。
本研究以「建築索引」的概念探索設計方法，並落實於可逆式建築系統。首先以「建築生命週期協調矩陣」分析各建築系統可逆性的優劣，找出最適合探索的元件。然後進行「鹼激發循環漿體」材料實驗，以矽酸鈉 (Na ２SiO3) 為基材，添加 3種不同比例之工業發泡劑，探討漿體輕量化、結構強度與熱傳導間的最佳組合，回應建築皮層最基本的物理功能需求。
研究另外設計示範了 5 種模矩化的磚體原形，磚體間互為索引關係，可以組構成不同波浪形式的外觀，且能根據需求進行拆解與替換，延長建築皮層生命週期。也鼓勵與引導使用者透過索引探索並認識皮層建構過程，實際參與單元替換。
索引式建築皮層找到了感性與理性間的平衡關係。可逆性「理性」的回應了建築對環境造成破壞的妥協方式。索引則是較為概念且「感性」的設計方法，將建築生產過程所留下的痕跡轉為程序性的建構，進而產生連續性的索引。兩者共存擦出的火花正是建築最精彩之處，更為當今建築的生產及空間使用提出了全新的可能性，也開創了一種不同型態的參與式設計。

The traditional production of building is a rapid process from design to operation. The process leaves traces in building as indexes, which encourage users to understand the process of making architecture. It corresponds to the four stages: design, construction, operation and demolition in the architectural life cycle. Indexical methods had been in many cases leaving traces in the design and construction process. However, the “demolition” at the end of the building life cycle is less focused. Adopting the concept of circular economy, “reversible building” is a method designed for dismantling and recycling building components and materials, turning demolition into dismantling. It decreases the huge footprint and impact to environment.
This research uses the concept of “indexical architecture’’ to explore design methods and implement them into reversible building system. First uses the “architecture life cycle coordination matrix” to analyze the pros and cons of the reversibility of each building system, followed by the "alkali-activated circulating slurry" material experiment, which focuses on the correlation between the weight and the structural strength, and tests the heat conduction between different slurry. Besides exploring the most basic physical function of the architectural skin, the design demonstrates five modular brick prototypes. The bricks, indexical to each other in form parametrically, can be combined into different wave surface, and can be disassembled and replaced according to needs to extend the life cycle of the skin. The user uses the indexical method to comprehend the skin construction process and actually participate in the repair, reuse, remade, and recycle the module.
“Indexical Architectural Skin“ not only promotes the concepts of process of skin construction and reversible buildings, but also interprets a new possibility of skin construction.

中文參考資料
[1] 易騰, 循環經濟材料應用於建築構造之探討。國立成功大學建築研究所碩士論文。台南市 , 西元2018 年5 月。
[2] 張友銓, 開放性老屋拉皮系統應用於集合住宅之研究。國立臺灣科技大學建築研究所碩士論文。台北市 , 西元2011 年6 月。
[3] 蕭榕儀, 赫爾佐格與德穆隆建築皮層設計手法之研究。國立成功大學建築研究所碩士論文。台南市 , 西元2010 年7 月。
[4] Edward Allen 著, 呂以寧、張文男譯, 建築構造的基本原則 : 材料和工法。六合出版社 , 西元2012 年3 月。

外文參考資料
[1] Elma Durmisevic, Circular Economy In Construction Reversible Building Design Stratege. Netherlands, 2019。
[2] Georges Bataille, Bertolt Brecht, Jean-Luc Godard. Plotting Traces on Process. 1997.
[3] Jesse Reiser, Atlas of Novel Tectonics. Princeton Architectural Press, New York, 2006.
[4] Stan Allen, Tracing Eisenman : Peter Eisenman Complete Work. Thames & Hudson, London, 2006.
[5] Wasim Salama, Design of Concrete Buildings For Disassembly: An Explorative Review. International Journal of Sustainable Built Environment, Volume 6, Issue 2,
December 2017, Pages 617-635.

網路參考資料
[1] 楓川秀雅、楊秀川，空心磚計畫一，
檢自https://solomo.xinmedia.com/archi/4701-fchyarch
[2] Moriokashoten Research Team, 蟻鱒鳶,
檢自https://soken.moriokashoten.com/
[3] Peter Eisenman House VI,
檢自https://house6.weebly.com/house-vi.html