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Costing Small Cleanroom

Dr. Cheong Eng Gan and Liu Yang, National University of Singapore


The quick development of high technology and life sciences industries nowadays sees the need for more and better cleanrooms in modern laboratories expanding dramatically.

Cleanrooms, as mechanically intensive facilities that consume large amount of energy to maintain its defined environment have high capital and operating costs. Furthermore owners want the cleanrooms to be constructed for less money, in less time, with higher performance standards, and lower running costs.

Most cleanroom designs and construction are customized for a wide ranging scale of operations.

To date, there is no complete study on cost that is based on the whole lifetime of cleanrooms. There is no standard cost system available. This made the exercise of quantifying, varying and projecting costs of cleanroom design and construction difficult. To enable accurate costing, it is necessary to establish a considerate cost framework based on the critical parameters of the facility.

This paper defines critical elements of cleanroom design that would impact significantly on the costs of its construction. It also presents the relationships in a cost model. The cost model is applied to small cleanrooms that are increasingly demanded by entrepreneurs and small and medium enterprises. Such small, standard and modular cleanrooms are suitable for individual inventors, small high technology production and school laboratories.


Cheong Eng Gan has a B.Sc (Building) from the University of Singapore, a MBM from the Asian Institute of Management and a Phd from the National University of Singapore. He has worked in the construction industry as project consultant and tertiary institution as faculty member in Singapore and Asia. He has 25 years of research and industrial experience in large and specialized development projects.

Cheong Eng Gan is currently employed by the Department of Building, School of Design and Environment, National University of Singapore as Associate Professor. He leads the research group investigating on life cycle and costing of specialized buildings and elements. This group concentrates on new building technology and its applications. Current work in collaboration with professional and commercial organizations includes applications to high technology buildings and their performances.

Liu Yang has a Bachelor of Civil Engineering and a Bachelor of International Finance from the Shanghai Jiao Tong University and she is pursing a postgraduate research degree in M.Sc.(Building) in National University of Singapore (NUS) now. She has 5 years of work experience in project budgeting and management in Shanghai Hua Hong NEC electronics Co., Ltd and its predecessor Shanghai Hua Hong Microelectronics Co., Ltd. in cleanroom construction.

Miss Yang has been a research student in Dept. of Building, NUS for one year. Now she has completed her course study and is researching into the topic on life cycle costing for cleanrooms as her graduate thesis. From last October, she has been participating in an on-going research project: Life cycle costing of High Technology Building: Case of Life Science Research Building, which is sponsored by NUS, icfox (Singapore) and Davis Langdon & Seah.

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