This page lists all Faculty members in BCT. Adjunct FacultyAssociates, and Emeritus Faculty are listed on separate pages.

Peggi Clouston | Ho-Sung Kim
Alexander Schreyer | Bejamin Weil | Chao “Luna” Xiao

Peggi L. Clouston

Peggi Clouston

Associate Professor & Graduate Concentration Coordinator, Building Systems concentration

R: Holdsworth 127 – T: +1 (413) 545-1884 – E: clouston [Email address: clouston #AT# umass.edu - replace #AT# with @ ]CV

Ph.D. (University of British Columbia, Vancouver), M.A.Sc. (University of British Columbia), B.A.Sc (University of British Columbia)

P. Eng. (APEGBC and ASCE associate member)

Dr. Clouston teaches courses in structural wood design, material mechanics and bio-based composites to students of architecture, engineering and construction technology. Her research focuses on the structural behavior of biobased composite structures and innovative wood products. Research topics include: wood-concrete composite systems, local species Cross Laminated Timber (CLT), innovative timber connections, and computational modeling of Structural Composite Lumber.

Dr. Clouston is a registered professional engineer (APEGBC) and a member of the American Society of Civil Engineers. She serves on numerous national review panels and committees and is founder of the UMass Professional Masters Option in Green Building (now part of the Environmental Conservation graduate program) well as the UMass Wood Structures Symposium.


Ho-Sung Kim

Ho-Sung KimLecturer & Chief Undergraduate Advisor

R: Holdsworth 125 – T: +1 (413) 545-1970 – E: kimhs [Email address: kimhs #AT# umass.edu - replace #AT# with @ ]

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Ph.D. (Architecture, University of Illinois at Urbana-Champaign)
M.S. (Civil Engineering, University of Illinois at Urbana-Champaign)
M.Arch. (Architecture, University of Illinois at Urbana-Champaign)

Dr. Kim’s research interests are optimal design of renewable energy systems for building applications using building energy simulations and development and Computational Fluid Dynamics (CFD) analysis of high-performance building envelopes. Dr. Kim has experience in research projects funded by the U.S. Department of Energy (DOE) and the U.S. Department of Housing and Urban Development (HUD). Before pursuing his Ph.D. in Architecture, Dr. Kim worked for Perkins+Will in Los Angeles, CA.


Alexander C. Schreyer

Senior Lecturer & BCT Program Director

R: Holdsworth 126 – T: +1 (413) 545-1976 – E: schreyer [Email address: schreyer #AT# umass.edu - replace #AT# with @ ]

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LinkedInResearchGate – Twitter – Website

M.A.Sc. (Wood Science, University of British-Columbia, Canada)
Dipl.-Ing. (B.S. Structural Engineering, FH Wiesbaden, Germany)

Combining backgrounds in structural engineering, wood science and digital design, Mr. Schreyer’s interests span the entire range of planning and design of buildings and structures. He specializes in the design and construction of mainly heavy-timber type (e.g. glulam) structural systems. This is complemented by a strong interest in computer applications and web-based solutions in structural engineering, construction and architecture.

Mr. Schreyer is Program Director and Senior Lecturer in the Building and Construction Technology (BCT) program at the University of Massachusetts (UMass) in Amherst, MA. He teaches classes in BIM (Building Information Modeling) and CAD (Computer-Aided Design), building materials and construction methods, wood properties as well as a capstone graduate structural design class in the M.Arch. architecture program.

In his research, Mr. Schreyer focuses on the behavior of wood-based structural systems with a particular interest in innovative connection systems for wooden structures. Other foci are development of software-based approaches in digital design and structural optimization as well as interactive web-based tools.

Recently, Mr. Schreyer published the book “Architectural Design with SketchUp” with John Wiley & Sons, which provides a beginner- to intermediate-level overview of various techniques to “do more” with the popular 3D modeling application Trimble SketchUp.


Benjamin S. Weil

Benjamin S. WeilExtension Assistant Professor, Extension Program in Building Energy

R: Holdsworth 115 – T: +1 (413) 545-1820 – E: bweil [Email address: bweil #AT# eco.umass.edu - replace #AT# with @ ]

Ph.D. (Environmental Studies, University of California–Santa Cruz)
M.A. (History, Syracuse University, New York)
B.A. (History, University of Massachusetts–Amherst)

Dr. Weil teaches courses in energy efficient buildings. With primary responsibility for the Extension program in building energy, his research program is responsive to the needs of various stakeholders in the Commonwealth of Massachusetts, including home builders, architects, weatherization companies, energy utilities, state government agencies, town governments, environmental and community organizations, and homeowners. He is particularly interested in the social and behavioral dimensions of energy efficiency. He is a building analyst certified with the Building Performance Institute, and continues to enjoy building diagnostics. He manages the online Green Building Certificate for the BCT program.


Chao “Luna” Xiao


Lecturer, Sustainable Construction Management

R: Holdsworth 209 – T: +1 (413) 545-8863 – E: chaoxiao [Email address: chaoxiao #AT# umass.edu - replace #AT# with @ ]

Ph.D. (Construction Science / Architecture, Texas A&M, College Station)
M.S. (Construction Science and Management, Tongji University, Shanghai, China)
B.S. (Construction Engineering and Management, Tongji University, Shanghai, China), Minor in Law

Dr. Xiao’s research interests lie in the areas of decision-making in complex project environment towards life cycle sustainability, and decision science enhanced by advanced information technologies, such as Building Information Modeling (BIM). Dr. Xiao’s current research projects focus on systematic study of complex construction project delivery system, and decision making towards post construction sustainability (including facility operation and management). With years of research and working experience, Dr. Xiao has been working on developing a vision for decision-making towards life cycle sustainability that integrates planning, design, construction and operations of complex projects.



Last updated: September 7, 2016