Mr. Daniel Lemieux, AIA

Principal and Director International Operations,
Wiss, Janney, Elstner Associates, Inc.

Contact Details

Wiss, Janney, Elstner Associates, Inc.
Falls Church, VA


Since joining WJE in 1996, Daniel Lemieux has successfully completed hundreds of projects in the area of building enclosure failure investigation, repair design, and architectural rehabilitation, including projects that have been recognized both locally and nationally for design and restoration excellence. He has authored, coauthored, and peer reviewed a wide range of technical papers on Building Enclosure Commissioning (BECx) and is Chairman of ASTM Sub-Committee E06.55, Performance of Building Enclosures, and the Task Group responsible for the development and the publication of ASTM E2813-12, Standard Practice for Building Enclosure Commissioning.

Since 2005, Mr. Lemieux has served as an author, coauthor, and contributing editor during the development of the Exterior Wall chapters of the web-based Whole Building Design Guide on behalf of the National Institute of Building Sciences (NIBS) and was a member of the original committee responsible for the development of the original NIBS Guideline 3: Exterior Enclosure Technical Requirements for the Commissioning Process. As Chairman of ASTM E06.55, Mr. Lemieux facilitated the establishment of a joint agreement between ASTM and NIBS to develop a Building Enclosure Commissioning Certification and Training Program, and served on the committee responsible for the development of ASHRAE Standard 202, The Commissioning Process for Buildings and Systems.


Georgia Institute of Technology
Atlanta, Georgia, United States
Bachelor of Science, 1988
1984 To 1988

Job History

Wiss, Janney, Elstner Associates, Inc.
Principal / Unit Manager
Washington, DC, United States
May 1996 - present


  • Architectural Design
  • Commissioning
  • Design-Build
  • Historic Preservation
  • Observation Services
  • Sustainable Building Design


  • American Society for Testing and Materials (ASTM)
  • American Society of Civil Engineers (ASCE)
  • American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
  • Construction Specifications Institute (CSI)
  • National Institute of Building Sciences (NIBS)