Manfred Kehrer

Senior Associate


Manfred Kehrer has been involved in researching, testing, and analysis of exterior envelope and concrete systems. He has helped develop WJE’s hygrothermal laboratory and computational fluid dynamics capability for analysis of building enclosures.

Prior to joining WJE, he was involved in the research and investigation of building science issues and developed analytical methods to advance the industry. He worked for more than twenty years at Fraunhofer IBP, Germany, in the area of hygrothermics and was group manager for software development where he was responsible for development, quality control, and sales of WUFI® products. Specifically, he was the Head of Development and Quality Control of WUFI® Pro 5.x and WUFI® 2D 3.x until 2011. Mr. Kehrer then worked as a senior building scientist at the Oak Ridge National Laboratory (ORNL) where he oversaw various types of research in building science. Following his work at Fraunhofer and ORNL, he was president of the start-up company justSmartSolutions LLC in the field of building science consulting until 2017. Since 2011, Mr. Kehrer has been the Official WUFI® Collaboration Partner for USA/Canada.

  • Medline Distribution Center - Auburndale, FL:  Field investigation to determine the cause of sweating slab syndrome
  • Major Fitness Club - Landsdale, PA: Numerical simulation to determine the cause of moisture accumulation and mold growth
  • Farmers Union GTA Building - Falcon Heights, MN: Computational Fluid Dynamics simulation on exterior wall assemblies to determine the impact of ventilation strategies on its hygrothermal performance
Professional Affiliations

American Society of Heating, Refrigerating, and Air-Conditioning Engineers
ASTM International


University of Applied Science, Munich
Dipl.-Ing., Technical Physics, 1993