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Title: WUFI (Wärme and Feuchte Instationär)-Oak Ridge National Laboratory (ORNL)/Fraunhofer IBP

WUFI - Oak Ridge National Laboratory (ORNL)/Fraunhofer IBP is a menu-driven PC program which allows realistic calculation of the transient coupled one-dimensional heat and moisture transport in multi-layer building components exposed to natural weather. It is based on the newest findings regarding vapor diffusion and liquid transport in building materials and has been validated by detailed comparison with measurements obtained in the laboratory and on outdoor testing fields. Together with Oak Ridge National Laboratory (ORNL) Fraunhofer IBP has developed a special version of WUFI ® for North America. WUFI® ORNL is a functionally limited free version of WUFI® Pro for non-commercial purposes. It contains climate data for 62 cities in the USA and Canada which are all available in the free version.
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R&D Project: FWP MDGA516-37
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Open Source Software package available from Oak Ridge National Laboratory at the following URL:
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For more information, please contact: Drs. Achilles Karagiozis and Manfred Kehrer at: Phone: (865) 576-3924; Fax: (865) 574-9354; E-mail:
Research Org:
Oak Ridge National Laboratory
Sponsoring Org:
United States Department of Energy
Country of Publication:
United States

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