WUFI® is a family of software products that allows realistic calculation of the transient coupled one- and twodimensional heat and moisture transport in walls and other multi-layer building components exposed to natural weather. WUFI® is an acronym for Wärme Und Feuchte Instationär—which, translated, means heat and moisture transiency. WUFI® software uses the latest findings regarding vapor diffusion and moisture transport in building materials. The software has been validated by detailed comparison with measurements obtained in the laboratory and on IBP’s outdoor testing field.
Component simulation and building simulation
The various versions of the WUFI® software family perform coupled heat and moisture calculations under local climate conditions and for materials, multilayer components, and even whole buildings. Through WUFI® simulation of heat and moisture transport, users can, while still in the planning phases, optimize designs and identify risks and problems.
Literature
The fundamentals required for practical application of heat and moisture transfer calculations and the application of WUFI® software for building physics investigations are presented in numerous publications by staff at the Fraunhofer Institute for Building Physics (IBP) and by other institutions. The numerous examples of applications that use WUFI®, together with many publications on the topic of hygrothermics, are located here.
Instruction manuals and handbooks
This link leads to numerous instruction manuals and handbooks for users who are just starting with WUFI®, as well for advanced users with specific questions.
Workshops
The Fraunhofer Institute for Building Physics offers general workshops on WUFI® at regular intervals. There is one workshop for WUFI® beginners and for those with a general interest in WUFI®, and there is another workshop for existing users who want more advanced training. There are separate workshops that focus on WUFI® 2D, WUFI® Plus, and WUFI® Passive. Since WUFI® developers themselves teach the workshops, a high quality experience can be expected.
News
WUFI® Plus Video Workshop now available
October 14, 2025
Our WUFI® Plus video is available now. Step into WUFI® Plus with this recorded English lectures of our workshop.
The films cover the basics and use of building simulation with WUFI® Plus, as well as the knowledge required to start over. In addition to he presentation, there are so-called "HandsOn" sessions showing the procedure in the software directly. When you purchase the workshop, you will also receive access to the presentations as pdf and other materials.
The following topics are included:
morePlaces still available in our next online workshop
June 6, 2025
Next online workshop WUFI® Pro Heat & Moisture Simulation Workshop will take place on June 25th and 26th 2025 . Book now!
Release WUFI® Pro 7
March 5, 2025
Hygrothermal simulation in a new guise! The new version 7 of the hygrothermal simulation software WUFI® Pro is now available.
The user interface of WUFI® Pro has been completely redesigned to provide you with an even easier and more intuitive operation.
You can find an overview of the new features here: What's new in WUFI® Pro 7.
WUFI® Pro 7 is now available in our online shop.
moreRelease WUFI® Plus und WUFI® Passive 3.5
October 17, 2023
New versions of WUFI® Plus 3.5 and WUFI® Passive 3.5 are now available.
Users of WUFI® Plus 3.x and WUFI® Passive 3.x can download the update free of charge. You can find the corresponding link in your account in our online shop under “My Orders”.
If you buy new, you will receive the new versions directly.
moreWUFI® Plus Workshop
July 27, 2023
Our WUFI® Plus workshop is planned on 27th and 28th September online in English.
In this workshop you will get a detailed introduction to the handling of WUFI® Plus and work on projects by yourself from the input to the presentation of results and evaluation.
For further information please visit here https://wufi.de/en/service/workshops.
Register now!
Registration by mail
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