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The menu-driven PC program WUFI (<B>W</B>ärme <B>u</B>nd <B>F</B>euchte <B>i</B>nstationär - Transient Heat and Moisture),
developed by <A HREF="http://www.hoki.ibp.fhg.de">IBP and validated using data derived from outdoor and laboratory tests, allows realistic
calculation of the transient hygrothermal behaviour of multi-layer building components exposed to natural climate conditions.
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WUFI is based on the newest findings regarding vapour diffusion and liquid transport in building materials.
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WUFI only requires standard material properties and easy-to-determine moisture storage and liquid transport functions.
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WUFI can use measured weather data - including driving rain and solar radiation - as boundary conditions, thus allowing realistic investigations on the
behaviour of the component under exposure to natural weather.
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WUFI can be used for assessing
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<LI>the drying time of masonry with trapped construction moisture</LI>
<LI>the danger of interstitial condensation</LI>
<LI>the influence of driving rain on exterior building components</LI>
<LI>the effect of repair and retrofit measures</LI>
<LI>the hygrothermal performance of roof and wall assemblies under unanticipated use or in different climate zones.</LI>
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WUFI is a tool for developing and optimising building materials and components. For example, it was used as a development tool for the
<A HREF="http://www.hoki.ibp.fhg.de/ibp/produktentwicklung/dampfbremse/dampfbremse_e.html">smart vapour retarder</A>.
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WUFI is directed at manufacturers of building products, consultants, designers, engineering offices and experts in the field of hygrothermics.
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WUFI may be used as a teaching aid or advertising tool because of the instructive visualisation of its calculation results.
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WUFI runs on PCs under Windows 3.1x, 95/98 and NT. The comprehensive on-line help and documentation amounts to ca. 200 A4 pages; printed short
instructions are included. WUFI is available in a German or an English version.<BR>
Proper application of WUFI requires experience in the field of hygrothermics and some basic knowledge in the use of numerical calculation methods.
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Our website offers detailed information on WUFI and its application. However, our site uses frames, and if you
are seeing this text, your browser does not support frames. We would suggest the use of a frames-capable browser
in order to gain easier access.
Here is the emergency entrance:
<A HREF="http://www.hoki.ibp.fhg.de/wufi/intro_e.html">WUFI</A>
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