Survey on the use of hygrothermal simulation software in everyday life

You know mould, thermal bridges, algae and frost damage from your daily planning and building practice?

Simplified methods such as thermal bridge calculations or the glazing method are available as verification procedures. Increasingly, however, simulation programmes such as WUFI or DELPHIN are also being used.
From our experience, planners are often uncertain about which verifications are necessary and useful, how simulation calculations are correctly evaluated, but also about the reliability of the input data and the results of such methods.

In order to eliminate these uncertainties, various verification methods are being investigated, evaluated and further developed in a current research project. The TU Dresden with the Institute for Building Climatology and the Fraunhofer Institute for Building Physics Holzkirchen are involved.

In doing so, the reference to practice is particularly important to us. That is why we are asking for your input in an online questionnaire. Answering the questions takes about 5 to 10 minutes.

You can access the survey under the following link: survey

Our aim is to clarify the advantages and disadvantages of the current methods and, where appropriate, to provide new, practical methods also for damage detection of mould, algae and frost.

Thank you for your cooperation!

Frost damaged bricks
Frost damaged bricks
Hygrothermal simulation of a detail on the window lintel
Hygrothermal simulation of a detail on the window lintel

WTA guidelines now also available as online subscription

Contents of the subscription

The guidelines of the Wissenschaftlich-Technische Arbeitsgemeinschaft für Bauwerkserhaltung und Denkmalpflege e.V. (WTA) (Scientific and Technical Association for the Preservation of Buildings and Monuments) explain practice-oriented procedures for the repair of existing buildings and the renovation of historic building fabric. The guidelines are divided into the following Technical Commissions:

  • TC 1 Timber and Timber Protection
  • TC 2 Surface Technology
  • TC 3 Natural Stone and Artificial Stone
  • TC 4 Water Proofing
  • TC 5 Concrete
  • TC 6 Building Physics
  • TC 7 Structural Behavior and Damage Diagnostics
  • TC 8 Half Timber and Timber Construction
  • TC 9 Metal and Glass
  • TC 10 Preventive Conservation
  • TC 11 Fire Protection

 The guidelines are also structured by Technical Commission within the online subscription (selectable via categories) and contain both the final versions of the guidelines and the drafts.

The subscription includes all current German and English WTA guidelines (currently over 80).

Your advantages

Vor dem Abschluss des Abonnements können

  • automatic updating
  • intuitive operation
  • convenient search function
  • comments, images and voice notes (so-called annotations) possible
  • also available as an app for smartphone and tablet - without additional costs
  • can be used both online and offline
  • Contents can be printed out if required
  • Push messages inform about news

Before subscribing, you can test the application without obligation by means of a free guidelines at or in the app "WTA-Merkblätter" (annotations possible to a limited extent).

Technical details

Thanks to the user account, you only need a web browser for the desktop application - the use is therefore independent of the operating system, an installation is not required. For optimal handling on tablet and smartphone, the free "WTA-Merkblätter" app is available.


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