CAD-editor with extensive processing options

WINISO® offers extensive CAD-functions, for an easy and fast editing of CAD-files. The operation to this is very simular to the widely used CAD-programs. To the newest Version of WINISO® a CAD-Editor is connected.

With the Editor the user is able to handle drawings with different tolls very easily in the usual file formats .dwg and .dxf. After changing the drawing it is possible to save it again as a CAD-file.


The handling for the changing is similar to the common CAD-software. It is also possible to import three-dimensional components into the new WINISO®. Furthermore the software is able to generate 3D-componentes into two dimensional pieces. In the next step calculation could start.


Powerful calculating engine with a high level of automation

The powerfull FEM-calculating engine is able to give precise calculation of complex components. The networking of finite Elements is made completely fully automatically with the possibility of manual settings and optimizations. Radi and angels are not turned into horizontal and vertical lines as usually done. Instead of doing this with the FEM-mesh the details could be very exactly reproduced to the drawing. Short time of calculation and a high level of exactness are the result of this innovative calculating engine.

 High level of automation

The calculation of the FEM-mesh is not the only thing which is done completely automatically by WINISO®. Including a large number of algorithm and functional processes the software is one of the most effective tools to calculate thermal and construction values. While calculating the editor is always able to choose between different accurate settings.

Also an automatically CAD preparation is included in the new WINISO®. Errors which are attached to the drawing will be automatically detected and solved by using different functions. Caused by combination of automatically preparation and using different functions a manually preparation of the CAD drawing is not necessary.

Furthermore it is also possible to choose manual editing options for an individual adjustment. The intuitive interface of the program help the user to save a lot of time by using these options.

Another important new Option is the automatic detection of material. If the name of the layer structure which is used in the CAD drawing is the same as used in the extensive material data base of WINISO® the areas could be filled automatically with right material. It is also easy to bring some special materials to the data base just by giving some less parameters to the program.

EN ISO 10077-2 Preparation

EN ISO 10077-2, such as the ≤ 2mm cavities, the slightly ventilated cavities or even the corners with increased heat transfer resistance are automatically implemented by the software.

What is changed by introducing the ISO 10077-2:2017?

By introducing the new ISO 10077-2:2017 one of the things which has changed most is the process of calculation heat flow in cavities of Window and facade profile. As an alternative to the simplified model of equivalent heat conductivity the new standard defined a new model which is using detailed heat radiation. This heat radiation model is named „Radiosity”.

EN ISO 10077-2 preparation with cavity model

WINISO® analyses and edits the drawing not just automatically related to the valid standard DIN EN ISO 10077-2:2012, also the detailed radiation model „Radiosity” by the new ISO 10077-2:2017 is included. So you are able to calculate parameters like the Uf by using the old standard of 2012 as well as the standard of 2017.


The temperature factor, called fRsi factor, is a criterion for the risk of mould growth with a wall connection (connection of a window to the adjoining wall) and is based on DIN 4108-2. The factor should reach at least 0.70 so that no mould can develop under standard conditions. The fRsi value is determined at the point of the minimum surface temperature.


The temperature fields display shows the surface temperature in the individual surfaces of a component in color. The colour representation is in the range of values between 0° C and 20° C.

material fields

The generated surfaces of a component can be assigned materials from the material database in WINISO® with the corresponding material colors or hatches using various functions. The material fields display shows the materials assigned to the part in color.

heat flow

The heat flow indicates how much heat flows through a construction per time. The cause of the heat flow is a temperature difference. The heat flow through the enveloping surface of a heated building is proportional to the temperature difference between inside and outside. Heat flow fields in WinIso® show where the improvement potential of the component in terms of heat transfer lies.


Isotherms are curves of the same temperature that show the quality of a component with regard to the loss of condensation and the risk of mould. The 10 °C and 13°C isotherms are striking for condensation and mould formation.


For our expert software WINISO® for the calculation of heat flows, thermal bridges, isotherms and Uf values according to EN ISO 10077-2:2018 the add-on “Humidity” is available for the calculation of relative humidity, vapour diffusion and condensation water failure.

The following evaluation modes are available with the “Humidity” add-on:



Relative humidity fields

The display provides information about the quality of the profile/component. The darker the spots in the profile, the greater the relative humidity, i.e. the risk of condensation. The calculated value Psat is the saturation vapour pressure at the point in the component. It is temperature-dependent and indicates the maximum amount of water the component can absorb in Pa at the respective point.

Pi is the partial water vapour pressure at the respective point. The partial pressure is adjusted by the boundary conditions and the heat transfer in components and cavities. If the partial pressure exceeds the saturation pressure, the component is “supersaturated” at the point in consequence condensation water precipitates.



Vapour diffusion flow fields

It shows how much water in g/m*d flows through a component. The water vapour flow runs through a component in the same way as the temperature curve. This means that the water vapour flows along the partial pressure gradient from high to low. The resistance number μ is decisive for the diffusion current through a component. The larger the number, the more impermeable the building material is.



condensation loss

If the partial pressure Pi exceeds the saturation vapour pressure Psat, condensation occurs in the profile. Common causes are low temperatures and low diffusion resistance figures μ of the individual components. Places where condensation precipitates are marked in blue.


ISO 15099

Our expert software WINISO® has been extended by the calculation according to the American standard ISO 15099. The “ISO 15099” add-on is available for this purpose. With the add-on “ISO 15099” the relevant calculations of Ufr-, Ueg- and Ucg-calculations according to ISO 15099 and NFRC can be carried out. Once the calculation is complete, you can generate the printout specifically for ISO 15099 and receive a list of the materials used. The calculation results with the corresponding Imperial units are also specified.