flixo functionality

The program is divided into a modeling and a computation/evaluation section. Whereas the modeling section defines the physical situation (geometry, boundary conditions,materials), in the evaluation section the results are quantified and presented graphically. Due to the well-proven and time-saving template model, individualized results reports are produced automatically and are dynamically updated during a renewed computation.


  • The integrated and expandable component library of flixo enables components to be simply transferred using the mouse (drag & drop) into the current design.
  • Layers: Objects can be arranged on various layers and the layers can be selectively superimposed, masked out, printed and frozen.
  • Snapping aids: Objects can be aligned with various auxiliary objects such as auxiliary lines, grids and special points on adjacent objects.
  • Associative elements such as local results and isothermals.
  • Mouse and keyboard-controlled input.
  • Geometrical operations such as grouping, merging, cutting, differences between objects.

Material data base with more than 1000 materials from various standards (EN ISO 12524, EN ISO 10077-2, EN ISO 673, EN 6946, DIN 4108-4)


  • flixo-resultatIsothermals and false-color images of any building detail for qualitative thermal assessment and optimization.
  • Temperatures at freely determined design points.
  • Heat flux density at freely determined design points.
  • Minimum and maximum surface temperatures at freely determined design boundaries and critical room humidities for the assessment of possible mildew formation and condensation problems.
  • Heat flow at freely determined boundary lines.
  • Thermal transmission coefficient (“k value”) and length-related thermal transmission coefficient (“psi value”) for the quantification of the thermal bridging effect.
  • Automatic computation of framework k values


  • Computation of temperatures according to the finite element method (triangular elements); iterative solution of the arising system of linear equations using an optimized, conjugated gradient technique.
  • Automatic grid pitch reduction at critical points.
  • Computation of equivalent thermal conduction coefficients for air cavities and automatic subdivision of air cavities according to EN ISO 10077-2.
  • Unrestricted number of nodal temperatures (depending on the hardware used).
  • Consideration of materials with orthotropic material properties.

flixo is optimally integrated into the Windows environment and makes use of the familiar methods

  • Cut/Paste and Insert as well as Undo/Restore of the last actions.
  • Different flixo documents can be edited in parallel.
  • Interchange of flixo data (design details, results) via the clipboard or using drag & drop. For example, results can be integrated directly in a Word document or copied or moved from one design to another.
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 E-Mail: support@cad-plan.com

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