For professionals in thermal bridge analysis


is a first class tool for building physicists, professionals and especially for designers and power users in façades, window constructions and architecture.

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Parameters in Curtain Wall Design

All important thermal characteristics of façades can be calculated easily according to standards EN ISO 10077-2 and EN ISO 12631.

Calculate frame U values and edge Psi values

To determine Uw and Ucw values of a window or a facade element in accordance with component assessment method.

Calculate joint U values or joint Psi values

To determine the Ucw value of a facade element in accordance with the simplified assessment method according to standard EN ISO 12631.

Prevent condensation and mold

Determine the minimum surface temperature to assess the risk of mould and condensate, taking into account of the air humidity.

Calculate U values and Psi values

Simple calculation of U and Psi values by means of mouse clicks and display of results with all underlying dimensions, parameters and formulas.

Validated according to EN ISO 10211 and EN ISO 10077-2

flixo is a validated thermal bridge program according to standards EN ISO 10211 and EN ISO 10077-2.

Examples of DIN 4108, Supplement 2

Contains all examples of DIN 4108, supplement 2 for the proof of equivalence.

Simple customization of layer thicknesses, adding or omitting of layers, change of materials and boundary conditions.

Thermal bridges for energy performance certification

Detailed assessment of thermal bridges for energy performance certificates like GEG, SIA 380/1, Energy Passport et al..

You can transfer the Psi value to any energy performance certification software.

Optimize thermal bridges

With flixo energy thermal bridges can be detected at the planning stage already and eliminated by changes to the design.

Consequently, structural damage will be prevented and heating energy will also be saved.