The ISOTEC Group
Interior Insulation
ISOTEC Innendämmung Arbeitsschritt anbringen


In the case of listed or laboriously designed building façades,
the only option to improve the heat insulation of
exterior walls is to insulate from the inside.

Better air with interior insulation

Our approach to the internal insulation:

The cause: bad heat insulation of visible façades

Insufficient heat insulation of exterior walls leads to increased heat loss. The consequences are increased energy consumption, uncomfortable room climate and a risk of mould infestation.

Our 1st step: Preparation

Initially, we carefully clean the surface of wallpaper and paint residues. In the case of mould infestation, we remove the mould professionally.

ISOTEC Innendämmung Arbeitsschritt anbringen

Our 2nd step: Installation

We first apply a special adhesive mortar in order to attach the heat-insulating and diffusion-compatible boards to the surface.

ISOTEC Innendämmung Arbeitsschritt veredeln

Our 3rd step: Refinement

Finally, we revise the surface with a special putty in which is incorporated a reinforcement fabric. With the optional final skim we provide a smooth and even wall surface. This surface can be painted to taste.


Non-insulated walls may not only interfere with the comfort of a room but also lead to increased energy consumption. The subsequent heat insulation with our ISOTEC Interior Insulation provides a comfortable room climate as well as energy savings.


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