Interior insulation

Particularly in the case of listed buildings or elaborately designed facades, this is a way of increasing the surface temperature, thus preventing renewed mould growth and additionally improving the insulation value of the exterior wall.

ISOTEC interior insulation

Better air with interior insulation

Our approach to interior insulation:

Uninsulated exposed facades

The cause: Uninsulated exposed façades.

Insufficient insulation of exterior walls causes the interior rooms and wall surfaces to cool down. The consequences are an uncomfortable living climate, the risk of mould growth and increased energy demand when trying to raise the room temperature again.

Preparation of the walls to be renovated

01 Preparation

Initially we carefully clean the surface, removing wallpaper and paint. We eliminate any mould infestation professionally.

Installation of the interior insulation

02 Installation of the interior insulation

We place a special adhesive mortar to bind the high diffusion insulation plates to the wall surface.

 Finishing the surfaces with a system plaster

03 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.

Our satisfied customers

Interior insulation

Moisture-regulating and mould-inhibiting

Moisture-regulating and mould-inhibiting

Thanks to the capillary conductivity of our ISOTEC Interior Insulation, there is no need for a vapour barrier. The interior insulation absorbs excess humidity from the ambient air and releases it when the air humidity falls again.

Insulated walls positively influence our well-being

The non-insulated walls not only negatively impact the comfort of the interior environment, but also reduce the ambient temperature and surface temperature of the walls, which favors the growth of mould. A subsequent insulation with our ISOTEC Interior Insulation provides a pleasant interior environment, prevents mold formation and maintains ambient temperature in isolated spaces.

Insulation from the inside is an alternative not only for listed buildings

Even in buildings that are not listed, interior insulation makes perfect sense. This way, the façade remains untouched. Furthermore, the cost of subsequent insulation from the inside is usually much lower and also more cost-effective, as it is not necessarily necessary to insulate the entire façade. For example, in the case of damp and mould in some rooms, only partial renovation is possible. A measure for insulation and renovation from the inside also has the advantage that, in addition to the façade, the new garden or the adjacent garage remain untouched during the renovation. Although renovating and insulating the façade from the outside would certainly be the best choice from a building physics point of view, your house is also effectively protected against moisture with interior insulation. We use interior insulation in the course of removing mould damage.

ISOTEC quality

ISOTEC only uses systems that have been proven to meet practical and official requirements. This also applies to the building physics properties of the ISOTEC interior insulation system, which has been extensively tested scientifically and practically in terms of protection against moisture, mould infestation and insulation properties. All renovation work on your house or wall is carried out by our intensively trained employees.

Your advantages at a glance

  • Measure for insulating from the inside without changing the appearance of the façade
  • Rapid heating of the insulated rooms
  • Prevention of renewed mould growth on the insulated walls
  • Pleasant room climate
  • Individual design options for the wall surface
  • Pure mineral and non-combustible building material

FAQ Interior insulation


for internal insulation