External insulation

External insulation is the most common, physically the most straightforward, and usually also most effective option. In this case, insulation is applied to the outside of the external wall, e.g. with an ETICS (external thermal insulation composite system) or a curtain wall with cavity wall insulation.

What is the physics of buildings?

Physics of buildings deals with physical processes in buildings. It is concerned, among other things, with heat, moisture, fire protection and sound, and serve.

For a highly efficient external insulation, insulation layers 20 to more than 30 cm thick are technically feasible.