Make a plan for old building insulation - How to proceed?

The technical datasheet concerns the equivalent thermal conductivity, i.e., radiation insulation, not the thermal conductivity group of an insulating material. This can also be seen from the unit of radiation insulation = W·m−1·K−1 compared to the thermal conductivity = W/(m·K). For building materials, only the design value of the thermal conductivity may be used, as in the case of vacuum insulation. Therefore, the technical datasheet simply does not convey any meaningful information.

The images with the thermal imaging camera must have been taken before the renovation, since the profiles of the windows are warmer than the exterior wall... If PScoat is applied, the wall should theoretically be better.

A thermal imaging camera can be forgotten anyway, as these are only a temporary snapshot and have no significance due to the weather conditions. The observation would have to take place over a period of time and consider all external influences.

W·m−1·K−1 versus thermal conductivity = W/(m·K).

Sorry, but what is there to criticize? What, please, do negative exponents mean if not a fraction?

A thermal imaging camera can be forgotten anyway, . . .

If you want to criticize colleague Adam properly: Why can't thermal imaging cameras be meaningful? Because they only reflect one type of heat loss in terms of the laws of thermodynamics, namely radiative losses.

If you want to criticize colleague Adam, do it properly: Why can thermal imaging cameras not be conclusive? Because they only reflect one type of heat loss according to the laws of thermodynamics, namely radiative losses.

Thermal imaging cameras of course provide information, but it is not always as clear-cut as it often appears. The images always require a legend, as the color scale adjusts to the maximum and minimum temperatures depending on the settings. Therefore, the images always require interpretation. And as I have already written, I interpret the images from Adam’s report to mean that the window frame is better insulated than the walls after treatment with his miracle product, which should not be the case according to calculations. I am happy to be proven otherwise.