ᐅ How can you bypass energy-saving regulations and avoid bureaucratic hassle?

Primarily, the goal is to make surface temperatures or temperature differences visible.
A well-insulated wall, for example, will be close to the outdoor temperature, while the window is naturally less insulated and therefore appears yellow or red.
This is done in winter, as there are little to no temperature differences visible when it is 25°C (77°F) outside.

Peanuts74 schrieb:
Primarily, the goal is to visualize surface temperatures or temperature differences. A well-insulated wall, for example, will have nearly the same temperature as the outside air, while the window—naturally less insulated—will appear yellow or red. This is done in winter because there are little to no temperature differences visible when it’s 25 degrees outside.

Hi Peanuts74,

Ah, okay. Interesting.

What do you actually do with this information, or what conclusions can be drawn when you see the temperature differences during nighttime or cold periods?

For example, let’s say I have a house made of natural stone. We are talking about a wall here, which has no window or anything else!

This natural stone construction “insulates” the house according to energy-saving regulations without additional insulation. This wall appears warm/red in the evening and cold/blue during the day.

What can I conclude from this? For me, the usual takeaway seems to be: “Ah! The exterior wall is red/warm, so you’re just heating the street. In other words, add insulation!” Although everything is actually fine.

Thanks for your patience!

That doesn’t make any sense, neither that a natural stone provides insulation according to energy-saving regulations, nor that it is blue in the morning and red in the evening.

Apart from that, measurements are always taken in the morning.

The outside surface of the wall should always be cold in winter.
With thermal imaging (WBK), heat bridges are more easily detected. For example, with Ytong walls, you can see the intermediate floors, even if the edges are insulated, because the (non-insulating) concrete rests on them and the house is not completely "wrapped," like with sand-lime brick and polystyrene insulation.

ah ok. So, let’s summarize:

There is no natural stone option that insulates by itself according to the energy saving regulations.

So you have to combine the stone. Does an air cavity and a second layer of stone count towards that?

And the measurement is taken in the morning... But then the stone wall should be relatively cool and shouldn’t appear red/warm, right?

I feel like I’m going in circles…

How do you figure that? Place a pot of warm water outside in the garden once in the morning and once in the evening, and touch the exterior wall. It definitely won’t be cooler at night than during the day...