New electricity & water lines - heating as well? How to insulate according to the energy saving regulation

Good morning everyone,

I hope I am in the right section of the forum.

I have a few questions about laying new water pipes - I am grateful for any tips :-)
It is about the following:
I inherited a house where the pipes need to be redone. Electricity, water, and possibly heating pipes.
Since I have to redo all the floors anyway, I thought I would simply lay the pipes under the screed. For this, I would have used multilayer composite pipes. I have seen that these already come with insulation - but "only" 50% energy saving regulation. Now I have researched online and found out that hot water pipes in the floor must have 100% insulation according to the energy saving regulation.

How can this be achieved? Do I have to use the composite pipes that are already insulated and insulate them again?

Thanks & best regards Rocky :-)

You don't have to do anything yourself because it is neither permissible nor advisable.

No, you take cables without insulation and have them installed by the paramedic and insulated 100%.

By the way, the Energy Saving Ordinance has a clause for everything that it must be economically feasible, so it has to be profitable in some way (in renovations). So if 100% insulation doesn't work because the floor structure is too thick, you are allowed to have 50% installed as well.