ᐅ New Electrical and Water Pipes – What About Heating? How to Insulate According to Energy Saving Regulations

Good morning everyone,

I hope this is the right section of the forum.

I have a few questions about installing new water pipes – I’m grateful for any tips :-)

Here’s the situation: I inherited a house where the wiring needs to be completely redone – electrical, water, and possibly heating pipes. Since I have to replace all the floors anyway, I thought about laying the pipes under the screed. For this, I would use multilayer composite pipes. I noticed that these pipes are already available with insulation – but only meeting the 50% energy saving regulations. However, after some research, I found out that according to the energy saving regulations, hot water pipes in the floor must have 100% insulation.

How can this be achieved? Do I have to take the composite pipes that are already insulated and add additional insulation?

Thanks & regards, Rocky :-)

You don’t have to do anything yourself here, as it is neither permitted nor advisable.

No, you use pipes without insulation and have the plumber install them and insulate them 100%.

By the way, the energy saving regulations include a clause for everything that it must be economically viable, meaning it has to make some kind of financial sense (especially for renovations). So if 100% insulation is not feasible because the floor construction would be too thick, you are allowed to have 50% insulation installed instead.