ᐅ Polystyrene Insulation Under Screed and Underfloor Heating – What Is the Correct Product Called?

I need a polystyrene insulation that goes under the screed and above the underfloor heating pipes.

The staff at Bauhaus really don’t know what they’re talking about.

What is the exact name for this? Do you have any links?

First comes the EPS insulation, then a rolljet is installed, and on top of that, the underfloor heating pipes are laid.

Screed insulation panels or floor insulation under screed?

How do you come up with the idea to buy something like that at Bauhaus? Don’t you have a building materials supplier in your area? They are often even cheaper in some cases. Otherwise, try the online building materials retailer whose name ends with 24.

sisqonrw schrieb:
I need a type of polystyrene insulation that goes under the screed and above the underfloor heating pipes.

There should be no insulation in that position.
Under the heating pipes, you need impact sound insulation, and below that regular EPS (expanded polystyrene).
Putting insulation above the heating pipes wouldn’t make much sense ;-)

EPS is, however, insulation.

sisqonrw schrieb:
I need a polystyrene foam that goes under the screed and above the underfloor heating pipes.

Is this for a basement room with underfloor heating?