Heating pipe bent too much?

I commissioned him for all service phases, so roughly after the roof/windows it stopped for me as well, but that is a big mistake, 3, yes exactly 3 windows were installed crookedly and 1 cannot be tilted open, if I had not noticed or remeasured it would not have been repairable after the plaster and in my opinion the architect must check that.

I have commissioned him for all service phases,

Incl. 8 + 9? Rhineland greetings

Moin Moin

now just take a deep breath first.....

all three mentioned pipe types are oxygen-tight according to the requirements of underfloor heating.
the composite pipe because of the aluminum core,
the XC pipe with a middle barrier layer
the RT pipe with an outer barrier layer

None of the pipes are comparable to those from the 70s.

The installation is not that bad after all, depending on the floor plan it is not possible to lay large areas in some corners.
I would also not cut out the shown kink and fit it with 2 couplings as long as there is no milky white discoloration at this point, but carefully increase the bending radius again.
And then everything is fine.

Olli

so update, the couplings were installed unfortunately without protective tubing and press couplings instead of the agreed sliding sleeve connections, sometimes I really think people just want to mess you around on the construction site, they really do whatever they feel like.

Get it in writing that the connection lasts for decades and is approved.

And put a piece of hose or something over it yourself.

Get it in writing that the connection will last for decades and has an approval.

And put a piece of hose or something over it yourself.

...Decades....well then let's hope the craftsman never plans to retire