Plastic pipe for downstairs radiators.

[pugsman0]

3 Questions
1, If i use plastic pipe for my new downstaris radiators, what is the correct method of instaling a the"T" junctions on the flow and return. The pipes will be in the screed?

2, My understanding is that with copper no compression joints are allowed underfloor. is this the same for plastic?

3, If i use copper how should I protect it from the cement?
Many thanks

 

[petit_pablo]

3 Questions
1, If i use plastic pipe for my new downstaris radiators, what is the correct method of instaling a the"T" junctions on the flow and return. The pipes will be in the screed?

Use a T piece connector

2, My understanding is that with copper no compression joints are allowed underfloor. is this the same for plastic?

Only on gas is this the case

3, If i use copper how should I protect it from the cement?

In a duct within the screed

 

[andytheplumber]

denso tape