using plastic pipe in a new house concrete floors

[AWheating]

any tape applied to plastic pipe must be ok'ed by pipe manufacture otherwise you can loose the warranty. Had this problem with applying metal tape to plastic pipes in walls to allow detection as per nhbc regs. Manufacture will not allow it unless the material/adhesive has been tested not to react with pipe compound.
Anyway no tape needed when using pipe in pipe system. I would not have fitting in floor though, bad idea unless using undefloor heating pipe and fittings like uponor. There alu/barrier pipe is great.

 

[Japnut04]

I used the pipe in pipe in my own house but just chased the wall where the pipe had to come up, i was fit to bring the pipe up the wall witout any fitting and just put on an elbow to come out to the rad valve - in copper.

 

[Spike295]

THE PLASTIC IS IN INSULATION THE DENSIL IS AROUND IT WHY WILL IT REACT? i THINK DENSIL IS BETTER FOR PLASTIC THAN CONCRETE DONT YOU? COME ON THINK ABOUT IT

Plastic pipe will not be affected by concrete, cement or mortars. Surely its common sense that whatever pipe you decide to use, its best not to bury any fittings under concrete or screed weather taped in DENSO or not!!!

 

[Bartdude]

Use a professional system like Uponor or be one of the Hep/Speedfit merchants.

Your choice.

 

[Gray0689]

ok proffeser gray you can put plastic in concrete all day long if you like but you trying to tell me that if say it is heating pipes with push fit fittings that way expansion and contraction those pipes wont burst? ok rocket scientist you do that if you want i wont.
and as for under floor heating I am not going to pretend to know lots about as i dont but if this is allowed to go under screed or what ever i can gaurantee you it will be a different grade of plastic with the push fit fittings placed in allowable areas.

didnt you learn at college or did your 6 week course teach you nothing co efficient linea expansion I thought a rocket like you would no this

Lol think you need to refresh at your collage lol your not very clued up wee lad

 

[Gray0689]

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[yorkieplumber]

Like it Bartude you cant beat quality, fit and forget and no come backs, so for me works out cheaper no call backs, wish more stuff on market like this, there is a lot of rubbish out there.

I've seen it done before but I just don't like the idea of it. I use Uponor MLCP pipe with crimped fittings,more expensive but fit and forget.

Hep doesn't use the green grab rings anymore though,it's white now too.