Laying 15mm copper central heating pipes in floor screed

[Fredstudio]

Hey I need to run two 15mm copper pipes to get to a new raditor in a conservetry. I am hoping to run the pipes in the floor screed. I have heard denso tape can be rapped around the pipes to protect from corrosion. Is this enough protection for the pipes? Thanks for any help on this.

 

[Fredstudio]

or do I need to sleeve the pipes to allow the pipes to expand when heated?

 

[PlumbGas]

both schools of thought will be given to you however Denso tape is bloody awful stuff, go for channels it's cleaner and easier and in the future you can access them if needed, even if it means breaking up the screed. the other option will be to run plastic pipe through sleeves with no breaks under the screed if possible, not my choice but will do the job

 

[Fredstudio]

Yes I no its awfull gets everywere. Is it ok to bury copper just with denso tape though. Will this cause trouble as the copper won't be able to expand and contract?

 

[PlumbGas]

If your asking me then i'd say no as screed may get through and damage pipes causing leeks, i have seen and charged MUCH money to repair this type of install after ripping up customers floor. not a pretty sight, however what you do in your home is up to you in the end but be warned.

 

[beefster]

Would plastic pipes and the associated fittings be affected in same way as copper out of interest? May be a solution if not? Would asume it does as no one mentioned it?

 

[Bahco]

Do the job properly and grind out a channel in the floor and then cover the pipes with plastic trunking / guildflex etc,

Forget the denso tape.

 

[PlumbGas]

Do the job properly and grind out a channel in the floor and then cover the pipes with plastic trunking / guildflex etc,

Forget the denso tape.

Couldn't agree more

 

[mointainwalker]

Would plastic pipes and the associated fittings be affected in same way as copper out of interest? May be a solution if not

Plastic pipe is not affected by cement screed. UFH pipe is laid and then covered with screed to perform efficiently as an example.

You should not make any connections that are buried in the screed.

 

[Fredstudio]

thanks do they sell this chunking at plumbers merchants? Does it just screw down over the pipes then?

 

[Fredstudio]

I've had a look online. But how do I cover the pipe as it raises up towards the raditor as it comes out of the screed?

 

[dcawkwell]

Plastic pipe trunking. I would personally use plastic pipe in concrete.

 

[misterdubya]

Plastic pipe trunking. I would personally use plastic pipe in concrete.

 

[misterdubya]

I've had a look online. But how do I cover the pipe as it raises up towards the raditor as it comes out of the screed?

You use Denso

For gods sake, can you forget the plastic approach.

 

[Fredstudio]

Is useing denso to protect the pipes realy nt accptable then? I mite look at surface mounting them.