Pipe lagging for radiator pipes set in plaster

[Feebs]

Hi,

My plumber chased some radiator pipes into my masonry wall and has left it to me to cover up - which I will do with plaster filler.

However - he hasn't put any protective cover on the pipes.

He suggested I get denso tape and wrap it round the copper pipes - but denso tape has a melt point of about 60 degrees celcius - so not really suitable around hot radiator pipes.

Can anyone advise on what type of tape or lagging I need to put around the copper pipes before plastering over?

Thanks in advance.

 

[ShaunCorbs]

Waterproof duct tape I use

 

[townfanjon]

Not ideal in a wall , but denso would be ok IMO

 

[Feebs]

not sure denso or waterproof duct tape can be used around really hot copper pipes.
how about pipe lagging? Is this for hot radiator pipes?
Economy Pipe Insulation 15mm x 13mm x 1m

 

[ShaunCorbs]

not sure denso or waterproof duct tape can be used around really hot copper pipes.
how about pipe lagging? Is this for hot radiator pipes?
Economy Pipe Insulation 15mm x 13mm x 1m

Chase would end up too deep as it's 13+15+13

So that's close to 1 3/4" deep

And I haven't seen it peal when hot

 

[Feebs]

Chase would end up too deep as it's 13+15+13

So that's close to 1 3/4" deep

And I haven't seen it peal when hot

Do you know any thinner alternatives to pipe insulation? and suitable for hot pipes?

 

[ShaunCorbs]

Do you know any thinner alternatives to pipe insulation? and suitable for hot pipes?

Other than 9mm no 10mm pipework your stuck as they don't make insulation for

 

[Ric2013]

Felt lagging?

 

[Feebs]

Felt lagging?

was thinking of felt lagging - but also need to waterproof the pipe and felt lagging with something else - before putting wet plaster on it.

 

[ShaunCorbs]

Felt lagging?

Can seep through

 

[Feebs]

My plumber said he uses duct tape and denso tape on heating pipes

 

[Best]

Not the worst job to just do with sheet of polythene cut into strips of 4" wide and wrapped up like a bandage with double wrap (overlap) and electrical tape to secure the ends. Ordinary dry wall will not do pipes any harm then and it allows slight expansion movement

 

[ShaunCorbs]

Not the worst job to just do with sheet of polythene cut into strips of 4" wide and wrapped up like a bandage with double wrap (overlap) and electrical tape to secure the ends. Ordinary dry wall will not do pipes any harm then and it allows slight expansion movement

Won't they sweat ?

 

[Best]

Won't they sweat ?

Doesn't seem to do the pipes any harm.
I wouldn't advise anyone doing it that method in a wall that tends to be always damp, but on a wall that is to dry out it just keeps the cement etc from contacting the copper and allows the pipe lengthways expansion movement.
I much prefer pipes inside round conduit where possible though

 

[king of pipes]

Depends on the depth but with mimimum cover i would use aluminium foil tape , armaflex do waterproof insulation but i am guessing it would be to thick for this job . cheers kop

 

[Feebs]

Depends on the depth but with mimimum cover i would use aluminium foil tape , armaflex do waterproof insulation but i am guessing it would be to thick for this job . cheers kop

I did a bit of research and armaflex or Reemo do a thin protective insulation tape. Both perform at high temperatures. Not sure if they are suitable for being buried in wet plaster....

https://www.amazon.co.uk/gp/product/B074QSDTRM/ref=ox_sc_act_title_1?smid=APCCEBV4WO30B&psc=1

https://www.amazon.co.uk/gp/product/B0069R66BA/ref=ox_sc_act_title_2?smid=A1QKFATOCKF26&psc=1

 

[ShaunCorbs]

Yes there both fine in plaster