Procedure for denso tape around copper pipe

[P.Pipe]

Hi, many forum posts and my local plumbers merchant have advised to wrap copper central heating pipes in Denso tape before screeding over them.

I'm trying to work the best way of wrapping the pipes. All the pics I can find online of denso tape are massive industrial pipes, not small radiator pipes. So I'm wondering what the best way of doing it is...

Has anyone got any tips for wrapping the tape please?

The tape I have is 50mm X 10m (like https://www.travisperkins.co.uk/Denso-Tape-Synthetic-Fibre-50mm-x-10m/p/480861).

Cheers!

 

[Dan Robinson]

Spiral it round with a 50 %overlap.

 

[DP]

Spiral it round with a 50 %overlap.

Dan, in screed will pipe expansion not be a factor to consider i.e. if pipe run is long

 

[Dan Robinson]

It's stretchy stuff

 

[Nige F]

Is the screed deep enough to use foam pipe lagging instead of denso - it's so 20th century

 

[Terrywookfit]

Don't forget to work all the grease into the fabric.

 

[ianmcd]

Don't forget to work all the grease into the fabric.

My favourite job when I was an apprentice.

 

[Jackrae]

Is the screed deep enough to use foam pipe lagging instead of denso - it's so 20th century

Foam prevents heat loss, Denso prevents corrosion

 

[Hot&Cold]

it's so 20th century

Yes indeed and denso is still around,great stuff

Prefer pipe conduit now thou, http://www.johnguest.com/speedfit/product/pipe/jg-layflat-polybutylene-pipe-in-coils/

 

[oilboffin]

I must have done miles as an appo.Bob

 

[FiremanT]

My advice: wear gloves

 

[Dan Robinson]

Or get an underling to do it

 

[P.Pipe]

Thanks all for the tips! I shall have a go, with gloves on

 

[bernardgreen]

in screed will pipe expansion not be a factor to consider

Yes, it is, when the pipe ends are not able to move a few millimetres to allow the pipe to expand an contract the strain on joints can over time create leaks. For example elbows at the end of long straight runs with the vertical pipes held rigidly by the screed will not allow for expansion and contraction.

 

[GoferBlue1947]

Ah Denso tape. Disgusting stuff to handle but does a marvellous job in the event of slight leakage from underground foul water joints e.g. clay to plastic!