Do chased in radiator pipes need to be insulated?

Right mess!

Is that 10mm micro bore copper pipe?
Usually I would wrap copper pipes with Denso tape if they are being plastered or cemented over.

 

Looks as though the chase is deep enough for clips. I agree with Kiab - a right royal mess - makes us DIYers feel better. Why not plastic as its corrosion proof?

 

Must be a better solution, not a fan of burying copper pipes regardless of size in walls.

 

sorry but it does look a bit gash! Any joints being buried?

 

A disaster waiting to happen!

 

Light switch drop is a lash up without conduit,they should have used some oval.No pride in their work.

 

I notice your original post says builder/plumber! Which? Also you can get 10mm pipe benders if you need them.

 

It is not a regulation,but it is rough workmanship not to do it.

 

That chase for a bit of T&E looks same size as pipe chase ..... 1 size fits all

Possible problem with pipe corrosion (ok some years down the line) and also chance of noises inside the wall when pipes expand with hot water ?

Hairy pipe lagging (hair felt) ? Is a simple and cheap solution

My sister recently had some electrical work done and several chases done. Cables laid then Chases were filled with expanding foam, cut back a few mm when dry then skimmed over

Finished job looks good to be fair
You guys seen this foam method before ?

 

expanding foam eats pvc cables.....

 

Guess that's not so good then

Work was during a kitchen refit by a large national chain (it's got their name on it)

 

And skim tends to fall off expanding foam if it isn't thick enough

 

I would prefer to avoid chasing in pipes at all, but if I have to and there is limited room I would wrap them in this. If there isn't room for proper clips, builders' band will do the trick.

For 10mm pipes like that, I would be putting the pipe through round plastic conduit; my personal opinion is that your builder is being a lazy git.

 

10m!m pipe cant"just be bent " by hand!!!!! u need a bender

 

yes, that's what I said!