Chased pipes into wall.

[Andrew Stride]

What is the minimum depth of plaster required to cover central heating pipes chased into a wall, my plumber has left about 1mm of space from the surface of pipes to the surface of the plaster, I'm doing the filling but I'm not an expert and 1mm don't seem enough to me. Can someone please advise me.

 

[Aire]

Too shallow, the heat from the pipes will cause expansion and it will crack.

 

[chris watkins]

Deep enough so that with the expansion & contraction of the heating system the plaster will not crack & fall out.
IMHO Heating pipes should not be chased into walls, I don't even like it when they put the plastic pipes behind dot & dab plaster board!!
Whats the mater with surface runs & if you must then box them in or use a cover system, at least you know where they are in the future .

 

[Sharp Point]

Too shallow, the heat from the pipes will cause expansion and it will crack.

Actually depends on the protective surface. If it’s 1mm above foam/ horsehair lagging.... it wouldn’t make a blind bit of difference. If it was 1mm above copper or tape wrapped copper then yes it would.

I thought I would clarify that for you again Craig

 

[Aire]

I thought I would clarify that for you again Craig

Clarify it for me again? Have we had this conversion before?

1mm is too thin regardless of what the pipes are wrapped in. It's simply too thin of a skim not to crack in any scenario.

 

[Andrew Stride]

Too shallow, the heat from the pipes will cause expansion and it will crack.

 

[Andrew Stride]

Clarify it for me again? Have we had this conversion before?

1mm is too thin regardless of what the pipes are wrapped in. It's simply too thin of a skim not to crack in any scenario.

Thanks Graig, much appreciated, looks like I will have to recall the plumber.

 

[ShaunCorbs]

Where’s the chase located

 

[AMGasServices]

What finish do you want to achieve for this area.

 

[Rob Foster]

This one comes up often. Pipes expand and contract with heat and pressure. Simply chased into the wall and plastered over
is not correct. the finish will be compromised crack and eventually fall off. I always have
pipes put into deep buried trunking ,then covered. Thats the best way re walls
centralheatking