Best Practice - Running Pipes through Dot and Dab Plasterboard

[antsals]

Morning all,

Very quick background; I have 10 year old house, been in it 18 months. When central heating comes on on many of the downstairs rads where the pipe runs down the wall there is always a clicking / ticking noise. I was advised that it is probably where the pipes run through the joist of the house. Lifted floorboards and no joists near it.

I now assume its something to do with the dot and dab and the pipework encased in the adhesive. Something to do with the expansion and contraction of the pipework?

I'm now currently decorating and want to sort the problem. I have exposed the pipework and found that there is no protection on the pipes. Some of the "dot & dab" is encasing the pipework (although I have removed it all from the pipework I have exposed) the pipes are clipped to the wall, but to protect from the wall / cement (I guess) they have used a plstic sheet very similar (if not the exact thing) as what you would use on brickwork and the damp course level. I suppose this could also be makin the noise?

What I'm asking is what is best practice on protecting and running these pipes in the wall to be sure I will eliminate this nosie issue?

My idea....unclip, removed that plastic sheet, use some tubular felt to protect pipe, re-clip to wall, (should I now cover with metal casing like what you would use to protect cables?) or something else? Then I was thinking of filling with plaster adhesive, then skim or should I somehow fill the void so I don't adhevise the pipes?

Any advise / help I would welcome,
Thanks,
Ant

 

[lame plumber]

turn up the radio or tv, noisy pipes normally at joists or where no freedom of movement given on long runs. I think you are getting a bit ocd the way your going with this

 

[AWheating]

could use some of this:

http://www.toolstation.com/shop/Con...+Pipe+Lagging+Stitched+72m/d210/sd2738/p62471

 

[antsals]

turn up the radio or tv, noisy pipes normally at joists or where no freedom of movement given on long runs. I think you are getting a bit ocd the way your going with this

Its so annoying! It doesn't do it in everyone else's house I go too!

When you say joist or no freedom; everything is clipped like it should be

Ant

 

[lame plumber]

probably got death watch beetle rather than loose pipes, they make clicking sounds

 

[on31ll]

ok so with it exposed and the heating on where is the noise coming from ? has it stopped ?

 

[antsals]

probably got death watch beetle rather than loose pipes, they make clicking sounds

Ain't no beetles.......more a tapping sound!

 

[Richie_77]

The problem is you bought a new house.....
Everything is geared to profit & shareholders. As far as the big builders are concerned quality is an [FONT=arial, sans-serif]inconvenience they have to deal with. As long as the system works and doesn't leak there happy quality control tick. I know this as i work on large housing developments for the last 7 years chasing the buck
But sorry back to your original question, answer hair felt round the heating pipes in fact all the pipes where they pass through joists or tight spots this means taking up the floor and finding your pipework
[/FONT]

 

[antsals]

The problem is you bought a new house.....
Everything is geared to profit & shareholders. As far as the big builders are concerned quality is an inconvenience they have to deal with. As long as the system works and doesn't leak there happy quality control tick. I know this as i work on large housing developments for the last 7 years chasing the buck
But sorry back to your original question, answer hair felt round the heating pipes in fact all the pipes where they pass through joists or tight spots this means taking up the floor and finding your pipework

Thanks for the reply....yep I know some of the quality around the house is questionable. Felt the pipe all the way up the wall, can I just fill the channel with plaster adhesive or should I cover it first?

Thanks,
Ant

 

[on31ll]

Youhave to cover the pipework to protect from the acidic reation with lime etc in the mortors reacting with the copper ! Go to the merchants and get denso tape or something ! Its a netted tape covered in petrolium jelly !

 

[Richie_77]

Before you go hacking are you sure that the pipes aren't rubbing on something ie skirting boards, where they come through the wall?
We used to run heating behind dot and dab in 10mm speedfit then though a wiring back plate and put a plastic panel on over it.
If the pipes were pulled to tight against the plastic panel it would creek like

 

[lame plumber]

if the pipe is solidly held in dot n dab it cant move, evidence of movement would be cracked plaster adhesive, is/was it. probably as stated the cause is tight joist cut outs, or moving thro exit points or no room for movement. death watch beetle go tap tap tap at night time as well.

 

[on31ll]

I asked if the noise is still there now got no reply !

 

[Keefy]

I asked if the noise is still there now got no reply !

Give him a chance, maybe he went to bed?

 

[on31ll]

Nah he replied after my comment ! Just seem to ignor or didnt see my question !