Apart from gas pipes, does the team think it's necessary to sleeve a)
copper b) pe-x pipe where it passes through internal brick walls?
If the purpose is primarily corrosion protection, would e.g. a couple of
turns of duct tape suffice?
Or have I got to buy another whopping masonry drill?
With copper you may want to protect it from corrosion if the wall
contains cement... wrapping with Denso tape would do it. With plastic
there is no specific requirement, although you may want to protect the
end of the pipe from scratches so as to ensure a good seal in pushfit
In article ,
I sleaved all pipework through walls when I installed central
heating (all in copper). It also allows for expansion movement.
Denso tape is the stuff to use, if you do it that way.
Or hire one.
My understanding is that the main reason for it is to allow free expansion
and contraction of the pipe, rather than to prevent corrosion - helps avoid
clicking noises and rubbing of the pipe.
Since professional heating installers seem to do it, and are not given to
wasting time and materials, I've always assumed it was a good thing to do.
The first heating system I installed, many years ago, in the days before
"sheds", came from a company who suppied all the bits as a kit with
instructions and they certainly said all pipe runs through walls should be
sleeved, so I guess it's regared as "good practice"
Plastics in general have higher expansion coefficients than copper so I
assume its more important for PE, though I've never used it. Certainly I
wouldn't want PE pipe rubbing on anything hard - it's a relatively soft
Personally I'd buy another whopping masonry drill - what's the point of
starting a job which doesn't need a new tool?
Anyone know the life expectancy of a copper pipe if it hasn't been sleeved?
We got central heating installed last year and one of the rooms had a
laminated floor and rather than lift the flooring to get access below it the
plumbers drilled from one room diagonally under the floor, through the wall
(beneath the floor) and into the floor space of the adjoining room. From
what I can see no sleeving has been used.
I'm sure I read on here it would take about 20 years to break down the
copper is this right?
In article ,
Ed Sirett writes:
I tended to use whatever was to hand. 20mm plastic conduit
works will with 15mm copper tube. You can bend the two
together in a 22mm pipe bender too. 40mm waste pipe fitted
over 28mm copper tube quite well (can't recall if it was
pushfit or solvent weld waste pipe, and they aren't the
same size). I have also used the next size up copper pipe