Questions for an expert

Hi,

I know nothing about modern metal detectors so perhaps you can help....

We are having a new house built with underfloor heating imbedded in the
concrete floor screed. The pipes are plastic but have an aluminium foil
layer in them. They will be spaced about 12-18" apart and cable tied to a
steel mesh/grid (5" grid?). The screed would be about 65mm thick.

Would it be possible to use a metal detector to find the pipes later after
the screed has been poured? Is it likely to be possible or impossible to
discriminate between the two metals to locate the pipe? What if the mesh
were over rather than under the aluminium pipe?

I plan on taking photos before the floor screed is poured but it would be
nice to know if a metal detector is likely to work.

Thanks

Colin

I think your best bet is to measure where you have laid your pipes rather
than rely on on a metal detector to find them, it might be possible with a
top end detector but i wouldn't count on it.
"CWatters" <colin.watters@pandoraBOX.be> wrote in message
news:9b85e.57550$Kh4.4430953@phobos.telenet-ops.be...
> Hi,
>
> I know nothing about modern metal detectors so perhaps you can help....
>
> We are having a new house built with underfloor heating imbedded in the
> concrete floor screed. The pipes are plastic but have an aluminium foil
> layer in them. They will be spaced about 12-18" apart and cable tied to a
> steel mesh/grid (5" grid?). The screed would be about 65mm thick.
>
> Would it be possible to use a metal detector to find the pipes later after
> the screed has been poured? Is it likely to be possible or impossible to
> discriminate between the two metals to locate the pipe? What if the mesh
> were over rather than under the aluminium pipe?
>
> I plan on taking photos before the floor screed is poured but it would be
> nice to know if a metal detector is likely to work.
>
> Thanks
>
> Colin
>
>

>I think your best bet is to measure where you have laid your pipes rather
>than rely on on a metal detector to find them, it might be possible with a
>top end detector but i wouldn't count on it.

I doubt it would work, you'd need to be used to the machine anyway to
understand what it's telling you.

"Jim & Debbie" <jim@sewell01.fsnet.co.uk> wrote in message
news:d35ave$i7b$1@news6.svr.pol.co.uk...
> >I think your best bet is to measure where you have laid your pipes rather
> >than rely on on a metal detector to find them, it might be possible with
a
> >top end detector but i wouldn't count on it.
>
>
> I doubt it would work, you'd need to be used to the machine anyway to
> understand what it's telling you.
>

Ok thanks both of you. Guess I'll have make lots of notes before we pour the
floor screed and cover the lot.

Could you mark the locations on the walls behind what the skirting boards
will cover ? Removing the skirting boards in the future will be a pain
but a lot cheaper than repairng a damaged pipe.

Phil

"Phil" <philo@gnt.netSPAMMM> wrote in message
news:d39rmh$fnr$1@news.utelfla.com...
> Could you mark the locations on the walls behind what the skirting boards
> will cover ? Removing the skirting boards in the future will be a pain
> but a lot cheaper than repairng a damaged pipe.
>

Yes that's a good idea, thanks. I could even mark the skirting board with a
UV pen perhaps. As long as I remember next time it comes to painting
everything.

	#1
CWatters	Questions for an expert Hi, I know nothing about modern metal detectors so perhaps you can help.... We are having a new house built with underfloor heating imbedded in the concrete floor screed. The pipes are plastic but have an aluminium foil layer in them. They will be spaced about 12-18" apart and cable tied to a steel mesh/grid (5" grid?). The screed would be about 65mm thick. Would it be possible to use a metal detector to find the pipes later after the screed has been poured? Is it likely to be possible or impossible to discriminate between the two metals to locate the pipe? What if the mesh were over rather than under the aluminium pipe? I plan on taking photos before the floor screed is poured but it would be nice to know if a metal detector is likely to work. Thanks Colin

	#2
bill	Re: Questions for an expert I think your best bet is to measure where you have laid your pipes rather than rely on on a metal detector to find them, it might be possible with a top end detector but i wouldn't count on it. "CWatters" <colin.watters@pandoraBOX.be> wrote in message news:9b85e.57550$Kh4.4430953@phobos.telenet-ops.be... > Hi, > > I know nothing about modern metal detectors so perhaps you can help.... > > We are having a new house built with underfloor heating imbedded in the > concrete floor screed. The pipes are plastic but have an aluminium foil > layer in them. They will be spaced about 12-18" apart and cable tied to a > steel mesh/grid (5" grid?). The screed would be about 65mm thick. > > Would it be possible to use a metal detector to find the pipes later after > the screed has been poured? Is it likely to be possible or impossible to > discriminate between the two metals to locate the pipe? What if the mesh > were over rather than under the aluminium pipe? > > I plan on taking photos before the floor screed is poured but it would be > nice to know if a metal detector is likely to work. > > Thanks > > Colin > >

	#3
Jim & Debbie	Re: Questions for an expert >I think your best bet is to measure where you have laid your pipes rather >than rely on on a metal detector to find them, it might be possible with a >top end detector but i wouldn't count on it. I doubt it would work, you'd need to be used to the machine anyway to understand what it's telling you.

	#4
CWatters	Re: Questions for an expert "Jim & Debbie" <jim@sewell01.fsnet.co.uk> wrote in message news:d35ave$i7b$1@news6.svr.pol.co.uk... > >I think your best bet is to measure where you have laid your pipes rather > >than rely on on a metal detector to find them, it might be possible with a > >top end detector but i wouldn't count on it. > > > I doubt it would work, you'd need to be used to the machine anyway to > understand what it's telling you. > Ok thanks both of you. Guess I'll have make lots of notes before we pour the floor screed and cover the lot.

	#5
Phil	Re: Questions for an expert Could you mark the locations on the walls behind what the skirting boards will cover ? Removing the skirting boards in the future will be a pain but a lot cheaper than repairng a damaged pipe. Phil

	#6
CWatters	Re: Questions for an expert "Phil" <philo@gnt.netSPAMMM> wrote in message news:d39rmh$fnr$1@news.utelfla.com... > Could you mark the locations on the walls behind what the skirting boards > will cover ? Removing the skirting boards in the future will be a pain > but a lot cheaper than repairng a damaged pipe. > Yes that's a good idea, thanks. I could even mark the skirting board with a UV pen perhaps. As long as I remember next time it comes to painting everything.