[Greenbuilding] Hydronic Radiant Underfloor Heating

[Ward Edwards]

We laid down 3" of xps foam and then a layer of reinforcing mesh with 
the 6" mesh.  We then attached the pipes to the the mesh and poured a 
3.5" slab over that.  It has been working fine, and has a very even 
heat.  The only thing I would do different would explain in more detail 
to the concrete guys that it is very important to lift the pipes about 
an inch into the slab, or use something to hold it up, as they ended up 
just pouring on top of the mesh

Ward Edwards


Gary Viljoen wrote:
> Hi all,
> 
> I am about to install an under floor hydronic system into the home I am
> building, and face two options given to me by ‘experts’:
> 
> 1.	Lay the concrete surface bed.  Place polystyrene insulation on top.
> Lay the piping in the screed above this.
> 2.	Insulate below the surface bed with the piping in the concrete
> surface bed.
> 
> Any recommendations based on experience?
> 
> Thanks 
> 
> Gary
> 
> 
> GARY VILJOEN
> 37 Park Avenue, Hout Bay, 7806
> South Africa
> tel: +27 21 7907546
> mobile: 082 5631470
> e-mail: gary at humanworks.co.za
> 
> 
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