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Re: Mat Foundation with Hydronic Heating System

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I agree with your gut...if there is ever a problem with the system, it needs to
be at least somewhat accessible...I'd even provide a membrane between the
structural slab and the topping for future removal (if necessary) and to somewhat 
limit the thermal stresses in the mat.

On Sat, 29 Jan 2011 21:08:42 +0000, mblangy(--nospam--at) wrote:
Greetings list,
My client would like a hydronic heating system (3/4" Pex @ 12" E/W) to be incorporated into the 12" mat slab foundation specified for their residence. I am considering placing the tubing just below the top layer of slab rebar, but my gut tells me it needs to be in a separate topping slab. Any advice would be greatly appreciated.
Michel Blangy, P.E.
Hermosa Beac, CA