insulation over concrete slab

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  #1  
Old 03-22-06, 02:10 PM
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insulation over concrete slab

Hi all:
In the process of a gut rehab of my kitchen. A portion on the kitchen is built over a concrete slab and has 2 inch joists sitting right on the concrete. I just installed a vapor barrier on the concrete (builder's felt under 6 mil). My question is what should I use for insulation. Thanks

If it matters, I will use 3/4 ply, 2 layers of underlayment, electric radiant heat and then ceramic.
 
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  #2  
Old 03-23-06, 08:39 AM
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Location: USA
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Rigid board insulation and you have to install a radiant barrier over the insulation if you intend to use electric radiant floor system.
 
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