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James
sunporch insulation

I have a sun porch off of the north west side of our rancher.  It already has triple pane windows installed by a previous owner and yet the ceiling and floor have no insultion what-so-ever!

I am interested in opinions about insulating the floor space. (I plan to insulate above as well but that seems more logical to me).  It was originally a concrete slab and the previous owner who was disabled put 2 x 8's on top and a wood deck over these to gain access to the home.  I was interested in adding a heated tile floor for cool fall nights and days.  However, I am concerned about condensation in light of the space between the slab and the decking.  How should I go about insulating this over a slab?
Any thoughts would be appreciated.

Jim 

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