Insulation with an existing slab

kevin_5

My only experience is with (foam/foil/foam 1/2") slab shield under (homemade OSB with 1/2" tubing)quik track over existing basement slab and floating laminate over the top.
It is the quickest responding floor of the whole house. We have staple up, under tile and carpet. We have in slab under linoleum. We have radiant ceiling too, everything but gyp-crete, so no comparisons for you there.

I think you would be happy with the quick-trak. More limited in your tubing layout, but possibly a lot less hassle and mess for a small area. Performance wise, I'm impressed with it, but again, no gyp-crete experience here. Kevin

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Riles_3

Insulation with an existing slab,

Looking for suggestions.

I have had a run of inquiries on existing slabs.

I am considering Overpours or Quik Trak.

What type of success have you had incorporating insulation?

Please explain.

With an overpour or Quik Trak I would be raising the floor about the same height.

Using 1/2" tubing I figure to Overpour 1-1/4" to 1-1/2".

Using Quik Trak I'd install 5/8" to 3/4" Plywood then 1/2" Quik Trak.

Rightfully so, I'm concerned about the areas in which the homeowner is planning on carpet. Often, with pad the R-valve ends up 2.5.

How do I avoid significant downward losses?

When they mention carpet I almost think Radiant Ceiling would be more successful.

Another question. I always suggest that they take an area 3' by the width of the exterior door and tile this area. Then, make the transition up to the new finished floor height.