Use: Prodex Under Concrete or Reflective Bubble White Poly

  1. Very efficient in areas having radon gas problems
  2. Cheaper than a lead barrier
  3. Also a perfect vapor barrier
  4. Thermal resistance added

How To Insulate With A Radon Barrier


  1. Do the same installation as underneath the concrete slab (see  Radiant Heat in a Concrete Floor). Just make sure to seal it along the wall.

Exterior Wall:

  1. Install Prodex Under Concrete or Reflective-Bubble-White Poly, white side against the wall, with a multi purpose adhesive. Seal the seams with under concrete tape. Be sure to properly seal with caulking at the bottom and at ground level on the foundation wall.
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