Installation Guide:
Concrete Slab Applications
Application Under Slab
Product
Foil Double Bubble Poly or Bubble Foil Bubble
 
R-Value
Heat Flow Down: R-3.8
 

Instructions
  1. Apply the Flexfoil to the concrete slab with the white poly side facing down.
  2. Ensure that all seams are securely taped using Flexfoil reflective tape.
  3. Apply the floor sheathing and finish using approved methods.