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. Measure working area where Flexfoil will be applied.
  2. Apply Flexfoil on top of the gravel in the same manner as a polyethylene vapour barrier.
  3. Ensure that the polyethylene side of the material is facing towards the concrete slab.
  4. Ensure that all seams are securely taped using Flexfoil reflective tape.
  5. Pour slab using approved construction methods.