166 sqft, 16" x 125ft rFoil Between-Joist Reflective Radiant Heat Insulation
Brand: rFoil
Part#: 2222-16-125
In Stock
Usually ships: within 1 business days
16" wide x 125ft long (166 sqft total) roll or reflective bubble insulation by rFoil. Designed for installation between the 16" OC (On Center) joists, this insulation offers excellent R-value, provides a water vapor barrier and is overall a much healthier alternative to fiberglass insulation. It is Class A/1 fire-rated and is suitable for projects with or without PEX radiant heat (where PEX tubing is stapled to the bottom of the subfloor/plywood).
Insulation has 1" side tabs which make stapling easier. For optimal performance, use with rFoil 2" wide metalized tape #15012 or similar.

  • For 16" OC (On Center) joists
  • Double-bubble design
  • 3-in-1 insulation, radiant barrier and vapor barrier
  • 1" side tabs make stapling easier
  • Unaffected by moisture & humidity
  • Class 1/Class A fire rating
  • Suitable for ceilings (between joists), walls & crawl spaces
  • No fiberglass particles in the air, no mess.
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Technical Specifications:
  • Coverage: 166 sqft (16" wide x 125ft long)
  • R-Value (per ASTM C1224): R-13.0 (Between-joists, staple-up application)
  • R-15.2 (Heat flow down)
  • R-8.5 (Horizontal heat flow)
  • Operating temperature range: -50°F - 180°F
  • Nominal thickness: 5/16"
  • Weight: 1.25 oz/sqft
  • Water vapor permeability: <0.02 perms
  • Reflectivity: 0.96
  • Emissivity: 0.04.
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