R-Value Thermal Insulation Performance of Various Floor Coverings ProductR-Value of Product(thermal resistance) 3-1/2″ thick fiberglass insulation11Carpet3 – 4Quarry Tile0.02Vinyl Sheet and Tile0.03 – 0.13/4″ Solid Oak Hardwood0.61/2″ Engineered Hardwood0.6Laminate0.4 – 0.7 Updated on May 12, 2023