The warm comfort that carpet provides is not just your imagination. Unlike other types of flooring, carpet is a natural insulator, providing additional warmth in cold seasons.
The use of carpet in a wall-to-wall application actually increases the R-value, or insulation level, of the carpet area, potentially saving homeowners like your utility costs while reducing energy use. The R-value (thermal resistance) measures how much a material resists the movement of heat through a ceiling, wall, or floor in a building. The higher the number, the more effective the insulation.
Recently, tests carried out at the Johns Manville Technical Center Thermal Labs, one of the most sophisticated laboratories of its kind in the world, confirmed carpet and pad significantly increase R-value compared to other flooring materials. Results varied according to the carpet’s construction, with heavier products generally providing higher R-value. Carpets were tested with and without cushion, and the combination maximized the R-value. Carpet really is warmer.
Test results from the different carpet constructions were compared to three hard surface products – ceramic tile, laminate, and engineered hardwood – and the differences were dramatic:
- Carpet vs. engineered hardwood: From 3 to 7 times the R-value.
- Carpet vs. laminate: From 4 to 8 times the R-value.
- Carpet vs. ceramic tile: From 8 to 17 times the R-value.