When considering flooring and wall products the Thermal Performance is becoming more important as the focus on energy efficiency increases. A products thermal resistance and conductivity plays an important role in energy efficiency.
To explain simply, it measures how much heat is transferred through a product.
Like the sun hitting glass, in most cases the glass will transfer the heat through and heat up the car or house along with the walls and possibly ceiling. The performance is shown in two ways; Thermal Resistance (R-Value) and the Thermal Conductivity (l-Value).
Higher R values represents better thermal resistance, or less heat transferred. Lower Thermal Conductivity shows less heat conducted through the product.
Cork is another wonder in this field having the highest thermal performance per thickness than any other natural product and almost all synthetic products on the entire market. The natural cells in the Cork bark provide the perfect and natural resistance to heat transfer, just like it would as bark on a tree to survive the Portuguese dry heat
CORK Thermal Resistance (R-Value) of 0.137 (0.137m2°K/W) EN 12667 – 0.3 per square inch
CORK Thermal Conductivity l-Value of 0.0038 W/ mK EN 12667