Thermowwod is rated as class 2, which is durable.  (BRE give a life span for this product of around 30 years).

  • Thermal conductivity (W/mK) Thermowood has a thermal conductivity of around 20% less than standard softwoods. The thermal conductivity is y10 to 0.099 W/(m K).
  • Density The density of this material is between 350kg m3 to 480kg m3 when dried to a moisture content of around 6%.