THERMOMASS insulation for concrete sandwich panels is consistently specified in a range of projects around Australia. THERMOMASS is the best way to insulate concrete, due to the placement of a high amount of thermal mass on the inside of the insulation envelope. This thermal mass passively regulates temperature by absorbing and releasing heat energy though diurnal swings. This means an increase in energy efficiency over and above required by BCA Section J. This section of the website shares the insulation projects THERMOMASS concrete sandwich panels are used in.