Thermablok® Case Studies

Thermablok® Aerogel Insulation Converts Old Mill House Into Modern Energy-Saving Passive House


  • Insulate a Swiss home built in the 1600s to achieve passive energy status – not requiring heating or cooling
  • Conserve living space
  • Use a flexible insulation to maintain the original shape and reveals of the house

Aerogel Solution

  • An aerogel solution consisting of multiple layers of 9mm Thermablok® was used externally and internally on the walls and also internally on the floors
  • Externally – traditional rendering systems were applied with a standard metal mesh incorporated to protect the system
  • Internally – standard plaster was used to allow a breathable solution that let entrapped vapor “breathe” through the wall


  • The U value of the walls improved from 1 W/m2K to 0.2 W/m2K
  • The contractor experienced faster installation rates for the walls and floors
  • The building retained its character features