TNO reports:

• The equivalent heat conduction coefficient of a sample of Drowa chips.
  Report number: 99-BT-MK-R0160

• The equivalent moisture resistance figure of a sample of Drowa chips.
  Report number: 99-BT-MK-R0186

• Transmission loss via the lower ground floor above crawling space installed with a ground insulation of Drowa chips, 13 cm thick layer with taluds.
  Report number: 99-BT-BK-R01147

• Transmission loss via the lower ground floor above crawling space installed with a ground insulation of Drowa chips, 25 cm thick level layer.
  Report number: 99 BT-BK-R0145

• Energy savings by installing ground insulation of Drowa chips.
  Report number: 2000-BT-BK-R0046

• Transmission loss of an uninsulated lower ground floor with ground insulation from Drowa in the crawling space.
  Report number: 2000-BT-BK-R036

• The relative humidity in the crawling space after installing Drowa.
  Report number: 2001-BT-HT-R0192

• " The relative humidity in a crawling space after installing Drowa chips and the effect on the humidity level of wooden joists.
  Report number: 2002-BS-R0064