Expeditions undertaken by the Australian government (through the Australian Antarctic Division since the late 1970s) and private non-profit conservation organisations (notably the two Project Blizzard expeditions of 1984/85 and 1985/86, and the Mawson's Huts Foundation since 1997) have carried out conservation research, surveys and work on the huts. In addition to archaeological recording, removal of snow from inside the huts and ongoing maintenance, recent interventions (1998 and 2006) have been to encapsulate the failing timber roofs with new timber over-cladding in order to weatherproof the interiors.