Chris made a point of avoiding plasterboard, instead using structurally insulated panels for the walls to create an airtight seal, and for the flooring, a hydronic concrete slab from Hydrotherm that can warm or cool the interiors.  Photo 7 of 7 in Ceiling by James Baker from A Trio of Design Professionals Create a Development of High-Performing Townhouses in Melbourne

Ceiling

7 of 7

Chris made a point of avoiding plasterboard, instead using structurally insulated panels for the walls to create an airtight seal, and for the flooring, a hydronic concrete slab from Hydrotherm that can warm or cool the interiors.