The exterior wall thick - ness varies according to the thermal conduc - tivity of the materials used. Solid timber 30 cm, insulating con - crete 50 cm and ren - dered insulating brick 42.5 cm (left to right).

The exterior wall thick - ness varies according to the thermal conduc - tivity of the materials used. Solid timber 30 cm, insulating con - crete 50 cm and ren - dered insulating brick 42.5 cm (left to right).

Image credit: Florian Nagler Architekten