In Victoria there are several sustainable products that can be used for building

In Victoria there are several sustainable products that can be used for building with thermal mass. Here are a few examples:

Concrete: Concrete is a popular choice for building with thermal mass as it has a high density and can absorb and release heat slowly. It is also a durable and long-lasting material that can withstand the Australian climate.

Rammed earth: Rammed earth is a sustainable building material that is made from compacted soil, sand, and gravel. It has excellent thermal mass properties and can be used for walls and floors.
Brick: Brick is another popular material for building with thermal mass. It is an excellent insulator and can store heat for long periods. Bricks are also durable and can withstand the Australian climate.

Stone: Stone is a natural and sustainable material that has excellent thermal mass properties. It can be used for walls, floors, and even roofing, depending on the type of stone.
Timber: While timber is not typically thought of as a material for thermal mass, it can be used in combination with other materials to create a thermal mass system. For example, a timber-framed house with a rammed earth or concrete floor can provide good thermal mass properties.

It’s important to note that the sustainability of these products can depend on factors such as sourcing, transportation, and manufacturing processes. Therefore, it’s important to consider the environmental impact of the entire lifecycle of a material before selecting it for use in building with thermal mass.