Wall System Value Comparison

A standard Thermomass wall is generally around 310 mm thick. Our proposed wall is increased to approximately 360 mm thick, allowing for a larger insulation core and significantly improved thermal performance.

When compared with a conventional premium brick veneer wall, the difference is important.

A typical brick veneer wall with timber studs is approximately 250 mm thick. Our Thermomass concrete wall is approximately 360 mm thick — an increase of 110 mm, or about 44% more wall depth.

On a simple 20 metre long wall at 3.3 metres high, the wall area is 66 m².

That means the Thermomass wall gives you a much more substantial building envelope: more insulation, more concrete mass, greater acoustic separation, greater durability, better fire resistance, and a permanent architectural concrete finish.

Yes, the Thermomass wall costs more. However, it is not 44% more wall thickness for 44% more money in simple material terms. The additional cost buys far more than thickness — it buys a higher-performing wall system where structure, insulation, internal finish, external finish, thermal mass and long-term durability are combined into one wall.

A premium brick veneer wall is still a good conventional wall. But it remains a layered system: timber frame, insulation, wrap, cavity, brickwork, plasterboard, paint, trims and future maintenance.

The Thermomass wall is different. It is a permanent concrete envelope.

For a high-end home, the question is not simply, “Which wall is cheaper?”
The better question is:

“Which wall gives the best long-term value, comfort, durability and architectural result for the money invested?”

On that basis, the 360 mm Thermomass wall is the stronger long-term investment.