In production — Devanahalli, Karnataka
Cement emits almost its own weight in carbon. Gau Plaster is a cow dung wall plaster made without a kiln.
No clinker. No calcination. Cheaper than cement, cooler to live behind, and every bag buys dung from a village gaushala.
That is roughly 2,756 km in a petrol car — burnt to finish walls that will then let heat in for fifty years.
The greenest wall is the one that never went through a kiln.
Cement's carbon is chemistry, not fuel. Roasting limestone at 1,450°C drives CO₂ out of the rock itself. The only way past it is to stop roasting — so we did.
Drawn to scale
Four manufactured layers, or one.
Three of the four layers on the left exist only to correct the one beneath. Take out the cement and they stop being necessary.
Why it is sustainable
Six reasons, each with a mechanism behind it.
The saving that repeats
Carbon is paid once. Cooling is paid every summer.
Drag the slider. A standard Indian wall has no insulation in it at all.
A model of how an insulating wall narrows the gap between outside and inside — not a measured result.
Next step
The cheapest thing on site can also be the greenest.
Send us the site and roughly how many square feet of wall. We come back with quantities, a price and a date, usually within two working days.