MUD, LIME & LOVE

Choosing Natural Building Materials Over Concrete

- Gauri Ghadge

A quiet revolution is stirring beneath the steel and concrete that have long defined the built environment. It doesn't glitter with glass or boast skyscraping ambition. Instead, it speaks in the language of texture, breathability, and memory, of clay, lime, and timeworn wisdom.

Across Goa and around the world, designers and dwellers alike are reawakening to a powerful truth: that the future of architecture may lie in the oldest materials known to humankind.

At the heart of this movement is a shift not merely in construction practices, but in consciousness. A realisation that building with natural materials is not a retreat into the past, but a reclamation of sustainability, resilience, and soul.

THE CONCRETE CONUNDRUM

Concrete is everywhere. It's the backbone of bridges, towers, roads, and cities. But its environmental impact is staggering. Cement, the active binder in concrete, is responsible for roughly 7-8% of global carbon dioxide emissions. This comes primarily from the process of calcining limestone at temperatures approaching 1,450°C, releasing nearly a tonne of CO2 per tonne of cement produced.

In tropical climates like Goa, concrete's drawbacks are even more acute. It absorbs and traps heat, leading to increased reliance on energy-intensive air-conditioning. It is impermeable, contributing to flash flooding by preventing natural water absorption into the soil. Unlike natural materials, it cannot biodegrade; it ends its life as rubble, often adding to landfill or demolition waste.

In a time of climate urgency, continuing to rely on concrete as our default building material is no longer tenable.

MUD: EARTH AS SHELTER

For thousands of years, humans have lived in homes made of the very soil beneath their feet.