Watch the movie about the Leca® LWA life cycle
We call it "Borrowed from nature"

Borrowed From Nature Sustainability

Green Stories from an environmentally friendly building material


Leca® Lightweight Aggregate Expanded Clay (LWA) is mainly known for its functional benefits, with a long history which dates back to more than 75 years, Leca® LWA is actually more modern than ever – and a highly resource efficient material within infrastructure, housing and water management development projects.

Leca® (LWA ) has been around since the 1940’s and although the product has been developed further since then, it is basically still the same product: expanded clay. This special and purposeful material is highly suitable for many building requirements due to its numerous and unique properties, we like to call it All-in-One, Everywhere. But Leca® LWA has some very positive and beneficial 'side effects' regarding environmental issues including resource efficiency and a sustainable long lasting lifetime.

Environmental and sustainable issues which were probably not the main focus 75 years ago, is certainly a concern today in the modern world.


Resourcefulness from cradle to grave – and resourceful in between!

To make this simple, we transform 1m3 of freshly dug clay into 5m3 of lightweight expanded clay aggregate construction material. Through this highly resourceful return of 1:5, we feel that our production positively impacts the full life circle of a natural resource, from cradle to grave. By combining the All-in-One features such as being durable, strong, lightweight, water absorbent and recyclable, Leca® LWA actually benefits the environment, limiting resource requirements and improving our living and working conditions.

We believe that Leca® LWA has a positive effect on every stage of the product lifecycle from Production, Transport, Construction, Living to Recycling. This strong lightweight and inert aggregate can be used everywhere, and can be re-used / re-cycled - and can even be returned back to the Earth. We like to call it 'Borrowed from Nature'.

This is not just another nice story on sustainability, we are actually doing this!