Insulating Foundation Blocks

Leca Stones

The fan shaped conference center has a foundation of porous concrete called Leca. The porosity makes the material heat insulating, strong and frost-proof – as well as lightweight. The porosity minimises material use for the foundation, compared to more traditional materials. Leca is an inorganic material and cannot be destroyed by rot, fungus or insects.

Who’s behind it: 
Weber, Saint-Gobain

Where you’ll find it: 
In the foundation of the new building.