Building a house using polystyrene blocks – or concrete insulation formwork – may seem surprising, but this innovative method combines performance and sustainability. The blocks are joined together like bricks, reinforced with metal rods and then filled with concrete, creating a robust and perfectly insulated structure. This system retains heat in winter and coolness in summer, reducing the need for heating and air conditioning and therefore energy costs. Construction is fast, precise and efficient. It is not a DIY job, but advanced technology that combines comfort, economy and environmental friendliness. A serious alternative to bricks.