Liassic clay is the high-quality raw material of Liapor fills. Liapor is exceptionally good at reducing heat loss, while simultaneously storing heat and absorbing sound. Thanks to their ability to absorb and release water vapour, the Liapor expanded clay spheres regulate humidity and in this way ensure a pleasant indoor climate. Liapor not only provides a lot itself; it is also insensitive to external influences. This non-flammable material benefits from the highest fire classification (A1). However Liapor is not only fire-resistant but is also frostproof. High baking temperatures during production mean that there is very little residual humidity, with the result that Liapor can be used outdoors even when the temperature is way below freezing.