The excellent draining capacity of pervious lightweight concretes based on expanded clay (Latermix Cem Classic, Latermix Cem Maxi) makes them suitable for use as a very robust drainage layer below permeable types of paving (such as concrete pavers, paving slabs, architectural pervious concrete, etc.) or to support small concrete structures.
Dry Laterlite Expanded Clay (Laterlite Expanded Clay, Laterlite Plus) can be used to protect waterproofing membranes or insulating layers from solar radiation, thermal shock, and impacts, or as ballast on warm roofs or inverted roofs, reducing the weight by 85% as compared to gravel or other heavy aggregates.
For further information please refer to the specific section dealing with drainage for green roofs.
For further information please refer to the specific section on roof falls and thermal insulation.