Thermal insulation below a ground bearing concrete slab or a floor in contact with the ground as well as foundation slabs and basement floors, can be achieved very effectively by creating a loadbearing insulation fill layer – or insulation hardcore – with Laterlite Plus insulating aggregates before pouring the concrete slab.
The solid ground floor insulation fill with Laterlite Plus, in a single operation, makes it possible to:
- prevent rising damp
- ensure that there is sufficient thermal insulation
- eliminate thermal bridging, particularly in energy-efficient buildings
- ensure the whole-life stability of the building
- integrate well with service distribution runs
Insulation below the floor slabs with Laterlite Plus is an alternative to a traditional insulated solid floor composed by hard core and insulation boards: quick to lay, it will reduce the required depth of the void and excavation, and the number of construction layers required, simplifying the technical solution and reducing the working time.
The solution provides excellent thermal performance: in addition to the thermal resistance of the insulation fill with Laterlite Plus (lambda 0.09 W/mK) and that of the slab, it also takes advantage of the insulation and thermal mass of the ground (EN ISO 13370 Thermal performance of buildings. Heat transmission via the ground. Calculation methods).