CUPOLEX® is the world’s leading smart void former made from 100% recycled plastic. Concrete is poured over the modular dome forms to create a floating or structural concrete slab. Cupolex smart void formers minimises concrete contact with the soil while providing a capillary barrier against moisture yet uses less concrete and steel than a standard slab with equivalent load-bearing capacity. CUPOLEX® smart void formers provides major advantages over a standard slab on grade:

Provides an excellent moisture barrier under the slab with a void that can be vented in soil with high water content or salinity.
Water cannot leach up through the bottom of the concrete slab significantly protecting the structure from water damage and improving internal air quality.
Moisture cannot leach through the concrete thereby ensuring the top and bottom of the concrete foundation remain dry. This eliminates the concrete slab as a possible source of moisture transference to under flooring overlays and prevents damage to expensive architectural flooring finishes, floor tiles or carpets.
Ventilating the CUPOLEX® under slab void space will effectively help control Vapour intrusion, humidity levels, and temperature ranges, that standard slabs cannot control.
Replaces fill or gravel that typically is required to bring the slab to the finished floor level and eliminates the costs associated with importing, compacting, certifying engineered fill. This also reduces any risk with post-construction settlement of the underlying sub-base.
Longer spans can be achieved in pile/beam structural slabs than with flat standard slabs
Assists designers to deliver sustainable features that contribute to GREEN STAR certified building.  Download Link Case study
Maximum control of concrete curing resulting in a reduction of slab curling, shrinkage cracks while providing a higher quality surface.
Provides under-slab void for running cables and pipes, simplifying post-construction installation of new wiring and utilities.
We can provide special CUPOLEX® slab designs on soils with very low bearing capacity or soil that is highly expansive.

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