Hollow core slabs have an excellent finish quality on both top and bottom surfaces, the lower surface because the elements are cast on steel production beds.
The upper surface because the element is smoothed by the Slipformer meaning that the final element requires no further finishing, painting is only if required.
To improve the architectural aspect of the upper surface, the elements can also be manufactured with a finish incorporating different coloured aggregates using a special topping machine.
This allows the economic production of high quality wall elements.
The elements can also incorporate insulating material between the base of the hollow core slab and the concrete topping to increase the acoustic and thermal properties.