earth wall was 600mm thick and was coated with a protective layer to reduce the impact of weather on the wall over time .
The roof structure was designed to span the entire hall area and to carry people and planting on the roof . This was achieved using a coffer slab on the upper roof structure . The planting on the roof structure is low growing indigenous planting with drip irrigation and aids in the thermal comfort
of the building . Balustrades were designed to protect the people on the roof , but not placed on the outer edge to minimise the visual impact . Glass balustrades allow for lookout points right up to the edge of the building .
As part of the environmental education that takes place in the facility the building itself was designed to educate its visitors on how it is constructed and functions . The ramp on the
48 Helderberg