Increasingly in Melbourne we are seeing the developments taking space below ground. Small blocks in the inner city where going up has its limits, the only other option is down. With going down a whole host of potential water ingress issues arise and require long term solutions. At Aquaseal we have utilized the sheet waterproofing systems provided by Cetco to completely wrap the substructure. Voltex waterproofing connecting to swelltite. Mechanical pressure flashings and overlaid liquids. Using soil pressure and hydrophillic expanding clay these sheets can self heal, tolerate subsidence and shifting in the foundations.