In soil retaining situations such as basements and vaults, the DELTA sealed system is recommended. The membrane selection depends on the required finish and flow rate if applicable. All the normal options are available for finishes to the system, including plastering direct when using DELTA-PT. All membrane junctions, fixing points, service entries and other protrusions are sealed with the DELTA range of sealing products. Where active ground water is evident or expected drainage of one form or another should be incorporated into the specification. This should be capable of controlling any free water that enters the cavity, through preformed channels or sumps, to be drained away naturally or by mechanical pumps.

Our technical staff are available to give advice in this respect.