Waterproofing below the water table with Wolfin professional waterproofing

Techton Group, architects, have designed a superb new house immediately adjacent to Botany Bay at Sandringham.

The views are completely panoramic and the house has been designed so that the bay seems like an extension of the house.

Because of the proximity to the water and the elegant finishes the builders and architects were concerned that the structure should be completely waterproof.

Accordingly the Wolfin System was specified for the major waterproofing components of the house. Wolfin was specified on the roof, balconies and the basement home theatre.

The home theatre was built at a level which meant that at high tide the floor of the room was some 3 metres below the high-water mark.

This part of the house was completed some 2 years ago (December 2004) and current inspection (December 2006) shows that the sump and pump installed at the bottom of the room are completely dry and the pump seals have not been wet at any time - see photo of sump pit.

Because of cost pressures some of the further works were not waterproofed using Wolfin but were instead done with a "Wolfin-look-alike." As a result of the failures of this system the Wolfin system has just been installed on the first of these areas - an expensive exercise as some of the elaborate stone works had to be removed first and then relaid after the Wolfin S was installed.

Because of the proximity to the water Wolfin's Stainless Steel profile system was used rather than the normal Wolfin galvanised steel.

The Wolfin installation was carried out by Duraseal Waterproofing, an experienced licensed Wolfin Applicator, so that Wolfin themselves were able to issue a combined labour and materials warranty on the waterproofing - as opposed to the usual separate labour and materials warranties.