Tanking refers to the practice of completely waterproofing any area below ground. There is some debate around what constitutes a tanking membrane; in our eyes a tanking membrane is capable of withstanding constant hydrostatic pressure without failure. In order for a building to be considered fully tanked all areas below ground would be fully encapsulated in a membrane like our Volclay Voltex (BRANZ appraised membrane) as a true tanking membrane.
For habitable spaces below grade we strongly recommend using a true tanking membrane (Volclay) because almost every site will experience some form of hydrostatic pressure over the lifetime of the building.
VOLTEX is designed for below-ground vertical and horizontal structural foundation surfaces. Typical applications include backfilled pre-cast panels and concrete walls, earth covered roofs, structural slabs, tunnels and property line construction.
VOLCLAY SWR is the ONLY bentonite BRANZ appraised bentonite membrane for use in salt water.
SWELLTITE is designed for waterproofing below-grade vertical and horizontal structural surfaces, as well as, above grade split-slab construction used with plaza areas, parking garages and sports stadiums.
WATERSTOP-RX Applications include both vertical and horizontal non-moving concrete construction joints, new to existing concrete construction, irregular surfaces, and around through-wall penetrations, such as plumbing and utility pipes. Additionally Waterstop-RX can seal around concrete pilings and steel H-piles passing through the slab. Waterstop-RX works in both continuous hydro-static and intermittent hydro-static conditions
AQUADRAIN 15X drainage sheets are designed to replace or complement aggregate drainage backfills. It is designed primarily for vertical sub-surface applications requiring a high compressive strength and high flow capacity. Applications include foundation walls, retaining walls, bridge abutments, planters, tunnels and other earth-covered structures.