RIW Structureseal is a Type A pre-applied tanking system conforming to BS8102:2009, suitable for Grade 1, 2 and 3 basement protection. The sodium bentonite clay swells on contact with water, creating a self-sealing barrier that accommodates minor structural movement without loss of waterproofing integrity. No extensive surface preparation is required, and the membrane can be installed in wet weather conditions and at low temperatures, making it well suited to demanding below-ground construction programmes. Benefits Pre applied tanking system, that bonds to poured concrete Needle-punched geotextile composite for consistent bentonite distribution Self-sealing properties — swells on contact with water Factory-controlled thickness BBA certified Good to know No extensive surface preparation required Used with RIW Granules and RIW Sealing Compound for detailing Resistant to 70m head of hydrostatic pressure Typical applications include basement tanking, sub-structure & foundation slabs, party wall construction, retaining walls and under slab bonded membrane.
