Double Drain
RIW Double Drain is a cold applied
impermeable high density polyethylene profiled sheet
incorporating a permeable geotextile filter fabric designed
to prevent ground water reaching a structure and enhance
the performance of the waterproof membranes. It can
be used in conjunction with a primary waterproofing
system or on its own to isolate the structure from the
surrounding soil and relieve hydrostatic pressure by
promoting the flow of ground water away from the face
of the structure to land drainage. The system can also
be used to provide excellent protection to a primary
waterproofing system against backfilling and mechanical
damage.
Typical Uses
- External Tanking
- Retaining Walls
- Podium Decks
- Planters
Features & Benefits
- Good impact resistance
- Relieves hydrostatic water pressure
- High drainage capacity
- Quick and easy to install
- Isolates structure from surrounding earth
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