Delta Amphibia is a fully-bonded, multi-layer, co-extruded waterproofing system for below-ground construction in residential and commercial applications. 

This robust, tough and flexible waterproofing membrane is reactive to contact with water, self-repairing, self-sealing and self-fastening to concrete.

It can be applied vertically or horizontally and used in below-ground constructions ranging from basements, cellars and storage facilities to tunnel linings and lift pits.

Delta Amphibia has a calibrated non-woven fabric on the inner face/side in contact with fresh concrete which allows the mechanical adhesion of the membrane to the structure.

Delta Amphibia pre- and post-applied membrane system has four layers:

  • Tight Barrier – a fully watertight layer
  • Core – a super-expanding safety layer, self-sealing and self-healing
  • Active Barrier – a hydro-reactive layer, expansion-controlled, for self-sealing overlaps
  • Bond – a non-woven geotextile that self-fastens to concrete

It is produced in two thicknesses and two widths.

Features

  • Cold application with easy visual inspection of correct installation
  • Resistant to groundwater
  • Self-sealing overlappings
  • Absolute impermeability with no side seepage of water
  • High puncture resistance
  • Immediate mechanical protection, self-repairing also on accidental holes
  • High resistance to hydraulic load
  • High flexibility and capacity to bridge cracks
  • Total adhesion to the reinforced concrete structure
  • Easy passage of connecting reinforcements with self-sealing holes
  • BBA Certified

In addition, Delta Amphibia 1.6mm is:

  • Resistant to aggressive natural agents contained in the ground
  • Usable in the presence of salt/brackish water

Applications

  • Multi-storey underground constructions
  • Cellars, garages, tavern, technical rooms, underground rooms in general
  • Tunnels, underpasses, and similar infrastructures
  • Inground pool waterproofing
  • Existing cellars, garages, tavern, technical rooms, underground rooms in general
  • Existing tunnels, underpasses, and similar infrastructures
  • Elevator pits/lightwells

Products

Delta Amphibia 1.3mm

Delta Amphibia 1.6mm

Installation

1.8m x 20m roll, equivalent area 36m²

0.9m x 10m roll, equivalent area 9m²

Specification

BS 8102:2009 Code of practice for protection of below ground structures against water from the ground

NBS J40 / 130 – Flexible Sheet Tanking / waterproofing