SPY waterproofing membrane is manufactured from high-quality distilled bitumen modified with the SBS to provide an extremely low cold flexibility up to -20°C. Reinforcement is provided by the 200 g/m² nonwoven fabric spun-bond polyester to give ultimate elongation and to provide the membrane with the required resistance to heat aging, puncture and rotting.


The lower surface is covered with a burn-off polyethylene film, while the upper surface is covered with polyethylene film, fine sand, granules, or colored slates when used as the exposed top layer to guard against UV and to provide a weather protection surface with appealing decorating color.

Key Features.

  • Excellent elasticity.
  • High flexibility at low temperatures.
  • Resistance to aging.
  • High puncture and tear resistance.
  • Good resistance to acids, sulphates and chlorides.

Packaging Information.

  • Dimension: 1×10 m/roll
  • Thickness: 4 or 5 mm
  • Weight per roll: 50 or 62 Kg
  • Reinforcement: Nonwoven Polyester 200g/m²

Application Field.

Due to its very low cold pliability, SPY is used in areas where severe weathering conditions are expected such as:

  • Roofs (reinforced concrete, prefabricated concrete, metal and timber deck).
  • Multi-story car parks.
  • Underground foundations, basements, and retaining walls.
  • Reservoirs, basins and canals.
  • Swimming pools.

Application Method.

  • Lay down the rolls so that the lower face with polyethylene film is bonded to the substrate.
  • To fix the sheet to the substrate, use a propane gas burner to melt off the polyethylene film and a thin layer of bitumen while unrolling and laying the membrane. Side laps 100mm and end laps 150mm.
  • The membrane may be loosely laid, partially or fully bonded, depending on the structure and the specifications.