Polydrain iD 450 Macro

The Product

POLYDRAIN PLP 400 is a synthetic drainage system made from expanded polystyrene. It has two sides: one flat, the other with studs.

It is recommended for flat roofs or those with a slope of < 3%. It is not recommended for use in windy areas, which make it difficult to install.

The advantages of POLYDRAIN PLP 400 :

  • Provides mechanical protection for
    waterproofing
  • Can complement thermal insulation
  • High-performance drainage
  • Easy to install
  • Prevents asphyxiation of vegetation roots by isolating the substrate layer from possible contact with flashes of water.
Polydrain iD 450 Macro

Technical data

POLYDRAIN PLP 400
Plate dimensions (length x width) 120 x 70 cm
Plate surface 0,84 m²
Thickness 4 cm
Dry weight

Weight at MWC (Maximum Water Capacity)

0.53 kg/m²

2.53 kg/m²

Perforation – diameter 10 and 18 mm
Settlement rate 7,9 %
Load-bearing floor area 30
Permissible compressive strength > 20 kN/m² compressive strength
Water retention 2 l/m² water retention