The 1860 star-shaped dimples and an air volume of approximately 5 l/m2 ensure efficient protection of the waterproofi ng layer and proper ventilation between wall and soil.
Product description
Advantages
  • It guarantees excellent ventilation of the walls.
  • It is a valid substitute for subfoundation lean concrete, and forms a waterproof barrier against the capillary rising of humidity.
  • It ensures excellent drainage and the channelling of large quantities of water.
  • The star-shaped dimples guarantee optimal resistance to compression.
  • Available in different heights.
Description
  • Dimpled membrane in HDPE for protection and drainage of underground walls
Technical Data
Material
High-density polyethylene (HDPE)
Colour
Black
Certified mechanical resistance
320 kN/m2 (32 t/m2)
Dimple height
approx. 7 mm
Number of dimples per m2
approx. 1860
Air volume between dimples
approx. 5 l/m2
Drainage capacity
4,6 l/s/m
Thermal stability
From -40°C to +80°C protect from UV rays
Physical-chemical properties
Resistant to chemical agents, resistant to roots, does not pollute the water-bearing stratum, resistant to contamination from fungi and bacterial, non degradable
Combustion class
F - DM 15/03/05
Size
1 - 1,5 - 2 - 2,5 - 3 - 3,5 - 4 x 20 m
Dimensional tolerances
± 4%
Packing
1,0 m height: 24 rolls
from 1,5 to 2,5 m height: 12 rolls
from 3,0 to 4,0 m height: 16 rolls
Application

Garantie

Laying for the protection of foundation walls

1) Unroll the dimpled membrane with the dimples facing the wall, already waterproofed, making sure you overlap adjacent rolls longitudinally by about 20 cm. For greater protection, join the edges of the two rolls using waterproof bituminous strips.

2) Fix guttabeta® profile to the edge and nail it down using the JNH 40 plugs or steel nails.

3) Then fix the membrane using fixing buttons or steel nails.

4) Once the fixing operation is done, fill in with soil.

5) Prior to the fixing, make sure it is compatible with the waterproofing system of the wall.

Laying as an alternative to the concrete layer for foundations and/or barrier to capillary rising of humidity.

1) After compacting the soil, place a layer of guttatex® geotextile fabric over it, making sure the edges overlap by about 20 cm.

2) After unrolling guttabeta® Star, position gutta® WZ electro-welded net, supporting it with the special spacers.

3) Cast the concrete slab. The flooring will be protected against rising humidity, and guttabeta® Star will contribute to making the structure more stable.