DELTA® GEO-DRAIN Quattro - Waterproofing and drainage system

DELTA® GEO-DRAIN Quattro - Waterproofing and drainage system

Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

Delta Membrane Systems Ltd

A four-ply material for use as a compact protection and drainage system for waterproofing in building construction. 

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A four-ply material for use as a compact protection and drainage system for waterproofing in building construction.


  • The four-ply construction enables water to be drained off before reaching the waterproof coating.
  • Suitable for vertical gas (methane and Radon) drainage when combined with a classical filtration gravel layer underneath the floor slab. The top apertures of the drainage sheet should be covered with a layer of gravel to enable the gas to escape into the ambient air without difficulty.

General information


Polypropylene, high-density polyethylene

Uniclass 2015

Pr_25_57_65_60 Plastics sheetsPrimary


J40/295 Geocomposite studded cavity drainage/ venting membrane

Q37/350 Drainage layer

Specification data - Plastics sheets

Product Reference

Delta®-Geo-Drain Quattro


Delta®-Geo-Drain Clip

Attachment clip for fastening Delta®-MS-Profile.

Delta®-Stop Pin

Adhesive pin to facilitate the installation of the dimpled sheet.


Nylon percussion plug for concrete or masonry.

Delta®-MS Knopf

Washer fastening.

Delta®-MS Profile

Brown moulding cap to protect the upper edge of the sheet.


Moulding cap for application to insulation boards (60–100 mm).

Delta®-Terraxx-Schraube fixing

For fastening to perimeter insulation boards.

Standard product features


  • Layer one: Micro-perforated slip film distributes permanent soil pressure, and allows any water penetrating between the waterproofing and the slip film to escape into the laminated drainage layer.
  • Layer two: Laminated cloth absorbs impacts and serves as a backup drainage layer.
  • Layer three: High-density polyethylene dimpled sheet with self-sealing edge creates a maximum capacity drainage layer that covers the entire surface.
  • Layer four: Polypropylene permanent filtration geotextile fused to the dimpled sheet to prevent dimple structure from clogging.

Technical data:

  • Conforms to CE requirements and those of BS EN 13252, Certificate No. 0799-CPD-13.
  • Stud height: 9 mm.
  • Compressive strength (transient loading): Approximately 400 kN/m².
  • Compressive strength (permanent loading): Approximately 90 kN/m².
  • Installation depth (maximum): 10 m.
  • Service temperature range: -30°C to +80°C.
  • Joints have a self-adhesive edge strip.
  • Delta® dimpled sheets are rot-proof, resisting saline solutions, inorganic acids, alkalines, and polar liquids.
  • They are proof against attack or modification by any of the minerals, humic acids, and bacterial catabolic products that naturally occur in the soil, as well as by bacteria, fungi, and micro-organisms.
  • The response of all sheet types to soil or underground water is completely neutral, nor will they leach any harmful and/ or ecologically doubtful substances.
  • Care should be taken to ensure that they are not permanently exposed to UV radiation.

Digital objects
PlatformCompatibleVersionCertified to
IFC2X3 8 1.3
- 1.0
- 1.0
- 1.0
Revit 2016 9 2.0
Download now from NBS National BIM Library
Third party certifications
  • CE: Conforms to CE requirements and those of BS EN 13252 - Certificate No. 0799-CPD-13
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