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Visqueen CM20 Membrane - Studded cavity membrane

Verified by manufacturer 3 months ago

Visqueen

20 mm studded cavity membrane formed from 1 mm thick high density polyethylene (HDPE).

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Application

Suitable for new and retrofit substructure walls, floors, vaults and tunnels.

Description

Visqueen CM20 Membrane is a 20 mm studded cavity membrane formed from 1 mm thick high density polyethylene (HDPE). The cavity membrane is black in colour and supplied in rolls of 2 x 20 m which includes a 100 mm stud free overlap flange along the length of the roll.


Features and benefits:

  • Suitable for use as part of a Type C waterproofing protection system in accordance with BS 8102: 2022.
  • Compliant with the requirements of NHBC Chapter 5.4 as a method of waterproofing protection.
  • Suitable for heritage buildings and conservation projects - causes little or no damage to the existing structure.
  • 1 mm HDPE membrane - acts as a radon barrier.
  • Multi-use.


See manufacturer's literature for installation and preparation guidelines.

General information

Color

Black

Finish

Smooth

Material

High density polyethylene (HDPE)

Shape

Rectangle

Length

20000 mm

Width

2000 mm

Height

20 mm

Uniclass

Pr_25_57_51_36 High-density polyethylene (PE-HD) studded sheetsPrimary

CAWS

J40/47 High-density polyethylene/ polypropylene studded cavity drain membrane

J40/290 High-density polyethylene/ polypropylene studded cavity drain membrane

Specification data - High-density polyethylene (PE-HD) studded sheets

Standard

To BS 8102: 2022.

Third-party certification

BBA certificate pending, CE marked to EN 13967:2012+A1:2017.

Stud height

20 mm.

Sheet thickness

1 mm.

Weight (minimum)

1 kg/m².

Colour

Black.

Performance characteristics

-

Fire performance

To BS EN 13501-1, Class F.

CompressiveStrength

To BS EN ISO 25619-2, 170 kN/m².

TensileStrength

To BS 12311-2, 416 N (MD); 488 N (CD).

Static load resistance

To BS 12730, >20 kg.

InternalWaterVolume

14.6 L/m².

Application temperature

Recommended should be used above 5°C.

Radon diffusion

To ISO/TS 11665-13, method C, 6.5x10¯¹² m²/s (Unjointed); 1.8x10¯¹² m²/s (Jointed).

Watertightness

To EN 1928, pass (At 60 kPa - 24 hours).

Literature

Visqueen CM20 Membrane

Visqueen CM20 Membrane

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