Visqueen Ultimate HC BLOK
A methane and VOC (vapour) barrier membrane.
Application
- Used in all building types to prevent ingress of volatile organic compounds.
- Also acts as a damp proof membrane.
- The barrier can be positioned above or below a solid concrete ground floor slab or above a precast suspended segmental ground floor system
Description
A highly flexible 0.5 mm thick co-extruded membrane manufactured using Visqueen’s advanced membrane technology and designed to comply with current guidance on Volatile Organic Compounds (VOCs) vapours and ground gases.
The barrier can also be used in all types of buildings to prevent the ingress of harmful levels of ground gases.
Features and benefits:
- Conforms to CIRIA C748 and BS 8485:2015. CE marked to EN 13967.
- Excellent VOC (vapour) and methane barrier resistance.
- Exceptional flexibility and puncture resistance.
- Comprehensively tested and validated test results.
- Easily welded, saving time and costs.
- Multi-functional with dual jointing methods.
General information
ColorGold on upper surface and white on the reverse. | Gold White |
Shape | Rectangular |
Size | 2440 x 41 000 mm. Roll. |
WarrantyDescription | See manufacturer's insurance document for warranty details. Consult manufacturer for further information. |
Uniclass 2015 | |
CAWS | D21/350 Gas-retardant membrane D21/38 Gas-retardant membranes |
Specification data - Plastics sheets Enhanced data
Purpose | Vapour control layer.Gas retardance. |
Standard | To BS 8485:2015 +A1:2019. |
Performance characteristics | - |
Tensile strength (minimum) | 4.91 kN/m. |
Tear resistance | 48.7 N. |
Elongation to break | 699%. |
Resistant to underground gases | Methane.Radon.Carbon dioxide.Benzene.Toluene.Ethyl benzene.O-Xylene.M-Xylene.P-Xylene.Hexane.Vinyl chloride.Tetrachloroethene.Trichloroethene.Naphthalene. |
Water vapour resistance (minimum) | 1034 MN·s/g. |
Third-party certification | BDA Certified. |
Physical properties | - |
Colour | Gold topside with white underside. |
Weight (minimum) | 49 kg. |
Dimensions | - |
Thickness (minimum) | 0.5 mm. |
Width (minimum) | 2440 mm. |
Roll length (minimum) | 41 000 mm. |
Product Reference | Visqueen Ultimate HC BLOK |
TensileStrength | 32.8 N/mm². |
Tensile strength CD | 33.1 N/mm². |
Elongation | 699 %. MD. 723 %. CD. |
Joint strength | 265 N. |
Impact resistance | 200 mm. |
Water vapour resistance | 1034 MNs/g. |
Water vapour permeability | 0.13 g/m²/d. |
Application temperature | See manufacturer's insurance document for warranty details. Consult manufacturer for further information. |
Environmental information
Country of material origin | United Kingdom |
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