• Fast Delivery
  • Expert Support
  • Low Trade Prices
  • Quality Products
  • Next-Day Delivery
  • Expert Support
  • Low Trade Prices
  • Quality Products
Visqueen Ultimate Gas Barrier NF-500Visqueen Ultimate Gas Barrier NF-500

Visqueen Ultimate Gas Barrier NF-500 Green Tint – 2.4m x 43.5m x 500 micron

Brand: Visqueen
Product Code: RS080664
In Stock

Visqueen Ultimate Gas Barrier NF-500 is suitable for use in all types of buildings to prevent the ingress of harmful levels of volatile organic compounds (VOCs), methane, carbon dioxide and radon. The membrane can be positioned above or below reinforced cast in situ concrete floor slabs, or above precast suspended segmental subfloors.

£709.92 incl. VAT
£591.60 excl. VAT

Qty:

 

Visqueen Ultimate Gas Barrier NF-500 is a co-extruded, multi-layer thermoplastic volatile organic compound barrier and gas barrier, 0.5mm thick (500 micron). The membrane is transparent with a green tint and supplied 2.4m x 43.5m in a single wound roll.

Usage:

Visqueen Ultimate Gas Barrier NF-500 is suitable for use in all types of buildings to prevent the ingress of harmful levels of volatile organic compounds (VOCs), methane, carbon dioxide and radon.

The barrier can be positioned above or below reinforced cast in situ concrete floor slabs e.g. ground bearing, suspended or raft, or above precast suspended segmental subfloors, e.g. beam and block floor.

The barrier can also be used as a high performance radon membrane and/or damp proof membrane. Where protection against VOCs or hydrocarbon contamination is required, the barrier system should be applied with welded joints.

Radon, carbon dioxide, methane and VOC protection – NHBC NF94 guidance: Visqueen Ultimate Gas Barrier NF-500 when installed with either welded or taped joints (welded when used for VOC protection) complies with NHBC Foundation NF94 publication, Hazardous ground gas – an essential guide for housebuilders, in Type A membrane locations in precast suspended segmental subfloors and reinforced cast in situ concrete floor slabs (ground bearing, suspended or raft).

In addition, Visqueen Ultimate Gas Barrier NF-500 when installed with welded joints complies with NHBC Foundation NF94 publication, Hazardous ground gas – an essential guide for housebuilders, in Type B membrane locations in reinforced cast in situ concrete floor slabs (ground bearing, suspended or raft).

For site or zone characteristic gas situations of CS4 and above, contact Visqueen Technical Services.

The barrier is not intended for use where there is a risk of hydrostatic pressure.

Features & Benefits:

  • Agrement certified – third party accreditation
  • Complies with NHBC Foundationโ€™s NF94 guidance for use in Type A and Type B membrane locations
  • Complies with CIRIA C748:2014 – industry standard for volatile organic compounds (VOC) protection
  • Complies with the methane gas transmission rate, mass per unit area and thickness requirements of BS 8485:2015 + A1:2019 – industry standard for methane and carbon dioxide protection
  • Also provides radon and damp proof membrane protection
  • Dual jointing methods – depending upon specification, lap joints can be taped or heat welded

Approvals & Standards:

  • Third party accreditation (BDA Agrement Certificate BAB-24-339-P-A-UK)
  • Complies with the methane gas transmission rate, mass per unit area and thickness requirements of BS 8485:2015 + A1:2019
  • Suitable for all Characteristic Gas Situation (CS) ground gas regimes
  • Complies with NHBC Foundation NF94 guidance for use in Type A and Type B membrane locations (non foil system)
  • Conforms to the specification requirements of NHBC Amber 1 and Amber 2 applications
  • Conforms to the specification requirements of BR 211:2023
  • UKCA UKNI CE to EN 13967:2012
  • Visqueen certified with Quality Management System ISO 9001:2015
  • Visqueen certified with Occupational Health and Safety System ISO 45001:2018
  • Visqueen certified with Environmental Management System ISO 14001:2015

System Components:

Property Test Method Units Compliance Criteria Result
Dimensions BS EN 1848-2 m – 2.4m x 43.5m
Nominal thickness BS EN 1848-2 mm +/-10% 0.5
Mass BS EN 1848-2 g/mยฒ +/-10% 480
Tensile strength – machine direction BS EN 12311-2 method B N/mmยฒ MDV 26.7
Tensile strength – cross direction BS EN 12311-2 method B N/mmยฒ MDV 26.1
Elongation at break – machine direction BS EN 12311-2 method B % MDV 906
Elongation at break – cross direction BS EN 12311-2 method B % MDV 902
Joint strength – taped joint BS EN 12317-2 N/50mm MDV 235
Joint strength – welded joint BS EN 12317-2 N/50mm MDV 401
Watertightness at 2kPa for 24 hours BS EN 1928 method A – Pass/Fail Pass
Watertightness at 2kPa for 24 hours after ageing BS EN 1296 (12 weeks) + BS EN 1928 method A – Pass/Fail Pass
Watertightness at 2kPa for 24 hours after alkali environment BS EN 1847 (28 days) + BS EN 1928 method A – Pass/Fail Pass
Resistance to impact BS EN 12691 method A mm MLV 300
Resistance to tearing – machine direction BS EN 12310-1 (nail shank) N MDV 270
Resistance to tearing – cross direction BS EN 12310-1 (nail shank) N ย MDV 255
Water vapour resistance BS EN 1931 method B MNs/g ย MDV 2,568
Water vapour permeability BS EN 1931 method B g/mยฒ/d ย MDV 0.09
Water vapour resistance factor BS EN 1931 method B ฮผ ย MDV 1.1 x 106
Water vapour diffusion equivalent air layer thickness BS EN 1931 method B SD in m ย MDV 514
Methane gas transmission rate – membrane BS ISO 15105-1 ml/mยฒ/day/atm ย MDV 13.2
Methane gas transmission rate – taped membrane joint BS ISO 15105-1 ml/mยฒ/day/atm ย MDV 13.7
Methane gas transmission rate – welded membrane joint BS ISO 15105-1 ml/mยฒ/day/atm ย MDV 15
Carbon dioxide gas transmission rate – membrane BS ISO 15105-1 ml/mยฒ/day/atm ย MDV 28.7
Carbon dioxide gas transmission rate – taped membrane joint BS ISO 15105-1 ml/mยฒ/day/atm MDV 30.2
Carbon dioxide gas transmission rate – welded membrane joint BS ISO 15105-1 ml/mยฒ/day/atm MDV 22
Radon gas diffusion coefficient – membrane PD ISO/TS 11665-13, method A mยฒ/s MDV (1.3 ยฑ 0.2) x 10-13
Static puncture resistance BS EN 12236 N MDV 1930
Tensile strength – machine direction ASTM D4885-01 kN/m MDV 8.8
Tensile strength – cross direction ASTM D4885-01 kN/m MDV 8.2
Resistance to static loading BS EN 12730 method C kg MDV 20
Tensile strain % – machine direction ASTM D4885-01 % MDV 400.6
Tensile strain % – cross direction ASTM D4885-01 % MDV 400.8
Tear resistance – machine direction BS ISO 34-1 method A (trouser tear) N MDV 60.6
Tear resistance – cross direction BS ISO 34-1 method A (trouser tear) N MDV 53.12
Tear resistance – machine direction BS ISO 34-1 method B (angle tear) N MDV 68.8
Tear resistance – cross direction BS ISO 34-1 method B (angle tear) N MDV 70.2
For VOC vapour and immersion testing (CIRIA C748 requirements), see BDA Agrรฉment Certificate

Please see our ourย Delivery policy page for full details of our delivery terms and conditions, including information on exclusions, geographical restrictions, third parties, and failed deliveries.

Delivery Timescales

We will endeavour to deliver all orders within 1-3 working days (subject to geographical restrictions). Please note, where delivery lead-times for individual orders may be subject to change, we will keep you informed directly by phone or email within 24 hours of your order being placed.

Deliveries will not be made on UK bank holidays, and in such cases will fall on the next working day.

Standard delivery hours are between 8am and 6pm, Monday to Friday. If you are not available to accept the delivery when it is attempted, then a failed delivery charge will be applied (see theย Delivery pageย for full details).

Delivery Communications

We aim to dispatch and deliver all our products within their specified time frames. You will get notified by BaseTec via email when your products have been dispatched. This will include details of your order and the expected delivery time. BaseTec will contact you via email or phone if there are any delays in picking your order or after dispatch.

If any products are out of stock or unavailable at the time of ordering, the BaseTec team will contact you by phone or email to discuss your options.

Reviews

There are no reviews yet.

Be the first to review “Visqueen Ultimate Gas Barrier NF-500 Green Tint – 2.4m x 43.5m x 500 micron”

You may also like…

Shopping Basket
INC VAT EX VAT