Visqueen NF-Vapour Barrier - Air Vapour Control Layer Membrane
Verified by manufacturer 19 hours ago
Multi-layer thermoplastic vapour barrier.
Application
Used in low, medium and high condensation risk buildings to reduce the risk of interstitial condensation occurring within the structure, as well as improving the airtightness of the building.
The barrier restricts the passage of warm, moist air from within the building from permeating into the floor, wall or roof structure.
The barrier is designed to be installed to the warm side of floors, walls and roofs. It is suitable for all BS 5250:2021 humidity classes including those with high internal humidities e.g. laundry facilities and swimming pools.
Description
A co-extruded, multi-layer thermoplastic barrier, 0.4 mm thick (400 micron). The membrane is transparent with a blue tint and supplied 2.4 x 43.5 m in a single wound roll.
Features and benefits:
- Used within floor, wall and roof constructions.
- Suitable for all BS 5250:2021 humidity classes - prevents damage to structure and insulation.
- Single wound roll.
Approvals and standards:
- Air leakage tested to BS EN 1026:2016.
- UKCA UKNI CE to EN 13984:2013 - achieves Building Regulation and warranty provider requirements.
Should be installed in accordance with the manufacturers recommendations.
General information
Color | Clear Blue |
Finish | Other |
Material | Plastic Guidance for specification option: Thermoplastic. |
Shape | Rectangle |
Length | 43500 mm |
Width | 2400 mm |
Height | 0.4 mm |
Warranty description | Manufacturer guidanceSee manufacturer's insurance document for warranty details. Consult manufacturer for further information. |
Uniclass | |
CAWS | J31/10 Warm deck roof coating K11/215 Plywood floating floor K11/125 Battened particleboard floating floor K11/20 Battened particleboard floating floor K11/245 Cement bonded particleboard floating floor K11/115 Battened plywood floating floor H31/45 Air and vapour control membrane H92/780 Air and vapour control layer K21/20 Composite laminated flooring K21/10 Wood laminate flooring K11/145 Battened cement-bonded particleboard floating floor H30/30 Air and vapour control membrane J42/395 Air and vapour control layer K11/235 Oriented strand board floating floor H30/261 Air and vapour control membrane H31/261 Air and vapour control membrane P10/60 Air and vapour control layer J41/395 Air and vapour control layer J31/330 Air and vapour control layer J21/10 Warm deck roof coating J41/10 Reinforced bitumen membrane warm deck roof covering K21/146 Laminate flooring K21/145 Composite laminate flooring K21/140 Battened wood laminate flooring K21/130 Battened wood floating floor K21/120 Battened wood flooring K21/115 Wood laminate flooring K21/111 Wood floating floor K21/110 Wood flooring P10/310 Air and vapour control layer K11/135 Battened oriented strand board floating floor J42/10 Warm deck roof covering K11/225 Particleboard floating floor K11/25 Particleboard floating floor J21/395 Air and vapour control layer K11/795 Wall lining on metal framing |
Specification data - Plastics sheets
Classification data | |
Product reference | Visqueen NF-Vapour Barrier. |
Material | Thermoplastic. |
Purpose | Vapour control layer. |
Standard | To BS EN 13984. |
Performance characteristics | |
Tensile strength (minimum) | Machine direction: 26.3 N/mm². Cross direction: 29.4 N/mm². Manufacturer guidanceTo BS EN 12311-2. |
Tear resistance | Machine direction: 265 N. Cross direction: 240 N. Guidance for specification option: Consult manufacturer's literature for trouser and angle method data. Manufacturer guidanceTo BS EN 12310-1. |
Elongation to break | Machine direction: 607%. Cross direction: 921%. Guidance for specification option: Consult manufacturer's literature for elongation yield data. Manufacturer guidanceTo BS EN 12311-2. |
Water vapour resistance (minimum) | 2296 MN·s/g. Manufacturer guidanceTo BS EN 1931. |
Form | Multi-layer. |
Physical properties | |
Colour | Blue/ clear. |
Weight (minimum) | >370 g/m². |
Dimensions | |
Thickness (minimum) | 400 µm. |
Width (minimum) | 2.4 m. |
Roll length (minimum) | 43.5 m. |
Joint strength | Taped joint: 217 N/50 mm. Welded joint: 405 N/50 mm. Manufacturer guidanceTo BS EN 12317-2. |
Watertightness | Pass. Guidance for specification option: Watertightness at 2 kPa for 24 hours - BS EN 1928. Watertightness at 2 kPa for 24 hours after ageing - BS EN 1296. Watertightness at 2 kPa for 24 hours after alkali environment - BS EN 1847. |
Impact resistance | 200 mm. Manufacturer guidanceTo BS EN 12691. |
Water vapour permeability | 0.08 g/m²/d. Manufacturer guidanceTo BS EN 1931. |
CBR puncture resistance | 1620 N. Manufacturer guidanceTo BS EN 12236. |
Yield strength | Machine direction: 8 kN/m. Cross direction: 7.3 kN/m. Manufacturer guidanceTo ASTM D4885. |
Air leakage | 0 m³/h/m² @ ±100 Pa. Manufacturer guidanceTo BS EN 1026. |
Resistance to static loading - 20kg load | 15 kg. Manufacturer guidanceTo BS EN 12730. |
Application temperature | Recommended should not be used below 0°C. |
Sustainability data
Material | Plastic Guidance for specification option: Thermoplastic. |
Expected Life | Lifetime |
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