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Novia  |  SKU: NV001

Novia 500 Gauge (125 Micron) Virgin Grade Polythene VCL 2.7m x 50m 135m2

£90.00 Ex VAT
£108.00 Inc VAT
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Novia 500 is a polythene air-leakage barrier and vapour control layer (VCL) designed for use in wall, roof and floor applications, designed to be installed on the “warm” (interior) side of your walls, roof and floors. Pair with external breather membranes for the “cold” side and secure with Novia tapes for correct installation.

  • Translucent virgin grade polythene
  • Supplied in centre-folded roll
  • 2.7m wide to fit timber frames
  • CE Approved and CPR Compliant
  • Complies with BS EN 13984
  • Improves insulation performance
 Thickness: 125 Micron / 500 gauge
Length:  50m Roll
Width:  2.7m
Coverage: 135m2
Moisture Vapour Permeability: 0.68g/m2*d
Moisture Vapour Resistance: >250 MNs/g

 

Data Sheets & Information

  • Size
    2.7m x 50m
  • Coverage (m²)
    135
  • Thickness
    125 micron
  • Length
    50m
  • Width
    2.7m
  • Material
    Virgin Polythene
Need Help? Call our Team on 0115 6976 800
What is a Vapour Control Layer (VCL)

A vapour control layer (VCL), also known as a vapour barrier, is a material used in building construction to prevent the passage of water vapour through walls, ceilings, floors, or roofs. It is typically installed on the “warm” side of the insulation (typically the interior side) where it helps to control moisture levels within the building envelope. By blocking the movement of water vapour, a VCL helps to prevent condensation from occurring within the building structure, which can lead to issues such as mould growth, rot, and reduced insulation effectiveness.

How do I Apply a Vapour Control Layer?

A vapour control layer should be applied on the interior side of any wall, roof or flooring, over timber studs before the internal lining. It should be 100% sealed to the structure with double-sided butyl tapes, pre-applied to all areas where a fixing is to be made, and finished with metallised BOPP tapes to ensure a complete vapour seal.

It is best used in conjunction with a Breather Membrane applied to the exterior side of the structure.

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