Novia 500G Vapour Control Layer
Our lightweight and easy to install polythene VCL
Novia 500 VCL is a low-cost, blown polythene material, suitable for use as a vapour control layer within the walls of timber frame constructions, or where control of the passage of water vapour is required.
This product also performs the additional function of an air-leakage barrier, to prevent losses due to unwanted convection flows. We advise the use of Novia double sided butyl and metallised BOPP tape to ensure a complete barrier integrity throughout the entire life of the product. For difficult areas to seal with tapes, or for additional support in certain applications, Novia AirSeal 310 is available. Novia 500 VCL should be used in combination with Novia breather membranes to provide an air-tight and vapour resistant system.
Novia 500 VCL is fully CPR compliant and is UKCA Approved to EN 13984.
Novia 500 VCL is available on NBS Chorus and NBS Source software packages. Full information can be found for NBS specification with the table below. The links will open a pop up window with full specification information.
- Virgin grade polythene
- Lightweight cost-effective solution
- Translucent green tint - see-through for accurate installations
- 500 gauge / 125 micron thickness
- Roll size 2.7m x 50m (135m2)
- UKCA approved product
- Use in conjunction with Novia breather membranes
Installation guidelines can be found on the product datasheets using the links to the left.
To install the membranes, we recommend using the Novia double tape system.
Our Double Sided Butyl Tape is used on the laps and edges of the membrane, with either Metallised BOPP Tape or Aluminium Foil Tape then used to complete the seal, keeping down any excess membrane which may get caught in the wind. For difficult areas to seal with tapes, or for additional support in certain applications, Novia AirSeal 310 is available.