Novia 500G VirginPoly AVCL
Our light weight 125 micron polythene air & vapour control layer
Product Overview
Novia® 500 Gauge VirginPoly is a virgin grade, single-ply blown polythene vapour check and air leakage barrier for use as an internal Air & Vapour Control Check (AVCL). The material meets BS EN 13984 and is CE marked. Novia® 500 Gauge VirginPoly provides some moisture vapour resistance and is suitable for use in insulated wall, floor or roof applications where there is a relatively low risk of interstitial condensation occuring. Novia® 500 Gauge VirginPoly also minimises air leakage and energy heat losses, improving the long-term energy efficiency of constructions. It is a low cost solution which is supplied centre-folded in 2.7m roll widths and is ideal for use in timber frame constructions, including garden rooms/buildings. Novia® 500 Gauge VirginPoly is a transluscent green tinted polythene, with no text or images, which allows for ease of installation to the structural framework.
Sitting below the Novia® 1000 Gauge and Novia® 1200 Gauge membranes with regards to thickness and quality, the Novia® 500 Gauge VirginPoly is fully CE marked as a vapour control layer.
Novia® 500 Gauge VirginPoly meets the requirements for CE marking, originally introduced under the 2013 Construction Products Regulations with CE marking. Under this European directive, all products covered by a current hEN (harmonised European Norm) must comply with the new standard. Third party accreditation is no longer sufficient. This has been adapted to UKCA following the UK departure from the EU, but the UKCA mark is no longer a condition of sale onto the UK construction market.
Novia® 1000 Gauge VirginPoly 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.
Key Features
- Roll size: 2.7m x 50m (135m2)
- CE approved to BS EN 13984
- Virgin grade polythene
- Moisture vapour resistance for low condensation risk buildings
- Lightweight, low cost solution
- Translucent green tint, for accurate installations
- Use in conjunction with Novia breather membranes
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Installation Tips
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.