Novia  |  SKU: 49037817610587

Novia 500G AVCL - 2.7m x 50m

£77.70 GBP
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Product Datasheets

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This product is sold by the roll

Description

Novia® 500 Gauge VirginPoly is a virgin grade, single-ply polythene Air & Vapour Control Layer (AVCL) designed for use in insulated walls, roofs, and floors where there is a relatively low risk of interstitial condensation. Installed on the warm side of the building envelope, it minimises air leakage and moisture vapour penetration, helping to protect the structure and improve insulation performance.

Ideal for timber frame constructions, including garden rooms and buildings, Novia® 500 Gauge VirginPoly is translucent green for ease of installation and is fully compliant with BS EN 13984 and CE marked. When used in conjunction with Novia® breather membranes and properly sealed with Novia® AVCL tapes, it supports energy-efficient, condensation-resistant construction.

Specifications

  • Length
    50m
  • Width
    2.7m
  • Material type
    Virgin grade polythene

Key Features

  • Virgin-grade polythene material
  • Lightweight and cost-effective solution
  • Translucent green tint for precise installation
  • 500 gauge / 125-micron thickness
  • Roll size: 2.7m x 50m (135m²)
  • UKCA approved

Where to use

Within the walls of timber frame constructions or where vapour control is needed: Novia 500G AVCL (Air and Vapour Control Layer) is good to use within the walls of timber frame constructions or where vapour control is needed because it effectively regulates the passage of water vapour through the building envelope. By providing a strong barrier against moisture, it prevents condensation from forming within the structure, protecting insulation and timber from potential dampness and damage. This control helps to maintain the thermal efficiency of the building and contributes to the long-term integrity of the construction.

Frequently asked questions

What is Novia 500G AVCL?

Novia 500G AVCL (Air and Vapour Control Layer) is a high-performance, reinforced polyethylene membrane designed to control the passage of air and vapour in building structures. It helps prevent air leakage and moisture buildup, enhancing energy efficiency and protecting insulation in walls, roofs, and floors.

What are the key features of Novia 500G AVCL?

Novia 500G AVCL is highly durable due to its reinforcement, offering excellent air and vapour control. It is easy to install and is suitable for use in a range of applications, including residential and commercial buildings. The membrane helps reduce condensation, improves airtightness, and increases the overall energy efficiency of a structure.

How do I install Novia 500G AVCL?

To install Novia 500G AVCL, ensure surfaces are clean and dry. Unroll the membrane and fix it to the building frame or surface using appropriate fixings, such as staples or battens. Overlap the joints by at least 100mm and seal all overlaps and penetrations with Novia sealing tape to ensure an airtight installation.

Can Novia 500G AVCL be used in both walls and roofs?

Yes, Novia 500G AVCL is versatile and can be used in both wall and roof applications. Its high performance in controlling air and vapour movement makes it suitable for use in multiple parts of the building envelope.

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A roll of Novia 500G AVCL displayed on a white background
Novia
Novia 500G AVCL - 2.7m x 50m
£77.70 GBP

Length

50m

Width

2.7m

Edge

N/A

Fire rating

N/A

Compressive strength

N/A

Density

N/A

Thermal conductivity

N/A

Material type

Virgin grade polythene
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