Polythene Vapour Control Layer from Novia 1000 Gauge - 100m2 DIY Kit

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£174.24 Incl. VAT
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Product Description

Novia 1000 VCL is a medium specification, virgin grade blown polythene material, suitable for use as a vapour control layer within the walls of timber frame constructions, or where the control of the passage of water vapour is required. Sitting between the 500G and 1200G membranes, the 1000G Polythene remains fully CE Approved as a vapour control layer.


Please note we have put together a 100m2 DIY kit which consists of 1x 4m x 25m 1000 gauge Vapour Control Layer, 2x 30m x 30mm butyl tapes & 1x 45m x 75mm foil tape for your convenience as well as being cheaper overall than the individual items combined and Novia AirSeal310 Sealant 310ml. The DIY Kit has been developed not only to help you and not only in terms of convenience but also to ensure you are ordering the correct number and correct types of tapes with your vapour control layers.

Vapour Control Layers

VCL’s are designed for use on the inside (warm side) of insulated buildings to manage the flow of water-vapour, which is a natural by-product of normal building use. Without the use of these membranes within the construction, there is significant risk of condensation within the building structure, potentially leading in the long-term to building damage, and in the short term to substantially increased heating and cooling costs. As little as 3% moisture deposited within the building’s insulation, has been shown to negatively affect insulation performance by up to one third.

This product also performs the additional task of an air-leakage barrier, to prevent losses due to unwanted convection flows. We also advise the use of Novia compatible butyl and foil sealing tapes to ensure a complete vapour seal is maintained thought the entire life of the product. Novia 1000 VCL should be used in combination with Novia breather membranes to provide an air-tight and vapour resistant system.

Novia 1000 VCL is fully CPR compliant and is CE Approved to EN 13984:2013.


Length : 25m.
Width : 4m.
Roll size : 100m2.
Roll weight : 23kg.
Water vapour resistance : at least 500 MNs/g to EN 1931.
Material : virgin polythene.
Material thickness : 1000 Gauge / 250 Micron (nominal).
Colour : green tint.
CE Approved : to EN 13984:2013.


Novia VCL products are sealed using one of our double-sided butyl tapes, generally using an overlap of 75mm to 100mm, but with certain products we do state that a larger overlap is required. A lap-seal is then applied on top using one of the foil tapes. The wider the tape used, then thestronger the seal will be, so choose a tape based on your own particular application and budget.

We also suggest that in order to improve overall airtightness, butyl tape is preapplied to any studs or timbers at the points where fixing is to be made. By preparing the fixing point in this way, when staples etc are applied to either the membrane itself or the final wall covering such as plasterboard, then the achieved seal will be far better.


WIDTH 4000mm LENGTH 25m


Permeability Vapour Permeable
Air Tight
Vapour Barrier
Roll Size 100m2

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Questions & Answers


What is the best VCL to use for a domestic application?


There are many factors that effect the choice of VCL, Novia VC2, Novia 500 and Novia 1000 are all possible solutions but check with us or your architect for full guidance.


Are your VCLs airtight?


Yes all Novia VCLs are airtight. The joints and overlaps must be taped to maintain a completely airtight installation.


Do I need tapes with a VCL?


Tapes are an essential part of ensuring a VCL is air and moisture tight. Without sealing tapes a VCL would leak and be ineffective.


Do Novia VCLs have certification?


Yes, all Novia VCLs are manufactured to strict BS EN 13984 requirements, which is vital when looking at polythene based VCLs.

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Product Reviews

5 / 5 2 reviews
25th August 2020
Well packed, delivered next day and does the job. Would definitely recommend.
Nathan Truslove
15th March 2020
All the products are good quality, it's nice to have exactly the correct amount to finish your job.
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Polythene Vapour Control Layer from Novia 1000 Gauge - 100m2 DIY Kit

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