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Original price was: £239.28.£227.32Current price is: £227.32. Inc VAT
Free Delivery on Novia orders over £1200 (incl VAT)
Original price was: £239.28.£227.32Current price is: £227.32. Inc VAT
Free Delivery on Novia orders over £1200 (incl VAT)
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Novia VC4000 FR Reflective is a premium, high-performance, fire-resistant reflective Air and Vapour Control Layer (AVCL) designed for insulated roof and wall applications requiring very low moisture vapour permeability. Combining Class B-s1,d0 reaction-to-fire performance with a 98% reflective surface, VC4000 FR provides air and vapour control while also contributing to improved thermal performance when correctly installed adjacent to a suitable cavity.
The membrane is UKCA approved to BS EN 13984 and achieves Class B-s1,d0 to EN 13501-1 under the manufacturer’s specified conditions. Novia also specifies VC4000 FR as suitable for high-rise applications, subject to the requirements of the complete construction and applicable building regulations.
With 98% reflectivity, the membrane can improve both U-values and R-values when correctly installed with the reflective face adjacent to a 25mm cavity.
Supplied as a 1.5m x 50m roll, each roll provides 75m² nominal coverage.
Key benefits include:
Novia VC4000 FR is designed for insulated construction where high moisture vapour resistance, airtightness, enhanced fire performance and reflective thermal performance are required.
Typical applications include:
The membrane should be installed on the appropriate side of the insulation according to the design of the complete construction.
Novia VC4000 FR performs two important functions within an insulated building element.
It acts as an:
Air Leakage Barrier
helping to restrict uncontrolled air movement through the building envelope.
It also acts as a:
Vapour Control Layer
providing high resistance to the movement of moisture vapour through the construction.
Combining these functions within one AVCL can help create a more controlled and energy-efficient building envelope when correctly designed and installed.
Novia VC4000 FR is designed to provide very low moisture vapour permeability.
This makes it suitable for insulated roof and wall applications where a high level of vapour resistance is required.
Restricting the movement of moisture vapour from the internal environment into colder areas of the building fabric can help to minimise the risk of interstitial condensation.
The complete construction should still be assessed according to its specific condensation risk and moisture management requirements.
Interstitial condensation can occur when moisture vapour moves into a building element and reaches a sufficiently cold part of the construction.
Novia VC4000 FR provides high moisture vapour resistance, helping to control this movement as part of an appropriately designed roof or wall.
Novia states that the membrane can help contribute towards the requirements of BS 5250.
The condensation performance of the complete construction should be considered rather than relying on the membrane in isolation.
Novia VC4000 FR incorporates a 98% reflective surface.
When correctly positioned next to a suitable air cavity, this low-emissivity reflective surface can contribute to the thermal performance of the complete construction.
Novia states that VC4000 FR can improve both:
when correctly installed.
For the stated reflective thermal benefit, Novia specifies the reflective surface facing a:
25mm cavity
The adjacent air space is important because the reflective surface needs to face a suitable cavity to provide its intended low-emissivity thermal benefit.
Simply installing a reflective membrane without the appropriate cavity should not be assumed to provide the same improvement.
No. Novia VC4000 FR should not be considered a replacement for the primary insulation within a roof or wall.
Instead, its 98% reflective surface can contribute additional thermal performance when correctly incorporated into the complete construction.
The actual U-value and R-value of a roof or wall will depend on factors including:
Project-specific thermal calculations should therefore consider the complete construction.
Novia VC4000 FR achieves:
Class B-s1,d0 to EN 13501-1
This provides enhanced reaction-to-fire performance compared with standard Class E membrane products.
The classification relates to the membrane under the manufacturer’s specified test and installation conditions and should not be interpreted as the fire classification of the complete roof or wall assembly.
The complete construction must meet the applicable project and regulatory fire requirements.
Novia specifies VC4000 FR as suitable for high-rise applications.
Its combination of:
makes it suitable for consideration within appropriate high-rise insulated wall and roof specifications.
The suitability and compliance of the complete construction should always be assessed against current building regulations and project-specific fire requirements.
Novia VC4000 FR is:
UKCA approved to BS EN 13984
BS EN 13984 covers flexible sheets used as plastic and rubber vapour control layers within buildings.
This supports the use of VC4000 FR as an Air and Vapour Control Layer within appropriate construction applications.
Novia VC4000 FR is suitable for insulated wall applications where high moisture vapour resistance is required.
Within an appropriately designed wall, it can provide:
Correct positioning, continuity and sealing are essential to the performance of an AVCL.
VC4000 FR is also suitable for insulated roof applications requiring a high-performance Air and Vapour Control Layer.
The membrane should be positioned according to the roof design and installed continuously, with joints and penetrations appropriately sealed.
An AVCL performs most effectively when it forms a continuous air and vapour control layer.
Particular attention should therefore be given to:
Suitable Novia sealing products should be used according to the manufacturer’s installation specification.
Novia VC4000 FR requires appropriate sealing of membrane laps and junctions to maintain the intended air and vapour control performance.
For VC4000 FR installations, the specified 96mm Novia Aluminium Foil Tape should be used for the final lap seal.
The wider 96mm foil tape provides a larger sealing area and is specifically identified by Novia for use with VC4000 FR.
Novia Metallised BOPP Tape should not be substituted for the specified final lap seal on VC4000 FR installations.
Other sealing and jointing products should be selected according to the relevant Novia installation guidance.
Where a coordinated fire-resistant membrane specification is required, Novia recommends combining:
Novia VC4000 FR AVCL
with:
Novia FR Fire Resistant Breather Membrane
VC4000 FR provides the internal air and vapour control function, while Novia FR Breather provides a breathable external membrane for appropriate roof and wall applications.
This allows the two membranes to form part of a coordinated fire-rated construction specification.
The compliance and fire performance of the complete roof or wall assembly should still be assessed as a whole.
Novia VC4000 FR is:
The membrane has no printed text or imagery.
For the stated reflective thermal benefit, the reflective face should be positioned adjacent to the appropriate 25mm cavity in accordance with Novia’s installation guidance.
Novia VC4000 FR is designed as a premium high-performance AVCL for applications requiring more than basic vapour control.
Its specification combines:
A standard AVCL may be suitable where these additional characteristics are not required.
The correct membrane should be selected according to the vapour resistance, fire performance, thermal and regulatory requirements of the complete construction.
Each roll measures:
1.5m wide x 50m long
Providing:
75m² nominal coverage
Actual usable coverage will be lower after allowing for overlaps, cutting and installation wastage.
| Specification | Details |
|---|---|
| Product | Novia VC4000 FR Reflective |
| Product Type | Air & Vapour Control Layer (AVCL) |
| Roll Width | 1.5m |
| Roll Length | 50m |
| Nominal Coverage | 75m² |
| Reflectivity | 98% |
| Reflective Thermal Cavity | 25mm |
| Moisture Vapour Permeability | Very Low |
| Moisture Vapour Resistance | High |
| Air Leakage Control | Yes |
| Vapour Control | Yes |
| Reaction to Fire | Class B-s1,d0 to EN 13501-1 |
| Standard | BS EN 13984 |
| UKCA Approved | Yes |
| Insulated Walls | Suitable |
| Insulated Roofs | Suitable |
| High-Rise Applications | Suitable as Specified by Novia |
| BS 5250 | Helps Towards Requirements |
| Face | Reflective |
| Reverse | White |
| None | |
| Specified Final Lap Tape | Novia 96mm Aluminium Foil Tape |
Novia VC4000 FR is a fire-resistant reflective Air and Vapour Control Layer designed for insulated roof and wall applications requiring high moisture vapour resistance.
Each roll measures:
1.5m wide x 50m long
Each roll provides:
75m² nominal coverage
Actual usable coverage will be lower after allowing for overlaps, cutting and installation wastage.
AVCL stands for Air and Vapour Control Layer.
It is designed to control both uncontrolled air leakage and the movement of moisture vapour through an insulated building element.
Novia VC4000 FR achieves Class B-s1,d0 to EN 13501-1 under the manufacturer’s specified conditions.
Novia specifies VC4000 FR as suitable for high-rise applications.
The complete construction must still comply with the applicable building regulations and project-specific fire requirements.
Yes. The membrane has a 98% reflective surface.
Novia states that the reflective surface can improve both U-values and R-values when correctly installed.
For the stated benefit, the reflective face should be positioned adjacent to a suitable 25mm cavity.
No. VC4000 FR is an AVCL rather than primary insulation.
Its reflective surface can contribute to the thermal performance of the complete construction when correctly installed.
VC4000 FR is designed to provide very low moisture vapour permeability and high moisture vapour resistance.
It is a vapour control layer, rather than a vapour-open breather membrane.
The membrane’s high moisture vapour resistance helps minimise the risk of interstitial condensation by controlling the movement of water vapour into the building fabric.
The complete roof or wall should still be assessed for condensation risk.
Yes. It is suitable for insulated wall applications requiring high moisture vapour resistance.
Yes. Novia specifies VC4000 FR for insulated roof applications where high moisture vapour resistance is required.
Novia VC4000 FR is UKCA approved to BS EN 13984.
Yes. Novia states that VC4000 FR helps towards BS 5250 requirements.
The complete construction and condensation control strategy should still be considered.
Where the reflective thermal benefit is required, the reflective face should face the appropriate 25mm cavity in accordance with Novia’s installation guidance.
The 96mm Novia Aluminium Foil Tape is specifically identified for use as the final lap seal with VC4000 FR.
Novia Metallised BOPP Tape should not be used as a substitute for the specified final lap seal on VC4000 FR.
Novia recommends its FR Fire Resistant Breather Membrane where a coordinated fire-rated membrane specification is required.
VC4000 FR provides the internal air and vapour control layer, while FR Breather provides the external breathable membrane within the appropriate construction.
Each roll provides 75m² nominal coverage.
As a simple guide:
Additional material should be allowed for overlaps, cutting and installation wastage.
Novia VC4000 FR Reflective is a premium fire-resistant AVCL designed for demanding insulated roof, wall and high-rise applications requiring high moisture vapour resistance.
It combines very low moisture vapour permeability with air leakage control, Class B-s1,d0 reaction-to-fire performance and a 98% reflective surface.
When correctly installed with the reflective face adjacent to a 25mm cavity, the membrane can contribute to improved U-values and R-values, helping enhance the thermal performance of the complete construction.
UKCA approved to BS EN 13984 and supplied as a 1.5m x 50m roll providing 75m² nominal coverage, Novia VC4000 FR provides a high-performance solution for projects requiring fire resistance, air control, vapour control and reflective thermal performance.
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Download Datasheet |
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UKCA DOP |
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