Vapour Control Layer (VCL) for use internally

Internal

Vapour Control Layers (VCL) are designed to be fitted internally (warm-side) of a build-up and manage the movement of humid air from within a property room into the insulated area. When a property is heated and lived in, moisture is created through breathing, drying washing and general living. This can produce high amounts of moisture and when this comes into contact with a cold surface, it condenses and creates water. By installing a Vapour Control Membrane, we can reduce or eliminate any moisture from passing past the insulation and condensing on the cold side of the property. Another benefit of a VCL is they are air and wind-tight. They help to avoid 'wind wash' where cold air can make its way past elements of the building envelope and reduce the effective performance of insulation.

For the external side of a building, a Breather Membrane should be used.

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Vapour Control Layer (VCL) for use internally
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  • Pro Clima Intello Plus - Vapour Check Membrane | Insulation Merchant Pro Clima Intello Plus - Vapour Check Membrane | Tescon Vana | Insulation Merchant
    Sale 10%

    5.0

    INTELLO PLUS by Pro Clima

    1.5m Pro Clima Intello Plus - Vapour Check Membrane (50m)

    £268.20 inc. VAT
    £3.57 per m²
    £223.50 ex. VAT
    £2.98 per m²
    £268.20 inc. VAT
    £3.57 per m²
    £299.16 Save £30.96
    £223.50 ex. VAT
    £2.98 per m²
    £249.30 Save £25.80
  • Pro Clima | Intello Plus | Insulation Merchant Pro Clima | Intello Plus | Teson Vana | Insulation Merchant
    Sale 10%

    5.0

    INTELLO PLUS by Pro Clima

    1.5m Pro Clima Intello Plus (Small Handy Rolls) - Vapour Check Membrane (20m)

    £111.50 inc. VAT
    £3.71 per m²
    £92.92 ex. VAT
    £3.10 per m²
    £111.50 inc. VAT
    £3.71 per m²
    £124.44 Save £12.94
    £92.92 ex. VAT
    £3.10 per m²
    £103.70 Save £10.78
  • Pro Clima DA (Small Handy Roll) - Membrane (1.5m x 20m / 30m²) | Insulation Merchant Pro Clima DA (Small Handy Roll) - Membrane (1.5m x 20m / 30m²) | Insulation Merchant
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    5.0

    DA by Pro Clima

    Pro Clima DA (Small Handy Roll) - Membrane (1.5m x 20m / 30m²)

    £88.90 inc. VAT
    £2.96 per m²
    £74.08 ex. VAT
    £2.47 per m²
    £88.90 inc. VAT
    £2.96 per m²
    £90.00 Save £1.10
    £74.08 ex. VAT
    £2.47 per m²
    £75.00 Save £0.92
  • Protect VC Foil Ultra Reflective Vapour Control Layer | Insulation Merchant Protect VC Foil Ultra Reflective Vapour Control Layer | Insulation Merchant
    Spring Savings
    Free Shipping

    5.0

    VC FOIL by Protect Membranes

    1.5m Protect VC Foil Ultra Reflective Vapour Control Layer

    £117.85 inc. VAT
    £1.57 per m²
    £98.21 ex. VAT
    £1.31 per m²
    £117.85 inc. VAT
    £1.57 per m²
    Save £-117.85
    £98.21 ex. VAT
    £1.31 per m²
    £0.00 Save £-98.21
  • Pro Clima DA - Membrane (1.5m x 50m / 75m²) | Insulation Merchant Pro Clima DA - Membrane (1.5m x 50m / 75m²) | Insulation Merchant

    5.0

    DA by Pro Clima

    Pro Clima DA - Membrane (1.5m x 50m / 75m²)

    £201.50 inc. VAT
    £2.68 per m²
    £167.92 ex. VAT
    £2.24 per m²
    £201.50 inc. VAT
    £2.68 per m²
    Save £-201.50
    £167.92 ex. VAT
    £2.24 per m²
    £0.00 Save £-167.92
  • Polythene Vapour Barrier (VCL) Green - 50m x 2.45m (122.5m²) | Insulation Merchant Polythene Vapour Barrier (VCL) Green - 50m x 2.45m (122.5m²) | Insulation Merchant

    5.0

    POLYTHENE VCL by Insulation Merchant

    Polythene Vapour Barrier (VCL) Green - 50m x 2.45m (122.5m²)

    £49.90 inc. VAT
    £0.41 per m²
    £41.58 ex. VAT
    £0.34 per m²
    £49.90 inc. VAT
    £0.41 per m²
    Save £-49.90
    £41.58 ex. VAT
    £0.34 per m²
    £0.00 Save £-41.58
  • SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant
    Spring Savings
    MAJREX® by SIGA

    SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²)

    £380.90 inc. VAT
    £5.07 per m²
    £317.42 ex. VAT
    £4.23 per m²
    £380.90 inc. VAT
    £5.07 per m²
    Save £-380.90
    £317.42 ex. VAT
    £4.23 per m²
    £0.00 Save £-317.42
  • SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant
    Spring Savings
    MAJPELL® 5 VCL by SIGA

    SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²)

    £233.70 inc. VAT
    £3.11 per m²
    £194.75 ex. VAT
    £2.60 per m²
    £233.70 inc. VAT
    £3.11 per m²
    Save £-233.70
    £194.75 ex. VAT
    £2.60 per m²
    £0.00 Save £-194.75
  • Felt Products Green Vapour Control Layer (Vapour Barrier) - 50m x 4m | Insulation Merchant
    POLYTHENE VCL by Felt Products

    Felt Products Green Vapour Control Layer (Vapour Barrier) - 50m x 4m

    £69.90 inc. VAT
    £0.34 per m²
    £58.25 ex. VAT
    £0.29 per m²
    £69.90 inc. VAT
    £0.34 per m²
    Save £-69.90
    £58.25 ex. VAT
    £0.29 per m²
    £0.00 Save £-58.25
  • Protect BarriAir Vapour Control Layer with Integrated Tape - 1.5 x 50m | Insulation Merchant Protect BarriAir Vapour Control Layer with Integrated Tape - 1.5 x 50m | Insulation Merchant
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    Free Shipping
    BARRIAIR by Protect Membranes

    Protect BarriAir Vapour Control Layer with Integrated Tape - 1.5 x 50m

    £121.10 inc. VAT
    £1.61 per m²
    £100.92 ex. VAT
    £1.35 per m²
    £121.10 inc. VAT
    £1.61 per m²
    Save £-121.10
    £100.92 ex. VAT
    £1.35 per m²
    £0.00 Save £-100.92
  • 50m x 1.5m Thermafleece Breather Membrane (75m²) | Insulation Merchant 50m x 1.5m Thermafleece Breather Membrane (75m²) | Insulation Merchant
    Sale 59%
    Spring Savings
    BREATHER MEMBRANE by Thermafleece

    Thermafleece Breather Membrane

    From £74.90 inc. VAT
    £0.99 per m²
    From £62.42 ex. VAT
    £0.83 per m²
    From £74.90 inc. VAT
    £0.99 per m²
    £185.00 Save £110.10
    From £62.42 ex. VAT
    £0.83 per m²
    £154.17 Save £91.75
  • Pro Clima Aerosanna Visconn Spray/Paintable Airtight Sealant Membrane | Insulation Merchant Pro Clima Aerosanna Visconn Spray/Paintable Airtight Sealant Membrane | Insulation Merchant
    Sale 14%
    AEROSANA VISCONN by Pro Clima

    Pro Clima Aerosanna Visconn Spray/Paintable Airtight Sealant Membrane

    From £10.40 inc. VAT
    From £8.67 ex. VAT
    From £10.40 inc. VAT
    £12.12 Save £1.72
    From £8.67 ex. VAT
    £10.10 Save £1.43
  • STEICOmulti Membra 5 Vapour Control Layer - 50m x 1.5m | Insulation Merchant
    MULTI MEMBRA 5 by Steico

    STEICOmulti Membra 5 Vapour Control Layer - 50m x 1.5m

    £192.38 inc. VAT
    £2.56 per m²
    £160.32 ex. VAT
    £2.14 per m²
    £192.38 inc. VAT
    £2.56 per m²
    Save £-192.38
    £160.32 ex. VAT
    £2.14 per m²
    £0.00 Save £-160.32
  • SOUDAL Soudatight LQ Paint On Airtight Membrane (Black) - 4.5kg | Insulation Merchant
    Sale 10%
    Spring Savings
    SOUDATIGHT by SOUDAL

    SOUDAL Soudatight LQ Paint On Airtight Membrane (Black) - 4.5kg

    £36.54 inc. VAT
    £8.12 per kg
    £30.45 ex. VAT
    £6.77 per kg
    £36.54 inc. VAT
    £8.12 per kg
    £40.60 Save £4.06
    £30.45 ex. VAT
    £6.77 per kg
    £33.83 Save £3.38
  • Pro Clima Dasatop - 1.5m x 50m (75m²) | Insulation Merchant Pro Clima Dasatop - 1.5m x 50m (75m²) | Insulation Merchant
    Sale 10%
    DASATOP by Pro Clima

    Pro Clima Dasatop - 1.5m x 50m (75m²)

    £197.90 inc. VAT
    £2.63 per m²
    £164.92 ex. VAT
    £2.20 per m²
    £197.90 inc. VAT
    £2.63 per m²
    £219.96 Save £22.06
    £164.92 ex. VAT
    £2.20 per m²
    £183.30 Save £18.38
  • SOUDAL Soudatight LQ Paint On Airtight Membrane (White) - 4.5kg | Insulation Merchant
    Sale 10%
    Spring Savings
    SOUDATIGHT by SOUDAL

    SOUDAL Soudatight LQ Paint On Airtight Membrane (White) - 4.5kg

    £36.54 inc. VAT
    £8.12 per kg
    £30.45 ex. VAT
    £6.77 per kg
    £36.54 inc. VAT
    £8.12 per kg
    £40.60 Save £4.06
    £30.45 ex. VAT
    £6.77 per kg
    £33.83 Save £3.38
  • Pro Clima DB+ - 1.35m x 50m | Insulation Merchant Pro Clima DB+ - 1.35m x 50m | Insulation Merchant
    Sale 11%
    DB+ by Pro Clima

    Pro Clima DB+ - 1.35m x 50m

    £203.90 inc. VAT
    £3.02 per m²
    £169.92 ex. VAT
    £2.52 per m²
    £203.90 inc. VAT
    £3.02 per m²
    £231.36 Save £27.46
    £169.92 ex. VAT
    £2.52 per m²
    £192.80 Save £22.88
  • STEICOmulti Renova Membrane - 50m x 1.5m | Insulation Merchant
    MULTI RENOVA by Steico

    STEICO Multi Renova Membrane - 50m x 1.5m

    £273.54 inc. VAT
    £3.64 per m²
    £227.95 ex. VAT
    £3.04 per m²
    £273.54 inc. VAT
    £3.64 per m²
    Save £-273.54
    £227.95 ex. VAT
    £3.04 per m²
    £0.00 Save £-227.95
  • DuPont™ AirGuard® Reflective - Vapour Control Layer - 1.5m x 50m | Insulation Merchant
    AIRGUARD® by DuPont - Performance Building Solutions

    DuPont™ AirGuard® Reflective - Vapour Control Layer - 1.5m x 50m

    £170.90 inc. VAT
    £2.27 per m²
    £142.42 ex. VAT
    £1.90 per m²
    £170.90 inc. VAT
    £2.27 per m²
    Save £-170.90
    £142.42 ex. VAT
    £1.90 per m²
    £0.00 Save £-142.42
  • 3m Pro Clima Intello Plus - Vapour Check Membrane (50m) | Insulation Merchant 3m Pro Clima Intello Plus - Vapour Check Membrane (50m) | Insulation Merchant
    Sale 10%
    INTELLO PLUS by Pro Clima

    3m Pro Clima Intello Plus - Vapour Check Membrane (50m)

    £535.90 inc. VAT
    £3.57 per m²
    £446.58 ex. VAT
    £2.98 per m²
    £535.90 inc. VAT
    £3.57 per m²
    £598.20 Save £62.30
    £446.58 ex. VAT
    £2.98 per m²
    £498.50 Save £51.92