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%
    INTELLO PLUS by Pro Clima

    PC/IP50

    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 you save £30.96
    £223.50 ex. VAT
    £2.98 per m²
    £249.30 you save £25.80
  • Pro Clima | Intello Plus | Insulation Merchant Pro Clima | Intello Plus | Teson Vana | Insulation Merchant
    Sale 10%
    INTELLO PLUS by Pro Clima

    PC/IP20

    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 you save £12.94
    £92.92 ex. VAT
    £3.10 per m²
    £103.70 you save £10.78
  • Pro Clima DA (Small Handy Roll) - Membrane (1.5m x 20m / 30m²) Pro Clima DA (Small Handy Roll) - Membrane (1.5m x 20m / 30m²)
    Sale 1%
    DA by Pro Clima

    PC/DA20

    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 you save £1.10
    £74.08 ex. VAT
    £2.47 per m²
    £75.00 you save £0.92
  • Protect VC Foil Ultra Reflective Vapour Control Layer | Insulation Merchant Protect VC Foil Ultra Reflective Vapour Control Layer | Insulation Merchant
    Autumn Offers
    VC FOIL by Protect Membranes

    PT/VCFOIL-1.5

    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
    you save £-117.85
    £98.21 ex. VAT
    £1.31 per m²
    £0.00 you save £-98.21
  • Pro Clima DA - Membrane (1.5m x 50m / 75m²) Pro Clima DA - Membrane (1.5m x 50m / 75m²)
    DA by Pro Clima

    PC/DA

    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
    you save £-201.50
    £167.92 ex. VAT
    £2.24 per m²
    £0.00 you save £-167.92
  • Polythene Vapour Barrier (VCL) Green - 50m x 2.45m (122.5m²) Polythene Vapour Barrier (VCL) Green - 50m x 2.45m (122.5m²)
    POLYTHENE VCL by Insulation Merchant

    VAPOURBAR-125GRN

    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
    you save £-49.90
    £41.58 ex. VAT
    £0.34 per m²
    £0.00 you save £-41.58
  • SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²) SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²)
    MAJREX® by SIGA

    SIG/MR200

    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
    you save £-380.90
    £317.42 ex. VAT
    £4.23 per m²
    £0.00 you save £-317.42
  • SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²) SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²)
    MAJPELL® 5 VCL by SIGA

    SIG/MP5-15

    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
    you save £-233.70
    £194.75 ex. VAT
    £2.60 per m²
    £0.00 you save £-194.75
  • Felt Products Green Vapour Control Layer (Vapour Barrier) - 50m x 4m
    POLYTHENE VCL by Felt Products

    FP/VAPOURBAR-125

    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
    you save £-69.90
    £58.25 ex. VAT
    £0.29 per m²
    £0.00 you save £-58.25
  • 50m x 1.5m Thermafleece Breather Membrane (75m²) | Insulation Merchant 50m x 1.5m Thermafleece Breather Membrane (75m²) | Insulation Merchant
    THERMAFLEECE by Thermafleece

    TF/BM-50

    50m x 1.5m Thermafleece Breather Membrane (75m²)

    £185.00 inc. VAT
    £2.46 per m²
    £154.17 ex. VAT
    £2.06 per m²
    £185.00 inc. VAT
    £2.46 per m²
    you save £-185.00
    £154.17 ex. VAT
    £2.06 per m²
    £0.00 you save £-154.17
  • Protect BarriAir Vapour Control Layer with Integrated Tape - 1.5 x 50m Protect BarriAir Vapour Control Layer with Integrated Tape - 1.5 x 50m
    Autumn Offers
    BARRIAIR by Protect Membranes

    PT/BARRIAIR

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

    £102.97 inc. VAT
    £1.37 per m²
    £85.81 ex. VAT
    £1.14 per m²
    £102.97 inc. VAT
    £1.37 per m²
    you save £-102.97
    £85.81 ex. VAT
    £1.14 per m²
    £0.00 you save £-85.81
  • Pro Clima Aerosanna Visconn Spray/Paintable Airtight Sealant Membrane Pro Clima Aerosanna Visconn Spray/Paintable Airtight Sealant Membrane
    Sale 14%
    AEROSANA VISCONN by Pro Clima

    PC/AVB10L

    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 you save £1.72
    From £8.67 ex. VAT
    £10.10 you save £1.43
  • 16.7m x 1.5m Thermafleece Breather Membrane (25m²) | Insulation Merchant 16.7m x 1.5m Thermafleece Breather Membrane (25m²) | Insulation Merchant
    BREATHER MEMBRANE by Thermafleece

    TF/BM-25

    16.7m x 1.5m Thermafleece Breather Membrane (25m²)

    £74.90 inc. VAT
    £2.99 per m²
    £62.42 ex. VAT
    £2.50 per m²
    £74.90 inc. VAT
    £2.99 per m²
    you save £-74.90
    £62.42 ex. VAT
    £2.50 per m²
    £0.00 you save £-62.42
  • STEICOmulti Membra 5 Vapour Control Layer - 50m x 1.5m
    MULTI MEMBRA 5 by Steico

    STE/MM5-5015

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

    £176.30 inc. VAT
    £2.35 per m²
    £146.92 ex. VAT
    £1.96 per m²
    £176.30 inc. VAT
    £2.35 per m²
    you save £-176.30
    £146.92 ex. VAT
    £1.96 per m²
    £0.00 you save £-146.92
  • SOUDAL Soudatight LQ Paint On Airtight Membrane (Black) - 4.5kg
    Sale 5%
    Autumn Offers
    SOUDATIGHT by SOUDAL

    SOU/STLQB-45

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

    £38.56 inc. VAT
    £8.57 per kg
    £32.13 ex. VAT
    £7.14 per kg
    £38.56 inc. VAT
    £8.57 per kg
    £40.60 you save £2.04
    £32.13 ex. VAT
    £7.14 per kg
    £33.83 you save £1.70
  • SOUDAL Soudatight LQ Paint On Airtight Membrane (White) - 4.5kg
    Sale 5%
    Autumn Offers
    SOUDATIGHT by SOUDAL

    SOU/STLQW-45

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

    £38.56 inc. VAT
    £8.57 per kg
    £32.13 ex. VAT
    £7.14 per kg
    £38.56 inc. VAT
    £8.57 per kg
    £40.60 you save £2.04
    £32.13 ex. VAT
    £7.14 per kg
    £33.83 you save £1.70
  • Pro Clima DB+ - 1.35m x 50m Pro Clima DB+ - 1.35m x 50m
    Sale 11%
    DB+ by Pro Clima

    PC/DBPLUS

    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 you save £27.46
    £169.92 ex. VAT
    £2.52 per m²
    £192.80 you save £22.88
  • Pro Clima Dasatop - 1.5m x 50m (75m²) Pro Clima Dasatop - 1.5m x 50m (75m²)
    Sale 10%
    DASATOP by Pro Clima

    PC/DT

    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 you save £22.06
    £164.92 ex. VAT
    £2.20 per m²
    £183.30 you save £18.38
  • 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

    PC/IP5030

    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 you save £62.30
    £446.58 ex. VAT
    £2.98 per m²
    £498.50 you save £51.92
  • DuPont™ AirGuard® Reflective - Vapour Control Layer - 1.5m x 50m
    AIRGUARD® by DuPont - Performance Building Solutions

    TY/AGREF-5015

    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
    you save £-170.90
    £142.42 ex. VAT
    £1.90 per m²
    £0.00 you save £-142.42