Membranes

Find the perfect membrane for your project. We stock airtight and windtight breather membranes, vapour control layers, and specialist membranes for pitched roofs, flat roofs, and more. Top brands like Pro Clima and Protect available. Shop online with Insulation Merchant!

Protect TF200 Thermo Insulating Timber Frame Breather Membrane | Insulation Merchant

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Airtight & Windtight Membranes

Airtight & Windtight Membranes

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Breather Membranes for use externally

Breather Membranes for use externally

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Vapour Control Layer (VCL) for use internally

Vapour Control Layer (VCL) for use internally

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Roofing Underlay Membranes

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Protect TF200 Thermo Insulating Timber Frame Breather Membrane | Insulation Merchant

Timber Frame Membranes

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DPM (Damp Proof Membrane) Polythene Membranes

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  • Protect TF200 Thermo Insulating Timber Frame Breather Membrane | Insulation Merchant Protect TF200 Thermo Insulating Timber Frame Breather Membrane | Insulation Merchant
    Winter Deals
    Free Shipping
    TF200 by Protect Membranes

    Protect TF200 Thermo Insulating Timber Frame Breather Membrane (1.5, 2.7 & 3m)

    From £192.90 inc. VAT
    £3.85 per m²
    From £160.75 ex. VAT
    £3.22 per m²
    From £192.90 inc. VAT
    £3.85 per m²
    Save £-192.90
    From £160.75 ex. VAT
    £3.22 per m²
    £0.00 Save £-160.75
  • 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

    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%
    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 Solitex Plus - Vapour Permeable Membrane (1.5m x 50m / 75m²) Pro Clima Solitex Plus - Vapour Permeable Membrane (1.5m x 50m / 75m²)
    Sale 10%
    SOLITEX PLUS by Pro Clima

    Pro Clima Solitex Plus - Vapour Permeable Membrane (1.5m x 50m / 75m²)

    £265.20 inc. VAT
    £3.53 per m²
    £221.00 ex. VAT
    £2.95 per m²
    £265.20 inc. VAT
    £3.53 per m²
    £295.80 Save £30.60
    £221.00 ex. VAT
    £2.95 per m²
    £246.50 Save £25.50
  • 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
    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
    Winter Deals
    Free Shipping
    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 Solitex Plus (Small Handy Roll) - Vapour Permeable Membrane (1.5m x 15m / 22.5m²) Pro Clima Solitex Plus (Small Handy Roll) - Vapour Permeable Membrane (1.5m x 15m / 22.5m²)
    Sale 10%
    SOLITEX PLUS by Pro Clima

    Pro Clima Solitex Plus (Small Handy Roll) - Vapour Permeable Membrane (1.5m x 15m / 22.5m²)

    £97.20 inc. VAT
    £4.32 per m²
    £81.00 ex. VAT
    £3.60 per m²
    £97.20 inc. VAT
    £4.32 per m²
    £108.48 Save £11.28
    £81.00 ex. VAT
    £3.60 per m²
    £90.40 Save £9.40
  • Pro Clima DA - Membrane (1.5m x 50m / 75m²) Pro Clima DA - Membrane (1.5m x 50m / 75m²)
    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
  • Pro Clima Solitex Fronta WA - Wall Lining Membrane (1.5m x 50m) Pro Clima Solitex Fronta WA - Wall Lining Membrane (1.5m x 50m)
    SOLITEX FRONTA WA by Pro Clima

    Pro Clima Solitex Fronta WA - Wall Lining Membrane (1.5m x 50m)

    £169.90 inc. VAT
    £141.58 ex. VAT
    £169.90 inc. VAT
    Save £-169.90
    £141.58 ex. VAT
    £0.00 Save £-141.58
  • COROTOP Light - Breathable Membrane - 1m x 50m (50m²) | Insulation Merchant COROTOP Light - Breathable Membrane - 1m x 50m (50m²) | Insulation Merchant
    LIGHT by Corotop - Membranes

    COROTOP Light - Breathable Membrane - 1m x 50m (50m²)

    £36.90 inc. VAT
    £0.73 per m²
    £30.75 ex. VAT
    £0.62 per m²
    £36.90 inc. VAT
    £0.73 per m²
    Save £-36.90
    £30.75 ex. VAT
    £0.62 per m²
    £0.00 Save £-30.75
  • BAUMIT StarTex Reinforcing Mesh - 50m x 1m | Insulation Merchant
    STARTEX by Baumit

    BAUMIT StarTex 160 Reinforcing Mesh - 50m x 1m

    £84.90 inc. VAT
    £1.88 per m²
    £70.75 ex. VAT
    £1.57 per m²
    £84.90 inc. VAT
    £1.88 per m²
    £0.00 Save £-84.90
    £70.75 ex. VAT
    £1.57 per m²
    £0.00 Save £-70.75
  • 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)
    Winter Deals
    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
  • STEICOmulti UDB Membrane - 50m x 1.5m | Insulation Merchant
    Sale 20%
    Winter Deals
    MULTI UDB by Steico

    STEICOmulti UDB Membrane - 50m x 1.5m

    £203.05 inc. VAT
    £2.70 per m²
    £169.21 ex. VAT
    £2.26 per m²
    £203.05 inc. VAT
    £2.70 per m²
    £254.00 Save £50.95
    £169.21 ex. VAT
    £2.26 per m²
    £211.67 Save £42.46
  • SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²) SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²)
    Winter Deals
    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
  • SIGA Majcoat® 200 SOB Diffusion Open Roof Breather Membrane - 1.5m x 50m SIGA Majcoat® 200 SOB Diffusion Open Roof Breather Membrane - 1.5m x 50m
    Winter Deals
    MAJCOAT® 200 by SIGA

    SIGA Majcoat® 200 SOB Diffusion Open Roof Breather Membrane - 1.5m x 50m

    £317.65 inc. VAT
    £4.23 per m²
    £264.71 ex. VAT
    £3.53 per m²
    £317.65 inc. VAT
    £4.23 per m²
    Save £-317.65
    £264.71 ex. VAT
    £3.53 per m²
    £0.00 Save £-264.71
  • 50m x 1.5m Thermafleece Breather Membrane (75m²) | Insulation Merchant 50m x 1.5m Thermafleece Breather Membrane (75m²) | Insulation Merchant
    Sale 59%
    Winter Deals
    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
  • STEICOmulti Membra 5 Vapour Control Layer - 50m x 1.5m | Insulation Merchant
    Sale 20%
    Winter Deals
    MULTI MEMBRA 5 by Steico

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

    £153.79 inc. VAT
    £2.05 per m²
    £128.16 ex. VAT
    £1.71 per m²
    £153.79 inc. VAT
    £2.05 per m²
    £192.38 Save £38.59
    £128.16 ex. VAT
    £1.71 per m²
    £160.32 Save £32.16
  • Pro Clima Solitex Fronta Quattro - Open Facade Membrane (1.5m x 50m) Pro Clima Solitex Fronta Quattro - Open Facade Membrane (1.5m x 50m)
    Sale
    SOLITEX by Pro Clima

    Pro Clima Solitex Fronta Quattro - Open Facade Membrane (1.5m x 50m)

    £365.60 inc. VAT
    £4.87 per m²
    £304.67 ex. VAT
    £4.06 per m²
    £365.60 inc. VAT
    £4.87 per m²
    £368.16 Save £2.56
    £304.67 ex. VAT
    £4.06 per m²
    £306.80 Save £2.13
  • COROTOP Strong - Breathable Roof Membrane - 1.5m x 50m (75m²) | Insulation Merchant COROTOP Strong - Breathable Roof Membrane - 1.5m x 50m (75m²) | Insulation Merchant
    STRONG by Corotop - Membranes

    COROTOP Strong - Breathable Roof Membrane - 1.5m x 50m (75m²)

    £89.90 inc. VAT
    £1.19 per m²
    £74.92 ex. VAT
    £1.00 per m²
    £89.90 inc. VAT
    £1.19 per m²
    Save £-89.90
    £74.92 ex. VAT
    £1.00 per m²
    £0.00 Save £-74.92
  • DuPont™ AirGuard® Tape - 25m x 60mm | Insulation Merchant
    AIRGUARD® by DuPont - Performance Building Solutions

    DuPont™ AirGuard® Tape - 25m x 60mm

    £23.35 inc. VAT
    £0.93 per LM (linear metre)
    £19.46 ex. VAT
    £0.78 per LM (linear metre)
    £23.35 inc. VAT
    £0.93 per LM (linear metre)
    Save £-23.35
    £19.46 ex. VAT
    £0.78 per LM (linear metre)
    £0.00 Save £-19.46