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
    Autumn Offers
    TF200 by Protect Membranes

    PT/TF200TH-1.5

    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
    you save £-192.90
    From £160.75 ex. VAT
    £3.22 per m²
    £0.00 you 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

    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 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

    PC/SP1

    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 you save £30.60
    £221.00 ex. VAT
    £2.95 per m²
    £246.50 you 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 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 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

    PC/SP2

    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 you save £11.28
    £81.00 ex. VAT
    £3.60 per m²
    £90.40 you 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

    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
  • 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

    PC/FWA15050

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

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

    FAK/CORLI

    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
    you save £-36.90
    £30.75 ex. VAT
    £0.62 per m²
    £0.00 you save £-30.75
  • 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)
    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
  • BAUMIT StarTex Reinforcing Mesh - 50m x 1m
    STARTEX by Baumit

    BAU/STARTEX-50x1

    BAUMIT StarTex 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 you save £-84.90
    £70.75 ex. VAT
    £1.57 per m²
    £0.00 you save £-70.75
  • 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
    MAJCOAT® 200 by SIGA

    SIG/MC200S

    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
    you save £-317.65
    £264.71 ex. VAT
    £3.53 per m²
    £0.00 you save £-264.71
  • STEICOmulti UDB Membrane - 50m x 1.5m
    MULTI UDB by Steico

    STE/UDB-5015

    STEICOmulti UDB Membrane - 50m x 1.5m

    £237.28 inc. VAT
    £3.16 per m²
    £197.73 ex. VAT
    £2.64 per m²
    £237.28 inc. VAT
    £3.16 per m²
    you save £-237.28
    £197.73 ex. VAT
    £2.64 per m²
    £0.00 you save £-197.73
  • 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
  • 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
  • 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 0%
    SOLITEX by Pro Clima

    PC/FQ

    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 you save £2.56
    £304.67 ex. VAT
    £4.06 per m²
    £306.80 you save £2.13
  • 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
  • COROTOP Strong - Breathable Roof Membrane - 1.5m x 50m (75m²) COROTOP Strong - Breathable Roof Membrane - 1.5m x 50m (75m²)
    STRONG by Corotop - Membranes

    FAK/CORSTR

    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
    you save £-89.90
    £74.92 ex. VAT
    £1.00 per m²
    £0.00 you save £-74.92