Airtight & Windtight Membranes

Airtightness and Widtightness are important aspects to consider when building or renovating. Air leakage into and out of a property can be detrimental to the thermal performance of insulation. Creating an airtight seal in the property with an airtight & windtight membrane can prevent cold air from entering and hot air from escaping. 

We also have a range of airtight tapes and accessories to go along with the airtightness membranes.

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Airtight & Windtight Membranes
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  • Pro Clima Constivap 2.3 Plus - 1.5m x 50m | Insulation Merchant Pro Clima Constivap 2.3 Plus - 1.5m x 50m | Insulation Merchant
    Sale 10%
    CONSTIVAP by Pro Clima

    Pro Clima Constivap 2.3 Plus - 1.5m x 50m

    £152.60 inc. VAT
    £127.17 ex. VAT
    £152.60 inc. VAT
    £170.28 Save £17.68
    £127.17 ex. VAT
    £141.90 Save £14.73
  • 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
  • Pro Clima Solitex Plus Connect - Vapour Permeable Membrane + Pre-applied Tape (1.5m x 50m 75m²) | Insulation Merchant Pro Clima Solitex Plus Connect - Vapour Permeable Membrane + Pre-applied Tape (1.5m x 50m 75m²) | Insulation Merchant
    Sale

    5.0

    SOLITEX PLUS by Pro Clima

    Pro Clima Solitex Plus Connect - Vapour Permeable Membrane + Pre-applied Tape (1.5m x 50m 75m²)

    £338.30 inc. VAT
    £4.51 per m²
    £281.92 ex. VAT
    £3.76 per m²
    £338.30 inc. VAT
    £4.51 per m²
    £344.16 Save £5.86
    £281.92 ex. VAT
    £3.76 per m²
    £286.80 Save £4.88
  • 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
  • Kingspan Nilvent Breather Membrane - 1.5m x 50m | Insulation Merchant Kingspan Nilvent Breather Membrane - 1.5m x 50m | Insulation Merchant
    by Kingspan

    Kingspan Nilvent Breather Membrane - 1.5m x 50m

    £146.90 inc. VAT
    £1.95 per m²
    £122.42 ex. VAT
    £1.63 per m²
    £146.90 inc. VAT
    £1.95 per m²
    Save £-146.90
    £122.42 ex. VAT
    £1.63 per m²
    £0.00 Save £-122.42
  • Pro Clima Solitex Fronta Humida - Wall Lining Membrane (1.5m x 50m) | Insulation Merchant Pro Clima Solitex Fronta Humida - Wall Lining Membrane (1.5m x 50m) | Insulation Merchant
    SOLITEX FRONTA HUMIDA by Pro Clima

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

    £268.90 inc. VAT
    £3.58 per m²
    £224.08 ex. VAT
    £2.99 per m²
    £268.90 inc. VAT
    £3.58 per m²
    Save £-268.90
    £224.08 ex. VAT
    £2.99 per m²
    £0.00 Save £-224.08
  • pro clima | Insulation Merchant
    Sale 83%
    AEROSANA VISCONN FIBRE by Pro Clima

    Pro Clima Aerosanna Visconn Fibre-reinforced Spray/Paintable Airtight Sealant Membrane

    From £14.05 inc. VAT
    From £11.71 ex. VAT
    From £14.05 inc. VAT
    £86.88 Save £72.83
    From £11.71 ex. VAT
    £72.40 Save £60.69
  • Pro Clima Solitex Fronta WA - Wall Lining Membrane (3m x 50m) | Insulation Merchant Pro Clima Solitex Fronta WA - Wall Lining Membrane (3m x 50m) | Insulation Merchant
    SOLITEX FRONTA WA by Pro Clima

    Pro Clima Solitex Fronta WA - Wall Lining Membrane (3m x 50m)

    £339.90 inc. VAT
    £283.25 ex. VAT
    £339.90 inc. VAT
    Save £-339.90
    £283.25 ex. VAT
    £0.00 Save £-283.25
  • SIGA Majcoat® 150 Breather Membrane - 1.5m x 50m (75m²) | Insulation Merchant SIGA Majcoat® 150 Breather Membrane - 1.5m x 50m (75m²) | Insulation Merchant
    Spring Savings
    MAJCOAT® 150 by SIGA

    SIGA Majcoat® 150 Breather Membrane - 1.5m x 50m (75m²)

    £220.90 inc. VAT
    £2.94 per m²
    £184.08 ex. VAT
    £2.45 per m²
    £220.90 inc. VAT
    £2.94 per m²
    Save £-220.90
    £184.08 ex. VAT
    £2.45 per m²
    £0.00 Save £-184.08
  • PROCTOR Wraptite® Self-adhesive Vapour Permeable Airtight Membrane - 1.5 x 50m | Insulation Merchant PROCTOR Wraptite® Self-adhesive Vapour Permeable Airtight Membrane - 1.5 x 50m | Insulation Merchant
    WRAPTITE® by A. Proctor Group

    PROCTOR Wraptite® Self-adhesive Vapour Permeable Airtight Membrane - 1.5 x 50m

    £944.90 inc. VAT
    £12.59 per m²
    £787.42 ex. VAT
    £10.50 per m²
    £944.90 inc. VAT
    £12.59 per m²
    Save £-944.90
    £787.42 ex. VAT
    £10.50 per m²
    £0.00 Save £-787.42
  • PAVATEX LDB 0.02 Permeable Membrane 50m x 1.5m | Insulation Merchant PAVATEX LDB 0.02 Permeable Membrane 50m x 1.5m | Insulation Merchant
    Sale 20%
    PAVATEX MEMBRANE by Pavatex

    PAVATEX LDB 0.02 Permeable Membrane 50m x 1.5m

    £168.90 inc. VAT
    £140.75 ex. VAT
    £168.90 inc. VAT
    £212.90 Save £44.00
    £140.75 ex. VAT
    £177.42 Save £36.67
  • Pro Clima Solitex Adhero 3000 - Self Adhesive Vapour Permeable Membrane (1.5m X 30m) | Insulation Merchant Pro Clima Solitex Adhero 3000 - Self Adhesive Vapour Permeable Membrane (1.5m X 30m) | Insulation Merchant
    SOLITEX by Pro Clima

    Pro Clima Solitex Adhero 3000 - Self Adhesive Vapour Permeable Membrane (1.5m X 30m)

    £414.48 inc. VAT
    £9.21 per m²
    £345.40 ex. VAT
    £7.68 per m²
    £414.48 inc. VAT
    £9.21 per m²
    Save £-414.48
    £345.40 ex. VAT
    £7.68 per m²
    £0.00 Save £-345.40
  • SIGA Wetguard® 200 SA - 390mm x 50m | Insulation Merchant SIGA Wetguard® 200 SA - 390mm x 50m | Insulation Merchant
    Spring Savings
    WETGUARD® by SIGA

    SIGA Wetguard® 200 SA - 390mm x 50m

    £202.70 inc. VAT
    £10.39 per m²
    £168.92 ex. VAT
    £8.66 per m²
    £202.70 inc. VAT
    £10.39 per m²
    Save £-202.70
    £168.92 ex. VAT
    £8.66 per m²
    £0.00 Save £-168.92
  • SIGA Majvest® 200 SOB - Breather Membrane with Tape (Particularly for Closed Facade) | Insulation Merchant SIGA Majvest® 200 SOB - Breather Membrane with Tape (Particularly for Closed Facade) | Insulation Merchant
    Spring Savings
    MAJVEST® 200 SOB by SIGA

    SIGA Majvest® 200 SOB - Breather Membrane with Tape (Particularly for Closed Facade)

    £218.65 inc. VAT
    £2.91 per m²
    £182.21 ex. VAT
    £2.43 per m²
    £218.65 inc. VAT
    £2.91 per m²
    Save £-218.65
    £182.21 ex. VAT
    £2.43 per m²
    £0.00 Save £-182.21
  • DuPont™ Tyvek® Supro - Breather Roof Membrane - 50m x 1.5m (75m²) | Insulation Merchant DuPont™ Tyvek® Supro - Breather Roof Membrane - 50m x 1.5m (75m²) | Insulation Merchant
    TYVEK® by DuPont - Performance Building Solutions

    DuPont™ Tyvek® Supro - Breather Roof Membrane - 50m x 1.5m (75m²)

    £211.90 inc. VAT
    £2.82 per m²
    £176.58 ex. VAT
    £2.35 per m²
    £211.90 inc. VAT
    £2.82 per m²
    Save £-211.90
    £176.58 ex. VAT
    £2.35 per m²
    £0.00 Save £-176.58
  • DuPont™ AirGuard® A2 FR AVCL - Fire Retardant Membrane - 1.2 x 50m | Insulation Merchant
    AIRGUARD® by DuPont - Performance Building Solutions

    DuPont™ AirGuard® A2 FR AVCL - Fire Retardant Membrane - 1.2 x 50m

    £ Looking for a price?

    Add to a quote for our best rate.

  • DuPont™ AirGuard® Control - Vapour Control Layer - 1.5 x 50m | Insulation Merchant
    AIRGUARD® by DuPont - Performance Building Solutions

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

    £176.90 inc. VAT
    £2.35 per m²
    £147.42 ex. VAT
    £1.97 per m²
    £176.90 inc. VAT
    £2.35 per m²
    Save £-176.90
    £147.42 ex. VAT
    £1.97 per m²
    £0.00 Save £-147.42
  • SIGA Wetguard® 200 SA - 1560mm x 50m | Insulation Merchant SIGA Wetguard® 200 SA - 1560mm x 50m | Insulation Merchant
    Spring Savings
    WETGUARD® by SIGA

    SIGA Wetguard® 200 SA - 1560mm x 50m

    £764.35 inc. VAT
    £9.79 per m²
    £636.96 ex. VAT
    £8.17 per m²
    £764.35 inc. VAT
    £9.79 per m²
    Save £-764.35
    £636.96 ex. VAT
    £8.17 per m²
    £0.00 Save £-636.96