Airtight & Windtight Systems

Airtightness and Widtightness are essential 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 helps minimise heat loss or gain and eliminates drafts, ensuring a consistent indoor temperature. It also helps eliminate the entry of pollutants, allergens and moisture, resulting in a healthier indoor environment. 

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Airtight & Windtight Systems

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Airtight & Windtight Membranes

Airtight & Windtight Membranes

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Airtight & Windtight Tapes and Sealants

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Liquid Airtight Membranes

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Airtight Grommets

Airtight Grommets

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Pro Clima Contega Fiden Exo (Expansion Joint Tape) - Joint 5-10mm (Roll 20mm x 5.6m) | Insulation Merchant

Expanding Tapes

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Pro Clima

Pro Clima

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Rothoblaas

Rothoblaas

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SIGA

SIGA

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Insulating Ground Floors

To undertake a ground floor thermal insulation upgrade it is first important to establish if it is possible or not. In domestic buildings, broadly speaking, there are two styles of floor type - solid ground floor and suspended floor, each with its pros and cons.

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  • SIGA Majcoat® 150 SOB Breather Membrane - 1.5m x 50m | Insulation Merchant
    MAJCOAT® by SIGA

    SIGA Majcoat® 150 SOB Breather Membrane - 1.5m x 50m

    £296.90 per item
    £3.95 per m²
    inc. VAT
    £247.42 per item
    £3.30 per m²
    ex. VAT
    Save £-296.90
    £296.90 per item
    £3.95 per m²
    inc. VAT
    £0.00 Save £-247.42
    £247.42 per item
    £3.30 per m²
    ex. VAT
  • SIGA Fentrim® 2 50/85 (Pre-folded External Corner Tape) - 25m | Insulation Merchant
    FENTRIM® by SIGA

    SIGA Fentrim® 2 50/85 (Pre-folded External Corner Tape) - 25m

    £88.80 per item
    £3.55 per LM (linear metre)
    inc. VAT
    £74.00 per item
    £2.96 per LM (linear metre)
    ex. VAT
    Save £-88.80
    £88.80 per item
    £3.55 per LM (linear metre)
    inc. VAT
    £0.00 Save £-74.00
    £74.00 per item
    £2.96 per LM (linear metre)
    ex. VAT
  • Pro Clima Stoppa - 16mm (20 per pack) | Insulation Merchant
    STOPPA by Pro Clima

    Pro Clima Stoppa - 16mm (20 per pack)

    £18.83 per item
    inc. VAT
    £15.69 per item
    ex. VAT
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    £18.83 per item
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    £0.00 Save £-15.69
    £15.69 per item
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  • Man Installling Extoseal Finoc Tape | Insulation Merchant
    EXTOSEAL by Pro Clima

    Pro Clima Extoseal Finoc

    From £57.28 per item
    £2.86 per LM (linear metre)
    inc. VAT
    From £47.73 per item
    £2.39 per LM (linear metre)
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    From £57.28 per item
    £2.86 per LM (linear metre)
    inc. VAT
    £0.00 Save £-47.73
    From £47.73 per item
    £2.39 per LM (linear metre)
    ex. VAT
  • ROTHOBLAAS Barrier NET SD40 (Vapour Control Membrane) (1.5m x 50m)
    Internal Use
    BARRIER by Rothoblaas

    ROTHOBLAAS Barrier NET SD40 (Vapour Control Membrane) (1.5m x 50m)

    £60.33 per item
    £0.80 per m²
    inc. VAT
    £50.28 per item
    £0.67 per m²
    ex. VAT
    Save £-60.33
    £60.33 per item
    £0.80 per m²
    inc. VAT
    £0.00 Save £-50.28
    £50.28 per item
    £0.67 per m²
    ex. VAT
  • SIGA Dockskin® 100 Fibrous Surface Primer - 1kg bottle | Insulation Merchant-1kg
    DOCKSKIN® by SIGA

    SIGA Dockskin® 100 Fibrous Surface Primer - 1kg bottle

    £30.15 per item
    inc. VAT
    £25.13 per item
    ex. VAT
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    £30.15 per item
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    £0.00 Save £-25.13
    £25.13 per item
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  • Pro Clima Roflex 300 - Airtight Pipe Grommet (Pack of 2) | Insulation Merchant
    ROFLEX by Pro Clima

    Pro Clima Roflex 300 - Airtight Pipe Grommet (Pack of 2)

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  • Pro Clima Tescon Rapic (Hand Tearable Airtight Tape)
    TESCON by Pro Clima

    Pro Clima Tescon Rapic (Hand Tearable Airtight Tape)

    £33.02 per item
    £1.10 per LM (linear metre)
    inc. VAT
    £27.52 per item
    £0.92 per LM (linear metre)
    ex. VAT
    Save £-33.02
    £33.02 per item
    £1.10 per LM (linear metre)
    inc. VAT
    £0.00 Save £-27.52
    £27.52 per item
    £0.92 per LM (linear metre)
    ex. VAT
  • ROTHOBLAAS HBS Countersunk Woodscrew (100 p/bx)
    HBS by Rothoblaas

    ROTHOBLAAS HBS Countersunk Woodscrew (100 p/bx)

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  • ROTHOBLAAS Front Band UV 210 - UV Airtightness Tape
    FRONT BAND UV by Rothoblaas

    ROTHOBLAAS Front Band UV 210 - UV Airtightness Tape

    £31.33 per item
    £1.56 per LM (linear metre)
    inc. VAT
    £26.11 per item
    £1.31 per LM (linear metre)
    ex. VAT
    Save £-31.33
    £31.33 per item
    £1.56 per LM (linear metre)
    inc. VAT
    £0.00 Save £-26.11
    £26.11 per item
    £1.31 per LM (linear metre)
    ex. VAT
  • ROTHOBLAAS Vapor NET 110 (Reinforced Vapour Control Membrane) (1.5m x 50m)
    VAPOR NET 110 by Rothoblaas

    ROTHOBLAAS Vapor NET 110 (Reinforced Vapour Control Membrane) (1.5m x 50m)

    £91.53 per item
    £1.22 per m²
    inc. VAT
    £76.28 per item
    £1.02 per m²
    ex. VAT
    Save £-91.53
    £91.53 per item
    £1.22 per m²
    inc. VAT
    £0.00 Save £-76.28
    £76.28 per item
    £1.02 per m²
    ex. VAT
  • ROTHOBLAAS Lama (Insulation Knife)
    LAMA by Rothoblaas

    ROTHOBLAAS Lama (Insulation Knife)

    £34.75 per item
    inc. VAT
    £28.96 per item
    ex. VAT
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    £34.75 per item
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    £0.00 Save £-28.96
    £28.96 per item
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  • ROTHOBLAAS Membrane Glue
    MEMBRANE GLUE by Rothoblaas

    ROTHOBLAAS Membrane Glue

    From £1.00 per item
    inc. VAT
    From £0.83 per item
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    From £1.00 per item
    inc. VAT
    £0.00 Save £-0.83
    From £0.83 per item
    ex. VAT
  • ROTHOBLAAS Alu Butyl Band Tape
    ALU BUTYL BAND by Rothoblaas

    ROTHOBLAAS Alu Butyl Band Tape

    From £21.50 per item
    £2.15 per LM (linear metre)
    inc. VAT
    From £17.92 per item
    £1.79 per LM (linear metre)
    ex. VAT
    Save £-21.50
    From £21.50 per item
    £2.15 per LM (linear metre)
    inc. VAT
    £0.00 Save £-17.92
    From £17.92 per item
    £1.79 per LM (linear metre)
    ex. VAT
  • ROTHOBLAAS Plaster Band IN (Indoor Plasterable Adhesive Tape)
    Internal Use
    PLASTER BAND by Rothoblaas

    ROTHOBLAAS Plaster Band IN (Indoor Plasterable Adhesive Tape)

    From £1.00 per item
    £0.04 per LM (linear metre)
    inc. VAT
    From £0.83 per item
    £0.03 per LM (linear metre)
    ex. VAT
    Save £-1.00
    From £1.00 per item
    £0.04 per LM (linear metre)
    inc. VAT
    £0.00 Save £-0.83
    From £0.83 per item
    £0.03 per LM (linear metre)
    ex. VAT
  • PRO CLIMA INSTAABOX Installation box - 320mm x 190mm (Pack of 10)
    INSTAABOX by Pro Clima

    PRO CLIMA INSTAABOX Installation box - 320mm x 190mm (Pack of 10)

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  • Siga Knife & Ruler Set | Insulation Merchant
    by SIGA

    Siga Knife & Ruler Set

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  • SIGA Majvest® 200 - Breather Membrane (Particularly for Closed Facade) | Insulation Merchant
    MAJVEST® by SIGA

    SIGA Majvest® 200 - Breather Membrane (Particularly for Closed Facade) 3m Wide Roll

    £499.90 per item
    £6.66 per m²
    inc. VAT
    £416.58 per item
    £5.55 per m²
    ex. VAT
    Save £-499.90
    £499.90 per item
    £6.66 per m²
    inc. VAT
    £0.00 Save £-416.58
    £416.58 per item
    £5.55 per m²
    ex. VAT
  • ROTHOBLAAS POP Safety Helmet - Grey
    Sale 32%
    Top Deals
    HELMET by Rothoblaas

    ROTHOBLAAS POP Safety Helmet - Grey

    £10.00 per item
    inc. VAT
    £8.33 per item
    ex. VAT
    £14.90 Save £4.90
    £10.00 per item
    inc. VAT
    £12.42 Save £4.08
    £8.33 per item
    ex. VAT
  • ROTHOBLAAS Traspir 110 - 1.5m x 50m (75m²)
    External Use
    TRASPIR by Rothoblaas

    ROTHOBLAAS Traspir 110 - 1.5m x 50m (75m²)

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