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 Fentrim® 20 50/85 (Pre-folded Internal Corner Tape) - 25m | Insulation Merchant
    FENTRIM® by SIGA

    SIGA Fentrim® 20 50/85 (Pre-folded Internal Corner Tape) - 25m

    £87.40 per item
    £3.49 per LM (linear metre)
    inc. VAT
    £72.83 per item
    £2.91 per LM (linear metre)
    ex. VAT
    Save £-87.40
    £87.40 per item
    £3.49 per LM (linear metre)
    inc. VAT
    £0.00 Save £-72.83
    £72.83 per item
    £2.91 per LM (linear metre)
    ex. VAT
  • Pro Clima Contega Solido SL200 (Internal Single-sIded Corner Adhesive Tape) - 200mm x 30m | Insulation Merchant
    CONTEGA by Pro Clima

    Pro Clima Contega Solido SL200 (Internal Single-sIded Corner Adhesive Tape) - 200mm x 30m

    £130.67 per item
    inc. VAT
    £108.89 per item
    ex. VAT
    Save £-130.67
    £130.67 per item
    inc. VAT
    £0.00 Save £-108.89
    £108.89 per item
    ex. VAT
  • Pro Clima Orcon Multibond - Membrane Adhesive Strip Roll (Pack of 2) | Insulation Merchant
    ORCON by Pro Clima

    Pro Clima Orcon Multibond - Membrane Adhesive Strip Roll (Pack of 2)

    £62.77 per item
    £3.13 per LM (linear metre)
    inc. VAT
    £52.31 per item
    £2.62 per LM (linear metre)
    ex. VAT
    £0.00 Save £-62.77
    £62.77 per item
    £3.13 per LM (linear metre)
    inc. VAT
    £0.00 Save £-52.31
    £52.31 per item
    £2.62 per LM (linear metre)
    ex. VAT
  • 50mm SIGA Nail Sealing Tape - 30m | Insulation Merchant
    NAIL SEALING by SIGA

    50mm SIGA Nail Sealing Tape - 30m

    £51.80 per item
    £1.72 per LM (linear metre)
    inc. VAT
    £43.17 per item
    £1.44 per LM (linear metre)
    ex. VAT
    Save £-51.80
    £51.80 per item
    £1.72 per LM (linear metre)
    inc. VAT
    £0.00 Save £-43.17
    £43.17 per item
    £1.44 per LM (linear metre)
    ex. VAT
  • SIGA Meltell® 320 Black Hybrid Sealant (310ml cartridge) | Insulation Merchant
    MELTELL® by SIGA

    SIGA Meltell® 320 Black Hybrid Sealant (310ml cartridge)

    £8.95 per item
    £28.87 per litres
    inc. VAT
    £7.46 per item
    £24.06 per litres
    ex. VAT
    Save £-8.95
    £8.95 per item
    £28.87 per litres
    inc. VAT
    £0.00 Save £-7.46
    £7.46 per item
    £24.06 per litres
    ex. VAT
  • Pro Clima Roflex Solido 50 - Airtight Pipe Grommet (Pack of 6) | Insulation Merchant
    ROFLEX by Pro Clima

    Pro Clima Roflex Solido 50 - Airtight Pipe Grommet (Pack of 6)

    £28.25 per item
    £4.70 per ea
    inc. VAT
    £23.54 per item
    £3.92 per ea
    ex. VAT
    Save £-28.25
    £28.25 per item
    £4.70 per ea
    inc. VAT
    £0.00 Save £-23.54
    £23.54 per item
    £3.92 per ea
    ex. VAT
  • ROTHOBLAAS Smart Band Tearable Liner Airtightness Tape - 60mm x 25m
    SMART BAND by Rothoblaas

    ROTHOBLAAS Smart Band Tearable Liner Airtightness Tape - 60mm x 25m

    £22.05 per item
    £0.88 per LM (linear metre)
    inc. VAT
    £18.38 per item
    £0.74 per LM (linear metre)
    ex. VAT
    Save £-22.05
    £22.05 per item
    £0.88 per LM (linear metre)
    inc. VAT
    £0.00 Save £-18.38
    £18.38 per item
    £0.74 per LM (linear metre)
    ex. VAT
  • ROTHOBLAAS Clima Control 105 (Variable Vapour Control Membrane) (1.5m x 50m)
    Internal Use
    CLIMA CONTROL by Rothoblaas

    ROTHOBLAAS Clima Control 105 (Variable Vapour Control Membrane) (1.5m x 50m)

    £176.31 per item
    £2.35 per m²
    inc. VAT
    £146.93 per item
    £1.96 per m²
    ex. VAT
    Save £-176.31
    £176.31 per item
    £2.35 per m²
    inc. VAT
    £0.00 Save £-146.93
    £146.93 per item
    £1.96 per m²
    ex. VAT
  • SIGA Fentrim® IS 2 (Pre-folded External Corner Tape) | Insulation Merchant
    External Use
    FENTRIM® by SIGA

    SIGA Fentrim® IS 2 (Pre-folded External Corner Tape)

    From £56.80 per item
    £2.27 per LM (linear metre)
    inc. VAT
    From £47.33 per item
    £1.89 per LM (linear metre)
    ex. VAT
    Save £-56.80
    From £56.80 per item
    £2.27 per LM (linear metre)
    inc. VAT
    £0.00 Save £-47.33
    From £47.33 per item
    £1.89 per LM (linear metre)
    ex. VAT
  • SIGA Hard Rubber Roller for tape sealing | Insulation Merchant
    by SIGA

    SIGA Hard Rubber Roller for tape sealing

    £23.25 per item
    inc. VAT
    £19.38 per item
    ex. VAT
    Save £-23.25
    £23.25 per item
    inc. VAT
    £0.00 Save £-19.38
    £19.38 per item
    ex. VAT
  • ROTHOBLAAS Hermetic Foam (Acoustic Airtight Foam) 750ml
    HERMETIC FOAM by Rothoblaas

    ROTHOBLAAS Hermetic Foam (Acoustic Airtight Foam) 750ml

    From £1.00 per item
    inc. VAT
    From £0.83 per item
    ex. VAT
    Save £-1.00
    From £1.00 per item
    inc. VAT
    £0.00 Save £-0.83
    From £0.83 per item
    ex. VAT
  • SIGA Dockskin® 200 Mineral Surface Primer - 1kg bottle | Insulation Merchant
    DOCKSKIN® by SIGA

    SIGA Dockskin® 200 Mineral Surface Primer - 1kg bottle

    £41.45 per item
    inc. VAT
    £34.54 per item
    ex. VAT
    Save £-41.45
    £41.45 per item
    inc. VAT
    £0.00 Save £-34.54
    £34.54 per item
    ex. VAT
  • ROTHOBLAAS Nail Band (Butyl Nail Sealing Tape)
    NAIL BAND by Rothoblaas

    ROTHOBLAAS Nail Band (Butyl Nail Sealing Tape)

    £16.89 per item
    inc. VAT
    £14.08 per item
    ex. VAT
    Save £-16.89
    £16.89 per item
    inc. VAT
    £0.00 Save £-14.08
    £14.08 per item
    ex. VAT
  • SIGA Majvest® 200 SOB - Breather Membrane with Tape (Particularly for Closed Facade) | Insulation Merchant
    MAJVEST® by SIGA

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

    £218.65 per item
    £2.91 per m²
    inc. VAT
    £182.21 per item
    £2.43 per m²
    ex. VAT
    Save £-218.65
    £218.65 per item
    £2.91 per m²
    inc. VAT
    £0.00 Save £-182.21
    £182.21 per item
    £2.43 per m²
    ex. VAT
  • Pro Clima Solitex Fronta Humida - Wall Lining Membrane (1.5m x 50m) | Insulation Merchant
    SOLITEX by Pro Clima

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

    £285.49 per item
    £3.80 per m²
    inc. VAT
    £237.91 per item
    £3.17 per m²
    ex. VAT
    Save £-285.49
    £285.49 per item
    £3.80 per m²
    inc. VAT
    £0.00 Save £-237.91
    £237.91 per item
    £3.17 per m²
    ex. VAT
  • SIGA Primur® Cartridge Bonding Adhesive (310ml) | Insulation Merchant
    PRIMUR® by SIGA

    SIGA Primur® Cartridge Bonding Adhesive (310ml)

    £12.75 per item
    £41.13 per litres
    inc. VAT
    £10.63 per item
    £34.27 per litres
    ex. VAT
    Save £-12.75
    £12.75 per item
    £41.13 per litres
    inc. VAT
    £0.00 Save £-10.63
    £10.63 per item
    £34.27 per litres
    ex. VAT
  • SIGA Majcoat® 150 Breather Membrane - 1.5m x 50m (75m²) | Insulation Merchant
    MAJCOAT® by SIGA

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

    £220.90 per item
    £2.94 per m²
    inc. VAT
    £184.08 per item
    £2.45 per m²
    ex. VAT
    Save £-220.90
    £220.90 per item
    £2.94 per m²
    inc. VAT
    £0.00 Save £-184.08
    £184.08 per item
    £2.45 per m²
    ex. VAT
  • Pro Clima Solitex Fronta WA - Wall Lining Membrane (3m x 50m) | Insulation Merchant
    SOLITEX by Pro Clima

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

    £383.40 per item
    inc. VAT
    £319.50 per item
    ex. VAT
    Save £-383.40
    £383.40 per item
    inc. VAT
    £0.00 Save £-319.50
    £319.50 per item
    ex. VAT
  • ROTHOBLAAS Clima Control 80 (Variable Vapour Control Membrane) (1.5m x 50m)
    Internal Use
    CLIMA CONTROL by Rothoblaas

    ROTHOBLAAS Clima Control 80 (Variable Vapour Control Membrane) (1.5m x 50m)

    £151.12 per item
    £2.01 per m²
    inc. VAT
    £125.93 per item
    £1.68 per m²
    ex. VAT
    Save £-151.12
    £151.12 per item
    £2.01 per m²
    inc. VAT
    £0.00 Save £-125.93
    £125.93 per item
    £1.68 per m²
    ex. VAT
  • Pro Clima Contega Solido EXO-D80 (External Double-sIded Corner Adhesive Tape) - 30m x 80mm | Insulation Merchant
    CONTEGA by Pro Clima

    Pro Clima Contega Solido EXO-D80 (External Double-sided Corner Adhesive Tape) - 30m x 80mm

    £72.68 per item
    £2.42 per LM (linear metre)
    inc. VAT
    £60.57 per item
    £2.02 per LM (linear metre)
    ex. VAT
    Save £-72.68
    £72.68 per item
    £2.42 per LM (linear metre)
    inc. VAT
    £0.00 Save £-60.57
    £60.57 per item
    £2.02 per LM (linear metre)
    ex. VAT