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 minimize 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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  • 50mm SIGA Nail Sealing Tape - 30m | Insulation Merchant 50mm SIGA Nail Sealing Tape - 30m | Insulation Merchant
    Spring Savings
    NAIL SEALING by SIGA

    50mm SIGA Nail Sealing Tape - 30m

    £51.80 inc. VAT
    £1.72 per LM (linear metre)
    £43.17 ex. VAT
    £1.44 per LM (linear metre)
    £51.80 inc. VAT
    £1.72 per LM (linear metre)
    Save £-51.80
    £43.17 ex. VAT
    £1.44 per LM (linear metre)
    £0.00 Save £-43.17
  • Pro Clima Tescon Profect 50 (Pre-folded Corner Tape) - 30m x 50mm (12/38mm Split) | Insulation Merchant Pro Clima Tescon Profect 50 (Pre-folded Corner Tape) - 30m x 50mm (12/38mm Split) | Insulation Merchant
    Sale
    TESCON by Pro Clima

    Pro Clima Tescon Profect 50 (Pre-folded Corner Tape) - 30m x 50mm (12/38mm Split)

    £52.90 inc. VAT
    £1.76 per LM (linear metre)
    £44.08 ex. VAT
    £1.47 per LM (linear metre)
    £52.90 inc. VAT
    £1.76 per LM (linear metre)
    £53.64 Save £0.74
    £44.08 ex. VAT
    £1.47 per LM (linear metre)
    £44.70 Save £0.62
  • SIGA Meltell® 320 Black Hybrid Sealant (310ml cartridge) | Insulation Merchant SIGA Meltell® 320 Black Hybrid Sealant (310ml cartridge) | Insulation Merchant
    Spring Savings
    MELTELL® by SIGA

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

    £8.95 inc. VAT
    £28.87 per litres
    £7.46 ex. VAT
    £24.06 per litres
    £8.95 inc. VAT
    £28.87 per litres
    Save £-8.95
    £7.46 ex. VAT
    £24.06 per litres
    £0.00 Save £-7.46
  • Pro Clima Contega Solido SL200 (Internal Single-sIded Corner Adhesive Tape) - 200mm x 30m | Insulation Merchant Pro Clima Contega Solido SL200 (Internal Single-sIded Corner Adhesive Tape) - 200mm x 30m | Insulation Merchant
    Sale
    CONTEGA SOLIDO SL by Pro Clima

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

    £119.50 inc. VAT
    £99.58 ex. VAT
    £119.50 inc. VAT
    £122.76 Save £3.26
    £99.58 ex. VAT
    £102.30 Save £2.72
  • 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
  • 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 Primur® Cartridge Bonding Adhesive (310ml) | Insulation Merchant SIGA Primur® Cartridge Bonding Adhesive (310ml) | Insulation Merchant
    Spring Savings
    PRIMUR® by SIGA

    SIGA Primur® Cartridge Bonding Adhesive (310ml)

    £12.75 inc. VAT
    £41.13 per litres
    £10.63 ex. VAT
    £34.27 per litres
    £12.75 inc. VAT
    £41.13 per litres
    Save £-12.75
    £10.63 ex. VAT
    £34.27 per litres
    £0.00 Save £-10.63
  • Pro Clima Roflex Solido 50 - Airtight Pipe Grommet (Pack of 6) | Insulation Merchant Pro Clima Roflex Solido 50 - Airtight Pipe Grommet (Pack of 6) | Insulation Merchant
    ROFLEX SOLIDO by Pro Clima

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

    £27.94 inc. VAT
    £4.65 per ea
    £23.28 ex. VAT
    £3.88 per ea
    £27.94 inc. VAT
    £4.65 per ea
    Save £-27.94
    £23.28 ex. VAT
    £3.88 per ea
    £0.00 Save £-23.28
  • Pro Clima Stoppa - 20mm (20 per pack) | Insulation Merchant
    Sale 7%
    STOPPA by Pro Clima

    Pro Clima Stoppa - 20mm (20 per pack)

    £19.20 inc. VAT
    £0.96 per ea
    £16.00 ex. VAT
    £0.80 per ea
    £19.20 inc. VAT
    £0.96 per ea
    £20.76 Save £1.56
    £16.00 ex. VAT
    £0.80 per ea
    £17.30 Save £1.30
  • Pro Clima Glumex - Adhesive Remover (400ml) | Insulation Merchant
    Sale 5%
    GLUMEX by Pro Clima

    Pro Clima Glumex - Adhesive Remover (400ml)

    £11.85 inc. VAT
    £9.88 ex. VAT
    £11.85 inc. VAT
    £12.48 Save £0.63
    £9.88 ex. VAT
    £10.40 Save £0.53
  • Pro Clima Orcon Multibond - Membrane Adhesive Strip Roll (Pack of 2) | Insulation Merchant Pro Clima Orcon Multibond - Membrane Adhesive Strip Roll (Pack of 2) | Insulation Merchant
    Sale 4%
    ORCON by Pro Clima

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

    £56.00 inc. VAT
    £2.80 per LM (linear metre)
    £46.67 ex. VAT
    £2.33 per LM (linear metre)
    £56.00 inc. VAT
    £2.80 per LM (linear metre)
    £58.92 Save £2.92
    £46.67 ex. VAT
    £2.33 per LM (linear metre)
    £49.10 Save £2.43
  • SIGA | Insulation Merchant
    Spring Savings
    External Use
    FENTRIM® 2 by SIGA

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

    From £69.35 inc. VAT
    £2.77 per LM (linear metre)
    From £57.79 ex. VAT
    £2.31 per LM (linear metre)
    From £69.35 inc. VAT
    £2.77 per LM (linear metre)
    Save £-69.35
    From £57.79 ex. VAT
    £2.31 per LM (linear metre)
    £0.00 Save £-57.79
  • 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
  • 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
  • Pro Clima Stoppa - 16mm (20 per pack) | Insulation Merchant
    Sale 5%
    STOPPA by Pro Clima

    Pro Clima Stoppa - 16mm (20 per pack)

    £18.50 inc. VAT
    £15.42 ex. VAT
    £18.50 inc. VAT
    £19.56 Save £1.06
    £15.42 ex. VAT
    £16.30 Save £0.88
  • 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
  • SIGA Wigluv® 150 External Adhesive Tape - (150mm x 25m) | Insulation Merchant SIGA Wigluv® 150 External Adhesive Tape - (150mm x 25m) | Insulation Merchant
    Spring Savings
    WIGLUV® 150 by SIGA

    SIGA Wigluv® 150 External Adhesive Tape - (150mm x 25m)

    £84.80 inc. VAT
    £3.39 per LM (linear metre)
    £70.67 ex. VAT
    £2.83 per LM (linear metre)
    £84.80 inc. VAT
    £3.39 per LM (linear metre)
    Save £-84.80
    £70.67 ex. VAT
    £2.83 per LM (linear metre)
    £0.00 Save £-70.67
  • SIGA Wigluv® black 20/40 Split External Adhesive Tape (60mm x 25m) | Insulation Merchant SIGA Wigluv® black 20/40 Split External Adhesive Tape (60mm x 25m) | Insulation Merchant
    Spring Savings
    WIGLUV® BLACK 20/40 by SIGA

    SIGA Wigluv® black 20/40 Split External Adhesive Tape (60mm x 25m)

    £60.45 inc. VAT
    £2.41 per LM (linear metre)
    £50.38 ex. VAT
    £2.02 per LM (linear metre)
    £60.45 inc. VAT
    £2.41 per LM (linear metre)
    Save £-60.45
    £50.38 ex. VAT
    £2.02 per LM (linear metre)
    £0.00 Save £-50.38
  • SIGA Farmer Waterproof High Performance Multi-purpose Tape - 60mm x 15m | Insulation Merchant SIGA Farmer Waterproof High Performance Multi-purpose Tape - 60mm x 15m | Insulation Merchant
    Spring Savings
    FARMER by SIGA

    SIGA Farmer Waterproof High Performance Multi-purpose Tape - 60mm x 15m

    £21.90 inc. VAT
    £1.46 per LM (linear metre)
    £18.25 ex. VAT
    £1.22 per LM (linear metre)
    £21.90 inc. VAT
    £1.46 per LM (linear metre)
    Save £-21.90
    £18.25 ex. VAT
    £1.22 per LM (linear metre)
    £0.00 Save £-18.25
  • 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