Collection: 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. 

Shop our range of airtight membranes, tapes, grommets, and sealants.

Airtight and windtight systems | Insulation Merchant

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Showing 122 of 122 products

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Showing 122 of 122 products
  • Pro Clima Aerosanna Visconn Fibre-reinforced Spray/Paintable Airtight Sealant Membrane
    AEROSANA VISCONN FIBRE by Pro Clima

    Translation missing: en.products.product.sku:PC/AVF5B

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

    Regular price
    From €14,95 EUR ex. GB VAT
    Sale price
    From €14,95 EUR ex. GB VAT
    Regular price
    you save €-14,95
    Regular price
    €0,00 you save €-12,46
  • SIGA Primur® Cartridge Bonding Adhesive (310ml)
    PRIMUR® by SIGA

    Translation missing: en.products.product.sku:SIG/PC

    SIGA Primur® Cartridge Bonding Adhesive (310ml)

    Regular price
    €13,95 EUR ex. GB VAT
    Unit Price
    €45,00 per litres
    Unit Price
    €37,50 per litres
    Sale price
    €13,95 EUR ex. GB VAT
    Unit Price
    €45,00 per litres
    Regular price
    you save €-13,95
    Unit Price
    €37,50 per litres
    Regular price
    €0,00 you save €-11,63
  • SIGA Majcoat® 150 Breather Membrane - 1.5m x 50m (75m²)
    MAJCOAT® 150 by SIGA

    Translation missing: en.products.product.sku:SIG/MC150-15

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

    Regular price
    €225,95 EUR ex. GB VAT
    Unit Price
    €3,01 per m²
    Unit Price
    €2,51 per m²
    Sale price
    €225,95 EUR ex. GB VAT
    Unit Price
    €3,01 per m²
    Regular price
    you save €-225,95
    Unit Price
    €2,51 per m²
    Regular price
    €0,00 you save €-188,29
  • Pro Clima Roflex Solido 100 - Airtight Pipe Grommet (Pack of 6)
    ROFLEX SOLIDO by Pro Clima

    Translation missing: en.products.product.sku:PC/RS100

    Pro Clima Roflex Solido 100 - Airtight Pipe Grommet (Pack of 6)

    Regular price
    €39,95 EUR ex. GB VAT
    Unit Price
    €6,65 per ea
    Unit Price
    €5,55 per ea
    Sale price
    €39,95 EUR ex. GB VAT
    Unit Price
    €6,65 per ea
    Regular price
    you save €-39,95
    Unit Price
    €5,55 per ea
    Regular price
    €0,00 you save €-33,29
  • Pro Clima Stoppa - 20mm (20 per pack)
    STOPPA by Pro Clima

    Translation missing: en.products.product.sku:PC/S20-20

    Pro Clima Stoppa - 20mm (20 per pack)

    Regular price
    €19,95 EUR ex. GB VAT
    Unit Price
    €0,99 per ea
    Unit Price
    €0,83 per ea
    Sale price
    €19,95 EUR ex. GB VAT
    Unit Price
    €0,99 per ea
    Regular price
    you save €-19,95
    Unit Price
    €0,83 per ea
    Regular price
    €0,00 you save €-16,63
  • Pro Clima Orcon Multibond - Membrane Adhesive Strip Roll (Pack of 2)
    ORCON by Pro Clima

    Translation missing: en.products.product.sku:PC/ORCM

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

    Regular price
    €57,95 EUR ex. GB VAT
    Unit Price
    €2,89 per LM (linear metre)
    Unit Price
    €2,41 per LM (linear metre)
    Sale price
    €57,95 EUR ex. GB VAT
    Unit Price
    €2,89 per LM (linear metre)
    Regular price
    you save €-57,95
    Unit Price
    €2,41 per LM (linear metre)
    Regular price
    €0,00 you save €-48,29
  • SIGA Wetguard® 200 SA - 390mm x 50m
    WETGUARD® by SIGA

    Translation missing: en.products.product.sku:SIG/WG200S-39

    SIGA Wetguard® 200 SA - 390mm x 50m

    Regular price
    €207,95 EUR ex. GB VAT
    Unit Price
    €10,66 per m²
    Unit Price
    €8,89 per m²
    Sale price
    €207,95 EUR ex. GB VAT
    Unit Price
    €10,66 per m²
    Regular price
    you save €-207,95
    Unit Price
    €8,89 per m²
    Regular price
    €0,00 you save €-173,29
  • Pro Clima Stoppa - 16mm (20 per pack)
    STOPPA by Pro Clima

    Translation missing: en.products.product.sku:PC/S16-20

    Pro Clima Stoppa - 16mm (20 per pack)

    Regular price
    €18,95 EUR ex. GB VAT
    Sale price
    €18,95 EUR ex. GB VAT
    Regular price
    you save €-18,95
    Regular price
    €0,00 you save €-15,79
  • Pro Clima Solitex Fronta WA - Wall Lining Membrane (3m x 50m)
    SOLITEX FRONTA WA by Pro Clima

    Translation missing: en.products.product.sku:PC/FWA30050

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

    Regular price
    €347,95 EUR ex. GB VAT
    Sale price
    €347,95 EUR ex. GB VAT
    Regular price
    you save €-347,95
    Regular price
    €0,00 you save €-289,96
  • Pro Clima Roflex Solido 50 - Airtight Pipe Grommet (Pack of 6)
    ROFLEX SOLIDO by Pro Clima

    Translation missing: en.products.product.sku:PC/RS50

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

    Regular price
    €28,95 EUR ex. GB VAT
    Unit Price
    €4,82 per ea
    Unit Price
    €4,02 per ea
    Sale price
    €28,95 EUR ex. GB VAT
    Unit Price
    €4,82 per ea
    Regular price
    you save €-28,95
    Unit Price
    €4,02 per ea
    Regular price
    €0,00 you save €-24,13
  • SIGA Majvest® 200 SOB - Breather Membrane with Tape (Particularly for Closed Facade)
    MAJVEST® 200 SOB by SIGA

    Translation missing: en.products.product.sku:SIG/MV200S

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

    Regular price
    €223,95 EUR ex. GB VAT
    Unit Price
    €2,98 per m²
    Unit Price
    €2,49 per m²
    Sale price
    €223,95 EUR ex. GB VAT
    Unit Price
    €2,98 per m²
    Regular price
    you save €-223,95
    Unit Price
    €2,49 per m²
    Regular price
    €0,00 you save €-186,63
  • Pro Clima Glumex - Adhesive Remover (400ml)
    GLUMEX by Pro Clima

    Translation missing: en.products.product.sku:PC/GLU

    Pro Clima Glumex - Adhesive Remover (400ml)

    Regular price
    €12,95 EUR ex. GB VAT
    Sale price
    €12,95 EUR ex. GB VAT
    Regular price
    you save €-12,95
    Regular price
    €0,00 you save €-10,79
  • SIGA Wigluv® 150 External Adhesive Tape - (150mm x 25m)
    WIGLUV® 150 by SIGA

    Translation missing: en.products.product.sku:SIG/WL150

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

    Regular price
    €83,95 EUR ex. GB VAT
    Unit Price
    €3,35 per LM (linear metre)
    Unit Price
    €2,80 per LM (linear metre)
    Sale price
    €83,95 EUR ex. GB VAT
    Unit Price
    €3,35 per LM (linear metre)
    Regular price
    you save €-83,95
    Unit Price
    €2,80 per LM (linear metre)
    Regular price
    €0,00 you save €-69,96
  • SIGA Fentrim® 2 (Pre-folded External Corner Tape) - All sizes
    FENTRIM® 2 by SIGA

    Translation missing: en.products.product.sku:SIG/F2100

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

    Regular price
    From €68,95 EUR ex. GB VAT
    Unit Price
    €2,75 per LM (linear metre)
    Unit Price
    €2,30 per LM (linear metre)
    Sale price
    From €68,95 EUR ex. GB VAT
    Unit Price
    €2,75 per LM (linear metre)
    Regular price
    you save €-68,95
    Unit Price
    €2,30 per LM (linear metre)
    Regular price
    €0,00 you save €-57,46
  • Pro Clima Solitex Fronta Humida - Wall Lining Membrane (1.5m x 50m)
    SOLITEX FRONTA HUMIDA by Pro Clima

    Translation missing: en.products.product.sku:PC/FH15050

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

    Regular price
    €274,95 EUR ex. GB VAT
    Unit Price
    €3,66 per m²
    Unit Price
    €3,06 per m²
    Sale price
    €274,95 EUR ex. GB VAT
    Unit Price
    €3,66 per m²
    Regular price
    you save €-274,95
    Unit Price
    €3,06 per m²
    Regular price
    €0,00 you save €-229,13
  • SIGA Farmer Waterproof High Performance Multi-purpose Tape - 60mm x 15m
    FARMER by SIGA

    Translation missing: en.products.product.sku:SIGA/F60

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

    Regular price
    €21,95 EUR ex. GB VAT
    Unit Price
    €1,46 per LM (linear metre)
    Unit Price
    €1,22 per LM (linear metre)
    Sale price
    €21,95 EUR ex. GB VAT
    Unit Price
    €1,46 per LM (linear metre)
    Regular price
    you save €-21,95
    Unit Price
    €1,22 per LM (linear metre)
    Regular price
    €0,00 you save €-18,29
  • SIGA Wetguard® 200 SA - 1560mm x 50m
    WETGUARD® by SIGA

    Translation missing: en.products.product.sku:SIG/WG200S-156

    SIGA Wetguard® 200 SA - 1560mm x 50m

    Regular price
    €781,95 EUR ex. GB VAT
    Unit Price
    €10,02 per m²
    Unit Price
    €8,35 per m²
    Sale price
    €781,95 EUR ex. GB VAT
    Unit Price
    €10,02 per m²
    Regular price
    you save €-781,95
    Unit Price
    €8,35 per m²
    Regular price
    €0,00 you save €-651,63
  • Pro Clima Solitex Adhero 3000 - Self Adhesive Vapour Permeable Membrane (1.5m X 30m)
    SOLITEX by Pro Clima

    Translation missing: en.products.product.sku:PC/SEA

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

    Regular price
    €423,95 EUR ex. GB VAT
    Unit Price
    €9,42 per m²
    Unit Price
    €7,85 per m²
    Sale price
    €423,95 EUR ex. GB VAT
    Unit Price
    €9,42 per m²
    Regular price
    you save €-423,95
    Unit Price
    €7,85 per m²
    Regular price
    €0,00 you save €-353,29
  • SIGA Dockskin® 200 Mineral Surface Primer - 1kg bottle
    DOCKSKIN® by SIGA

    Translation missing: en.products.product.sku:SIG/DS200-1

    SIGA Dockskin® 200 Mineral Surface Primer - 1kg bottle

    Regular price
    €41,95 EUR ex. GB VAT
    Sale price
    €41,95 EUR ex. GB VAT
    Regular price
    you save €-41,95
    Regular price
    €0,00 you save €-34,96
  • Pro Clima Extoseal Encors - 300mm x 20m
    EXTOSEAL by Pro Clima

    Translation missing: en.products.product.sku:PC/ENCORS300

    Pro Clima Extoseal Encors - 300mm x 20m

    Regular price
    €283,95 EUR ex. GB VAT
    Unit Price
    €14,19 per LM (linear metre)
    Unit Price
    €11,83 per LM (linear metre)
    Sale price
    €283,95 EUR ex. GB VAT
    Unit Price
    €14,19 per LM (linear metre)
    Regular price
    you save €-283,95
    Unit Price
    €11,83 per LM (linear metre)
    Regular price
    €0,00 you save €-236,63