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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  • Pro Clima Solitex Fronta Quattro - Open Facade Membrane (1.5m x 50m) | Insulation Merchant Pro Clima Solitex Fronta Quattro - Open Facade Membrane (1.5m x 50m) | Insulation Merchant
    Sale
    SOLITEX by Pro Clima

    Pro Clima Solitex Fronta Quattro - Open Facade Membrane (1.5m x 50m)

    £365.60 inc. VAT
    £4.87 per m²
    £304.67 ex. VAT
    £4.06 per m²
    £365.60 inc. VAT
    £4.87 per m²
    £368.16 Save £2.56
    £304.67 ex. VAT
    £4.06 per m²
    £306.80 Save £2.13
  • Pro Clima Orcon F - Flexible airtight solid acrylic sealant (600ml) | Insulation Merchant Pro Clima Orcon F - Flexible airtight solid acrylic sealant (600ml) | Insulation Merchant
    Sale 4%
    ORCON F by Pro Clima

    Pro Clima Orcon F - Flexible airtight solid acrylic sealant (600ml)

    £13.25 inc. VAT
    £0.02 per ml
    £11.04 ex. VAT
    £0.02 per ml
    £13.25 inc. VAT
    £0.02 per ml
    £13.92 Save £0.67
    £11.04 ex. VAT
    £0.02 per ml
    £11.60 Save £0.56
  • SIGA Fentrim® grommet (Black) - External Airtight Cable & Pipe Sealing | Insulation Merchant SIGA Fentrim® grommet (Black) - External Airtight Cable & Pipe Sealing | Insulation Merchant
    Spring Savings
    FENTRIM® GROMMET by SIGA

    SIGA Fentrim® grommet (Black) - External Airtight Cable & Pipe Sealing

    From £4.30 inc. VAT
    From £3.58 ex. VAT
    From £4.30 inc. VAT
    Save £-4.30
    From £3.58 ex. VAT
    £0.00 Save £-3.58
  • Pro Clima Kaflex Duo - Airtight Cable Grommet (Pack of 15) | Insulation Merchant Pro Clima Kaflex Duo - Airtight Cable Grommet (Pack of 15) | Insulation Merchant
    Sale 5%
    KAFLEX by Pro Clima

    Pro Clima Kaflex Duo - Airtight Cable Grommet (Pack of 15)

    £43.50 inc. VAT
    £2.90 per ea
    £36.25 ex. VAT
    £2.42 per ea
    £43.50 inc. VAT
    £2.90 per ea
    £45.84 Save £2.34
    £36.25 ex. VAT
    £2.42 per ea
    £38.20 Save £1.95
  • 60mm SIGA Wigluv® Black 60 External Adhesive Tape - (40m x 60mm) | Insulation Merchant 60mm SIGA Wigluv® Black 60 External Adhesive Tape - (40m x 60mm) | Insulation Merchant
    Spring Savings
    WIGLUV® BLACK 60 by SIGA

    60mm SIGA Wigluv® Black 60 External Adhesive Tape - (40m x 60mm)

    From £63.90 inc. VAT
    £1.59 per LM (linear metre)
    From £53.25 ex. VAT
    £1.33 per LM (linear metre)
    From £63.90 inc. VAT
    £1.59 per LM (linear metre)
    Save £-63.90
    From £53.25 ex. VAT
    £1.33 per LM (linear metre)
    £0.00 Save £-53.25
  • SIGA Majvest® 700 SOB - Open Facade Membrane (1.5m x 33.4m) | Insulation Merchant SIGA Majvest® 700 SOB - Open Facade Membrane (1.5m x 33.4m) | Insulation Merchant
    Spring Savings
    MAJVEST® 700 SOB by SIGA

    SIGA Majvest® 700 SOB - Open Facade Membrane (1.5m x 33.4m)

    £327.15 inc. VAT
    £6.53 per m²
    £272.63 ex. VAT
    £5.44 per m²
    £327.15 inc. VAT
    £6.53 per m²
    Save £-327.15
    £272.63 ex. VAT
    £5.44 per m²
    £0.00 Save £-272.63
  • SIGA Rissan® 100 VCL & Jointing Airtightness Tape - 100mm x 25m | Insulation Merchant SIGA Rissan® 100 VCL & Jointing Airtightness Tape - 100mm x 25m | Insulation Merchant
    Spring Savings
    RISSAN® 100 by SIGA

    SIGA Rissan® 100 VCL & Jointing Airtightness Tape - 100mm x 25m

    £55.80 inc. VAT
    £2.23 per LM (linear metre)
    £46.50 ex. VAT
    £1.86 per LM (linear metre)
    £55.80 inc. VAT
    £2.23 per LM (linear metre)
    Save £-55.80
    £46.50 ex. VAT
    £1.86 per LM (linear metre)
    £0.00 Save £-46.50
  • SIGA Wigluv® 100 External Adhesive Tape - (100mm x 25m) | Insulation Merchant SIGA Wigluv® 100 External Adhesive Tape - (100mm x 25m) | Insulation Merchant
    Spring Savings
    WIGLUV® 100 by SIGA

    SIGA Wigluv® 100 External Adhesive Tape - (100mm x 25m)

    £58.05 inc. VAT
    £2.32 per LM (linear metre)
    £48.38 ex. VAT
    £1.94 per LM (linear metre)
    £58.05 inc. VAT
    £2.32 per LM (linear metre)
    Save £-58.05
    £48.38 ex. VAT
    £1.94 per LM (linear metre)
    £0.00 Save £-48.38
  • SIGA Fentrim® grommet (White) - Internal Airtight Cable & Pipe Sealing | Insulation Merchant SIGA Fentrim® grommet (White) - Internal Airtight Cable & Pipe Sealing | Insulation Merchant
    Spring Savings
    FENTRIM® GROMMET by SIGA

    SIGA Fentrim® grommet (White) - Internal Airtight Cable & Pipe Sealing

    From £4.30 inc. VAT
    From £3.58 ex. VAT
    From £4.30 inc. VAT
    Save £-4.30
    From £3.58 ex. VAT
    £0.00 Save £-3.58
  • SIGA Fentrim® IS 20 (Pre-folded Internal Corner Tape) - All sizes | Insulation Merchant SIGA Fentrim® IS 20 (Pre-folded Internal Corner Tape) - All sizes | Insulation Merchant
    Spring Savings
    Internal Use
    FENTRIM® IS 20 by SIGA

    SIGA Fentrim® IS 20 (Pre-folded Internal Corner Tape) - All sizes

    From £54.05 inc. VAT
    £2.16 per LM (linear metre)
    From £45.04 ex. VAT
    £1.80 per LM (linear metre)
    From £54.05 inc. VAT
    £2.16 per LM (linear metre)
    Save £-54.05
    From £45.04 ex. VAT
    £1.80 per LM (linear metre)
    £0.00 Save £-45.04
  • Pro Clima Dasatop - 1.5m x 50m (75m²) | Insulation Merchant Pro Clima Dasatop - 1.5m x 50m (75m²) | Insulation Merchant
    Sale 10%
    DASATOP by Pro Clima

    Pro Clima Dasatop - 1.5m x 50m (75m²)

    £197.90 inc. VAT
    £2.63 per m²
    £164.92 ex. VAT
    £2.20 per m²
    £197.90 inc. VAT
    £2.63 per m²
    £219.96 Save £22.06
    £164.92 ex. VAT
    £2.20 per m²
    £183.30 Save £18.38
  • SIGA Majvest® 200 - Breather Membrane (Particularly for Closed Facade) | Insulation Merchant SIGA Majvest® 200 - Breather Membrane (Particularly for Closed Facade) | Insulation Merchant
    Spring Savings
    MAJVEST® 200 by SIGA

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

    £195.45 inc. VAT
    £2.60 per m²
    £162.88 ex. VAT
    £2.17 per m²
    £195.45 inc. VAT
    £2.60 per m²
    Save £-195.45
    £162.88 ex. VAT
    £2.17 per m²
    £0.00 Save £-162.88
  • Pro Clima Contega Fiden Exo (Expansion Joint Tape) - Joint 10-18mm - Roll 20mm x 2.6m | Insulation Merchant Pro Clima Contega Fiden Exo (Expansion Joint Tape) - Joint 10-18mm - Roll 20mm x 2.6m | Insulation Merchant
    Sale
    CONTEGA FIDEN EXO by Pro Clima

    Pro Clima Contega Fiden Exo (Expansion Joint Tape) - Joint 10-18mm - Roll 20mm x 2.6m

    £8.70 inc. VAT
    £7.25 ex. VAT
    £8.70 inc. VAT
    £8.76 Save £0.06
    £7.25 ex. VAT
    £7.30 Save £0.05
  • Pro Clima Roflex 100 - Airtight Pipe Grommet (Pack of 10) | Insulation Merchant Pro Clima Roflex 100 - Airtight Pipe Grommet (Pack of 10) | Insulation Merchant
    Sale
    ROFLEX by Pro Clima

    Pro Clima Roflex 100 - Airtight Pipe Grommet (Pack of 10)

    £48.90 inc. VAT
    £4.89 per ea
    £40.75 ex. VAT
    £4.08 per ea
    £48.90 inc. VAT
    £4.89 per ea
    £50.40 Save £1.50
    £40.75 ex. VAT
    £4.08 per ea
    £42.00 Save £1.25
  • Pro Clima Contega Fiden Exo (Expansion Joint Tape) - Joint 5-10mm (Roll 20mm x 5.6m) | Insulation Merchant Pro Clima Contega Fiden Exo (Expansion Joint Tape) - Joint 5-10mm (Roll 20mm x 5.6m) | Insulation Merchant
    Sale
    CONTEGA FIDEN EXO by Pro Clima

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

    £8.94 inc. VAT
    £7.45 ex. VAT
    £8.94 inc. VAT
    £9.00 Save £0.06
    £7.45 ex. VAT
    £7.50 Save £0.05
  • 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
  • SIGA Corvum® 12/48 Pre-folded Corner Adhesive Tape (60mm x 25m) | Insulation Merchant SIGA Corvum® 12/48 Pre-folded Corner Adhesive Tape (60mm x 25m) | Insulation Merchant
    Spring Savings
    CORVUM® by SIGA

    SIGA Corvum® 12/48 Pre-folded Corner Adhesive Tape (60mm x 25m)

    £49.25 inc. VAT
    £1.97 per LM (linear metre)
    £41.04 ex. VAT
    £1.64 per LM (linear metre)
    £49.25 inc. VAT
    £1.97 per LM (linear metre)
    Save £-49.25
    £41.04 ex. VAT
    £1.64 per LM (linear metre)
    £0.00 Save £-41.04
  • 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
  • Pro Clima Contega Fiden Exo (Expansion Joint Tape) - Joint 3-6mm - Roll 12mm x 8m | Insulation Merchant Pro Clima Contega Fiden Exo (Expansion Joint Tape) - Joint 3-6mm - Roll 12mm x 8m | Insulation Merchant
    Sale 11%
    CONTEGA FIDEN EXO by Pro Clima

    Pro Clima Contega Fiden Exo (Expansion Joint Tape) - Joint 3-6mm - Roll 12mm x 8m

    £5.00 inc. VAT
    £4.17 ex. VAT
    £5.00 inc. VAT
    £5.64 Save £0.64
    £4.17 ex. VAT
    £4.70 Save £0.53
  • Pro Clima Extoseal Encors - 200mm x 20m | Insulation Merchant Pro Clima Extoseal Encors - 200mm x 20m | Insulation Merchant
    Sale
    EXTOSEAL by Pro Clima

    Pro Clima Extoseal Encors - 200mm x 20m

    £184.40 inc. VAT
    £153.67 ex. VAT
    £184.40 inc. VAT
    £189.48 Save £5.08
    £153.67 ex. VAT
    £157.90 Save £4.23