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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  • SIGA Rissan® 60 VCL & Jointing Airtightness Tape - 60mm x 25m | Insulation Merchant SIGA Rissan® 60 VCL & Jointing Airtightness Tape - 60mm x 25m | Insulation Merchant
    Spring Savings
    RISSAN® 60 by SIGA

    SIGA Rissan® 60 VCL & Jointing Airtightness Tape - 60mm x 25m

    £28.40 inc. VAT
    £1.13 per LM (linear metre)
    £23.67 ex. VAT
    £0.95 per LM (linear metre)
    £28.40 inc. VAT
    £1.13 per LM (linear metre)
    Save £-28.40
    £23.67 ex. VAT
    £0.95 per LM (linear metre)
    £0.00 Save £-23.67
  • Pro Clima Contega Solido SL100 (Internal Single-sIded Corner Adhesive Tape) - 100mm x 30m | Insulation Merchant Pro Clima Contega Solido SL100 (Internal Single-sIded Corner Adhesive Tape) - 100mm x 30m | Insulation Merchant
    Sale
    CONTEGA SOLIDO SL by Pro Clima

    Pro Clima Contega Solido SL100 (Internal Single-sIded Corner Adhesive Tape) - 100mm x 30m

    £60.40 inc. VAT
    £2.01 per LM (linear metre)
    £50.33 ex. VAT
    £1.68 per LM (linear metre)
    £60.40 inc. VAT
    £2.01 per LM (linear metre)
    £62.04 Save £1.64
    £50.33 ex. VAT
    £1.68 per LM (linear metre)
    £51.70 Save £1.37
  • Pro Clima Compego Tape | Insulation Merchant
    Sale 9%
    COMPEGO by Pro Clima

    Pro Clima Compego Tape

    From £19.90 inc. VAT
    From £16.58 ex. VAT
    From £19.90 inc. VAT
    £21.96 Save £2.06
    From £16.58 ex. VAT
    £18.30 Save £1.72
  • 80m Pro Clima Duplex Double Sided Membrane Tape | Insulation Merchant 80m Pro Clima Duplex Double Sided Membrane Tape | Insulation Merchant
    Sale
    DUPLEX by Pro Clima

    80m Pro Clima Duplex Double Sided Membrane Tape

    £26.30 inc. VAT
    £0.32 per LM (linear metre)
    £21.92 ex. VAT
    £0.27 per LM (linear metre)
    £26.30 inc. VAT
    £0.32 per LM (linear metre)
    £27.00 Save £0.70
    £21.92 ex. VAT
    £0.27 per LM (linear metre)
    £22.50 Save £0.58
  • Pro Clima Kaflex Post - Retrofit Airtight Cable Grommet (Pack of 10) | Insulation Merchant Pro Clima Kaflex Post - Retrofit Airtight Cable Grommet (Pack of 10) | Insulation Merchant
    Sale
    KAFLEX by Pro Clima

    Pro Clima Kaflex Post - Retrofit Airtight Cable Grommet (Pack of 10)

    £34.90 inc. VAT
    £3.49 per ea
    £29.08 ex. VAT
    £2.91 per ea
    £34.90 inc. VAT
    £3.49 per ea
    £35.52 Save £0.62
    £29.08 ex. VAT
    £2.91 per ea
    £29.60 Save £0.52
  • SIGA Wigluv® 60 External Adhesive Tape (40m x 60mm) | Insulation Merchant SIGA Wigluv® 60 External Adhesive Tape (40m x 60mm) | Insulation Merchant
    Spring Savings
    WIGLUV® 60 by SIGA

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

    £47.10 inc. VAT
    £1.17 per LM (linear metre)
    £39.25 ex. VAT
    £0.98 per LM (linear metre)
    £47.10 inc. VAT
    £1.17 per LM (linear metre)
    Save £-47.10
    £39.25 ex. VAT
    £0.98 per LM (linear metre)
    £0.00 Save £-39.25
  • 150mm Pro Clima Tescon Vana - Sealing Adhesive Tape (30m) | Insulation Merchant 150mm Pro Clima Tescon Vana - Sealing Adhesive Tape (30m) | Insulation Merchant
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    TESCON by Pro Clima

    150mm Pro Clima Tescon Vana - Sealing Adhesive Tape (30m)

    £78.90 inc. VAT
    £2.63 per LM (linear metre)
    £65.75 ex. VAT
    £2.19 per LM (linear metre)
    £78.90 inc. VAT
    £2.63 per LM (linear metre)
    £80.88 Save £1.98
    £65.75 ex. VAT
    £2.19 per LM (linear metre)
    £67.40 Save £1.65
  • Pro Clima Roflex 20 - Airtight Pipe Grommet (Pack of 15) | Insulation Merchant Pro Clima Roflex 20 - Airtight Pipe Grommet (Pack of 15) | Insulation Merchant
    Sale 12%
    ROFLEX by Pro Clima

    Pro Clima Roflex 20 - Airtight Pipe Grommet (Pack of 15)

    £44.50 inc. VAT
    £2.96 per ea
    £37.08 ex. VAT
    £2.47 per ea
    £44.50 inc. VAT
    £2.96 per ea
    £50.76 Save £6.26
    £37.08 ex. VAT
    £2.47 per ea
    £42.30 Save £5.22
  • Pro Clima Tescon Naideck - Sealing Adhesive Tape (50mm x 20m) | Insulation Merchant Pro Clima Tescon Naideck - Sealing Adhesive Tape (50mm x 20m) | Insulation Merchant
    Sale
    TESCON by Pro Clima

    Pro Clima Tescon Naideck - Sealing Adhesive Tape (50mm x 20m)

    £21.30 inc. VAT
    £17.75 ex. VAT
    £21.30 inc. VAT
    £21.84 Save £0.54
    £17.75 ex. VAT
    £18.20 Save £0.45
  • Pro Clima Kaflex Mono - Airtight Cable Grommet (Pack of 15) | Insulation Merchant Pro Clima Kaflex Mono - Airtight Cable Grommet (Pack of 15) | Insulation Merchant
    Sale
    KAFLEX by Pro Clima

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

    £45.60 inc. VAT
    £38.00 ex. VAT
    £45.60 inc. VAT
    £45.84 Save £0.24
    £38.00 ex. VAT
    £38.20 Save £0.20
  • SIGA Majcoat® 200 SOB Diffusion Open Roof Breather Membrane - 1.5m x 50m | Insulation Merchant SIGA Majcoat® 200 SOB Diffusion Open Roof Breather Membrane - 1.5m x 50m | Insulation Merchant
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    MAJCOAT® 200 by SIGA

    SIGA Majcoat® 200 SOB Diffusion Open Roof Breather Membrane - 1.5m x 50m

    £317.65 inc. VAT
    £4.23 per m²
    £264.71 ex. VAT
    £3.53 per m²
    £317.65 inc. VAT
    £4.23 per m²
    Save £-317.65
    £264.71 ex. VAT
    £3.53 per m²
    £0.00 Save £-264.71
  • SIGA Twinet® 20 VCL Mounting Tape | Insulation Merchant SIGA Twinet® 20 VCL Mounting Tape | Insulation Merchant
    Spring Savings
    TWINET® by SIGA

    SIGA Twinet® 20 VCL Mounting Tape

    £39.35 inc. VAT
    £0.78 per LM (linear metre)
    £32.79 ex. VAT
    £0.66 per LM (linear metre)
    £39.35 inc. VAT
    £0.78 per LM (linear metre)
    Save £-39.35
    £32.79 ex. VAT
    £0.66 per LM (linear metre)
    £0.00 Save £-32.79
  • SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant
    Spring Savings
    MAJREX® by SIGA

    SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²)

    £380.90 inc. VAT
    £5.07 per m²
    £317.42 ex. VAT
    £4.23 per m²
    £380.90 inc. VAT
    £5.07 per m²
    Save £-380.90
    £317.42 ex. VAT
    £4.23 per m²
    £0.00 Save £-317.42
  • SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²) | Insulation Merchant
    Spring Savings
    MAJPELL® 5 VCL by SIGA

    SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²)

    £233.70 inc. VAT
    £3.11 per m²
    £194.75 ex. VAT
    £2.60 per m²
    £233.70 inc. VAT
    £3.11 per m²
    Save £-233.70
    £194.75 ex. VAT
    £2.60 per m²
    £0.00 Save £-194.75
  • Pro Clima Extoseal Encors - 100mm x 20m | Insulation Merchant Pro Clima Extoseal Encors - 100mm x 20m | Insulation Merchant
    Sale
    EXTOSEAL by Pro Clima

    Pro Clima Extoseal Encors - 100mm x 20m

    £92.30 inc. VAT
    £4.61 per LM (linear metre)
    £76.92 ex. VAT
    £3.85 per LM (linear metre)
    £92.30 inc. VAT
    £4.61 per LM (linear metre)
    £94.80 Save £2.50
    £76.92 ex. VAT
    £3.85 per LM (linear metre)
    £79.00 Save £2.08
  • Pro Clima Contega Solido EXO100 (External Single-sIded Corner Adhesive Tape) - 30m x 100mm | Insulation Merchant Pro Clima Contega Solido EXO100 (External Single-sIded Corner Adhesive Tape) - 30m x 100mm | Insulation Merchant
    Sale
    CONTEGA SOLIDO EXO by Pro Clima

    Pro Clima Contega Solido EXO100 (External Single-sIded Corner Adhesive Tape) - 30m x 100mm

    £60.40 inc. VAT
    £50.33 ex. VAT
    £60.40 inc. VAT
    £62.04 Save £1.64
    £50.33 ex. VAT
    £51.70 Save £1.37
  • Pro Clima Aerosanna Visconn Spray/Paintable Airtight Sealant Membrane | Insulation Merchant Pro Clima Aerosanna Visconn Spray/Paintable Airtight Sealant Membrane | Insulation Merchant
    Sale 14%
    AEROSANA VISCONN by Pro Clima

    Pro Clima Aerosanna Visconn Spray/Paintable Airtight Sealant Membrane

    From £10.40 inc. VAT
    From £8.67 ex. VAT
    From £10.40 inc. VAT
    £12.12 Save £1.72
    From £8.67 ex. VAT
    £10.10 Save £1.43
  • SIGA Wigluv® 20/40 Split External Adhesive Tape (60mm x 25m) | Insulation Merchant SIGA Wigluv® 20/40 Split External Adhesive Tape (60mm x 25m) | Insulation Merchant
    Spring Savings
    WIGLUV® 20/40 by SIGA

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

    £43.20 inc. VAT
    £1.72 per LM (linear metre)
    £36.00 ex. VAT
    £1.44 per LM (linear metre)
    £43.20 inc. VAT
    £1.72 per LM (linear metre)
    Save £-43.20
    £36.00 ex. VAT
    £1.44 per LM (linear metre)
    £0.00 Save £-36.00
  • Pro Clima Contega Solido SL-D80 (External Double-sIded Corner Adhesive Tape) - 80mm x 30m | Insulation Merchant Pro Clima Contega Solido SL-D80 (External Double-sIded Corner Adhesive Tape) - 80mm x 30m | Insulation Merchant
    Sale
    CONTEGA SOLIDO SL-D by Pro Clima

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

    £66.40 inc. VAT
    £2.21 per LM (linear metre)
    £55.33 ex. VAT
    £1.84 per LM (linear metre)
    £66.40 inc. VAT
    £2.21 per LM (linear metre)
    £68.16 Save £1.76
    £55.33 ex. VAT
    £1.84 per LM (linear metre)
    £56.80 Save £1.47
  • Pro Clima Contega Solido SL150 (Internal Single-sIded Corner Adhesive Tape) - 150mm x 30m | Insulation Merchant Pro Clima Contega Solido SL150 (Internal Single-sIded Corner Adhesive Tape) - 150mm x 30m | Insulation Merchant
    Sale
    CONTEGA SOLIDO SL by Pro Clima

    Pro Clima Contega Solido SL150 (Internal Single-sIded Corner Adhesive Tape) - 150mm x 30m

    £88.90 inc. VAT
    £2.96 per LM (linear metre)
    £74.08 ex. VAT
    £2.47 per LM (linear metre)
    £88.90 inc. VAT
    £2.96 per LM (linear metre)
    £91.32 Save £2.42
    £74.08 ex. VAT
    £2.47 per LM (linear metre)
    £76.10 Save £2.02