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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Showing 174 of 174 products
  • 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)

    £125.93 per item
    £1.67 per m²
    ex. GB VAT
    Save £-125.93
    £125.93 per item
    £1.67 per m²
    ex. GB VAT
  • SIGA | Insulation Merchant
    External Use
    FENTRIM® by SIGA

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

    From £57.79 per item
    £2.31 per LM (linear metre)
    ex. GB VAT
    Save £-57.79
    From £57.79 per item
    £2.31 per LM (linear metre)
    ex. GB VAT
  • SIGA Farmer Waterproof High Performance Multi-purpose Tape - 60mm x 15m | Insulation Merchant
    FARMER by SIGA

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

    £18.25 per item
    £1.21 per LM (linear metre)
    ex. GB VAT
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    £18.25 per item
    £1.21 per LM (linear metre)
    ex. GB VAT
  • Pro Clima Stoppa - 20mm (20 per pack) | Insulation Merchant
    STOPPA by Pro Clima

    Pro Clima Stoppa - 20mm (20 per pack)

    £17.46 per item
    £0.87 per ea
    ex. GB VAT
    £17.30 Save £-0.16
    £17.46 per item
    £0.87 per ea
    ex. GB VAT
  • Pro Clima Extoseal Encors - 300mm x 20m | Insulation Merchant
    Sale
    EXTOSEAL by Pro Clima

    Pro Clima Extoseal Encors - 300mm x 20m

    £230.75 per item
    £11.53 per LM (linear metre)
    ex. GB VAT
    £237.00 Save £6.25
    £230.75 per item
    £11.53 per LM (linear metre)
    ex. GB VAT
  • Pro Clima Contega Fiden Exo (Expansion Joint Tape) - Joint 10-18mm - Roll 20mm x 2.6m | Insulation Merchant
    Sale 12%
    CONTEGA FIDEN EXO by Pro Clima

    Pro Clima Contega Fiden Exo (Expansion Joint Tape) - Joint 8-15mm - Roll 20mm x 3.3m

    £6.40 per item
    ex. GB VAT
    £7.30 Save £0.90
    £6.40 per item
    ex. GB VAT
  • ROTHOBLAAS Double Band (Double-sided Tape) (40mm x 50m)
    Internal Use
    DOUBLE BAND by Rothoblaas

    ROTHOBLAAS Double Band (Double-sided Tape) (40mm x 50m)

    £17.72 per item
    £0.35 per LM (linear metre)
    ex. GB VAT
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    £17.72 per item
    £0.35 per LM (linear metre)
    ex. GB VAT
  • ROTHOBLAAS Traspir 150 (Breather Membrane) [BBA]
    External Use
    TRASPIR by Rothoblaas

    ROTHOBLAAS Traspir 150 (Breather Membrane) [BBA]

    From £0.83 per item
    £0.01 per m²
    ex. GB VAT
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    From £0.83 per item
    £0.01 per m²
    ex. GB VAT
  • Pro Clima Contega Solido EXO100 (External Single-sIded Corner Adhesive Tape) - 30m x 100mm | Insulation Merchant
    CONTEGA SOLIDO EXO by Pro Clima

    Pro Clima Contega Solido EXO200 (External Single-sided Corner Adhesive Tape) - 30m x 200mm

    £100.86 per item
    ex. GB VAT
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    £100.86 per item
    ex. GB VAT
  • ROTHOBLAAS Universal Primer - 1kg
    PRIMER by Rothoblaas

    ROTHOBLAAS Universal Primer - 1kg

    £19.51 per item
    ex. GB VAT
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    £19.51 per item
    ex. GB VAT
  • ROTHOBLAAS Facade Band UV Airtightness Tape
    External Use
    FLEXI BAND by Rothoblaas

    ROTHOBLAAS Facade Band UV Airtightness Tape

    From £19.20 per item
    ex. GB VAT
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    From £19.20 per item
    ex. GB VAT
  • Pro Clima Aerosanna Fleece | Insulation Merchant
    Sale 4%
    AEROSANA FLEECE by Pro Clima

    Pro Clima Aerosanna Fleece

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  • Pro Clima Contega Solido EXO-D80 (External Double-sIded Corner Adhesive Tape) - 30m x 80mm | Insulation Merchant
    Sale 5%
    CONTEGA SOLIDO EXO-D by Pro Clima

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

    £53.96 per item
    £1.79 per LM (linear metre)
    ex. GB VAT
    £56.80 Save £2.84
    £53.96 per item
    £1.79 per LM (linear metre)
    ex. GB VAT
  • SIGA Wigluv® 150 External Adhesive Tape - (150mm x 25m) | Insulation Merchant
    WIGLUV® by SIGA

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

    £70.67 per item
    £2.82 per LM (linear metre)
    ex. GB VAT
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    £70.67 per item
    £2.82 per LM (linear metre)
    ex. GB VAT
  • SIGA Wetguard® 200 SA - 390mm x 50m | Insulation Merchant
    WETGUARD® by SIGA

    SIGA Wetguard® 200 SA - 390mm x 50m

    £168.92 per item
    £8.66 per m²
    ex. GB VAT
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    £168.92 per item
    £8.66 per m²
    ex. GB VAT
  • SIGA Wetguard® 200 SA - 1560mm x 50m | Insulation Merchant
    WETGUARD® by SIGA

    SIGA Wetguard® 200 SA - 1560mm x 50m

    £636.96 per item
    £8.16 per m²
    ex. GB VAT
    Save £-636.96
    £636.96 per item
    £8.16 per m²
    ex. GB VAT
  • SIGA Fentrim® 330 Grey Adhesive Tape - 150mm | Insulation Merchant
    FENTRIM® by SIGA

    SIGA Fentrim® 330 Grey Adhesive Tape - 150mm

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  • SIGA Fentrim® 2 50/85 (Pre-folded External Corner Tape) - 25m | Insulation Merchant
    FENTRIM® by SIGA

    SIGA Fentrim® 2 50/85 (Pre-folded External Corner Tape) - 25m

    £74.00 per item
    £2.96 per LM (linear metre)
    ex. GB VAT
    Save £-74.00
    £74.00 per item
    £2.96 per LM (linear metre)
    ex. GB VAT
  • Pro Clima Stoppa - 16mm (20 per pack) | Insulation Merchant
    Sale 5%
    STOPPA by Pro Clima

    Pro Clima Stoppa - 16mm (20 per pack)

    £15.42 per item
    ex. GB VAT
    £16.30 Save £0.88
    £15.42 per item
    ex. GB VAT
  • Pro Clima Roflex 250 - Airtight Pipe Grommet (Pack of 2) | Insulation Merchant
    Sale 7%
    ROFLEX by Pro Clima

    Pro Clima Roflex 250 - Airtight Pipe Grommet (Pack of 2)

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