Sustainable Building

Products designed for creating sustainable buildings.
Airtight and windtight systems | Insulation Merchant
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  • 100mm Thermafleece CosyWool Sheep Wool (3 x 400mm rolls) | Insulation Merchant 100mm Thermafleece CosyWool Sheep Wool (3 x 400mm rolls) | Insulation Merchant
    Autumn Offers
    COSYWOOL by Thermafleece

    TF/COSY-100x400

    100mm Thermafleece CosyWool Sheep Wool (3 x 400mm rolls)

    £104.55
    £13.40 per m²
    £87.13 ex. VAT
    £11.17 per m²
    £104.55
    £13.40 per m²
    you save £-104.55
    £87.13 ex. VAT
    £11.17 per m²
    £0.00 you save £-87.13
  • 50mm STEICO Flex 036 - 375mm x 1190mm (4.016m² / 9 per pack) | Insulation Merchant 50mm STEICO Flex 036 - 375mm x 1190mm (4.016m² / 9 per pack) | Insulation Merchant
    Sale 10%
    Autumn Offers
    FLEX 036 by Steico

    STE/FLEX37-50

    50mm STEICO Flex 036 - 375mm x 1190mm (4.016m² / 9 per pack)

    £32.74
    £8.15 per m²
    £27.28 ex. VAT
    £6.79 per m²
    £32.74
    £8.15 per m²
    £36.60 you save £3.86
    £27.28 ex. VAT
    £6.79 per m²
    £30.50 you save £3.22
  • Pro Clima Kaflex Post - Retrofit Airtight Cable Grommet (Pack of 10) Pro Clima Kaflex Post - Retrofit Airtight Cable Grommet (Pack of 10)
    Sale 1%
    KAFLEX by Pro Clima

    PC/KP-10

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

    £34.90
    £3.49 per ea
    £29.08 ex. VAT
    £2.91 per ea
    £34.90
    £3.49 per ea
    £35.52 you save £0.62
    £29.08 ex. VAT
    £2.91 per ea
    £29.60 you save £0.52
  • 140mm STEICO Flex 036 - 575mm x 1190mm (2.737m² / 4 per pack) | Insulation Merchant 140mm STEICO Flex 036 - 575mm x 1190mm (2.737m² / 4 per pack) | Insulation Merchant
    Sale 9%
    Autumn Offers
    FLEX 036 by Steico

    STE/FLEX57-140

    140mm STEICO Flex 036 - 575mm x 1190mm (2.737m² / 4 per pack)

    £61.66
    £22.53 per m²
    £51.38 ex. VAT
    £18.77 per m²
    £61.66
    £22.53 per m²
    £68.39 you save £6.73
    £51.38 ex. VAT
    £18.77 per m²
    £56.99 you save £5.61
  • SIGA Wigluv® 60 External Adhesive Tape (40m x 60mm) SIGA Wigluv® 60 External Adhesive Tape (40m x 60mm)
    WIGLUV® 60 by SIGA

    SIG/WL60

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

    £45.55
    £1.13 per LM (linear metre)
    £37.96 ex. VAT
    £0.95 per LM (linear metre)
    £45.55
    £1.13 per LM (linear metre)
    you save £-45.55
    £37.96 ex. VAT
    £0.95 per LM (linear metre)
    £0.00 you save £-37.96
  • 80mm STEICO Flex 036 - 575mm x 1190mm (6 per pack) 80mm STEICO Flex 036 - 575mm x 1190mm (6 per pack)
    Sale 9%
    Autumn Offers
    FLEX 036 by Steico

    STE/FLEX57-80

    80mm STEICO Flex 036 - 575mm x 1190mm (6 per pack)

    £52.07
    £12.68 per m²
    £43.39 ex. VAT
    £10.57 per m²
    £52.07
    £12.68 per m²
    £57.36 you save £5.29
    £43.39 ex. VAT
    £10.57 per m²
    £47.80 you save £4.41
  • 75mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) 75mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)
    Autumn Offers
    COSYWOOL by Thermafleece

    TF/COSY-75x570

    75mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)

    £97.40
    £10.05 per m²
    £81.17 ex. VAT
    £8.38 per m²
    £97.40
    £10.05 per m²
    you save £-97.40
    £81.17 ex. VAT
    £8.38 per m²
    £0.00 you save £-81.17
  • ADAPTAVATE breathAplasta Thermal (Insulating Breathable Plaster) - 9kg bag
    THERMAL by Adaptavate

    ADA/BT

    ADAPTAVATE breathAplasta Thermal (Insulating Breathable Plaster) - 9kg bag

    £23.10
    £23.10 per m²
    £19.25 ex. VAT
    £19.25 per m²
    £23.10
    £23.10 per m²
    you save £-23.10
    £19.25 ex. VAT
    £19.25 per m²
    £0.00 you save £-19.25
  • 140mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant 140mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls) | Insulation Merchant
    Autumn Offers
    COSYWOOL by Thermafleece

    TF/COSY-140x370

    140mm Thermafleece CosyWool Sheep Wool (3 x 370mm rolls)

    £96.10
    £18.81 per m²
    £80.08 ex. VAT
    £15.67 per m²
    £96.10
    £18.81 per m²
    you save £-96.10
    £80.08 ex. VAT
    £15.67 per m²
    £0.00 you save £-80.08
  • 140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m²) | Insulation Merchant 140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m²) | Insulation Merchant
    Autumn Offers
    INDITHERM HEMP - 370 by IndiNature®

    IN/TH4037-140

    140mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 370mm (1.78m²)

    £39.06
    £21.94 per m²
    £32.55 ex. VAT
    £18.29 per m²
    £39.06
    £21.94 per m²
    you save £-39.06
    £32.55 ex. VAT
    £18.29 per m²
    £0.00 you save £-32.55
  • SIGA Twinet® 20 VCL Mounting Tape SIGA Twinet® 20 VCL Mounting Tape
    TWINET® by SIGA

    SIG/T20

    SIGA Twinet® 20 VCL Mounting Tape

    £38.10
    £0.76 per LM (linear metre)
    £31.75 ex. VAT
    £0.64 per LM (linear metre)
    £38.10
    £0.76 per LM (linear metre)
    you save £-38.10
    £31.75 ex. VAT
    £0.64 per LM (linear metre)
    £0.00 you save £-31.75
  • SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²) SIGA Majrex® 200 (1-directional) Airtight Humidity Vapour Control Layer - 1.5 x 50m (75m²)
    MAJREX® by SIGA

    SIG/MR200

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

    £380.90
    £5.07 per m²
    £317.42 ex. VAT
    £4.23 per m²
    £380.90
    £5.07 per m²
    you save £-380.90
    £317.42 ex. VAT
    £4.23 per m²
    £0.00 you save £-317.42
  • SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²) SIGA Majpell® 5 Vapour Control Layer - 1.5 x 50m (75m²)
    MAJPELL® 5 VCL by SIGA

    SIG/MP5-15

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

    £233.70
    £3.11 per m²
    £194.75 ex. VAT
    £2.60 per m²
    £233.70
    £3.11 per m²
    you save £-233.70
    £194.75 ex. VAT
    £2.60 per m²
    £0.00 you save £-194.75
  • SIGA Majcoat® 200 SOB Diffusion Open Roof Breather Membrane - 1.5m x 50m SIGA Majcoat® 200 SOB Diffusion Open Roof Breather Membrane - 1.5m x 50m
    MAJCOAT® 200 by SIGA

    SIG/MC200S

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

    £317.65
    £4.23 per m²
    £264.71 ex. VAT
    £3.53 per m²
    £317.65
    £4.23 per m²
    you save £-317.65
    £264.71 ex. VAT
    £3.53 per m²
    £0.00 you save £-264.71
  • 60mm STEICO Flex 036 - 575mm x 1190mm (5.474m² / 8 per pack) | Insulation Merchant 60mm STEICO Flex 036 - 575mm x 1190mm (5.474m² / 8 per pack) | Insulation Merchant
    Sale 9%
    Autumn Offers
    FLEX 036 by Steico

    STE/FLEX57-60

    60mm STEICO Flex 036 - 575mm x 1190mm (5.474m² / 8 per pack)

    £52.09
    £9.52 per m²
    £43.41 ex. VAT
    £7.93 per m²
    £52.09
    £9.52 per m²
    £57.38 you save £5.29
    £43.41 ex. VAT
    £7.93 per m²
    £47.82 you save £4.41
  • STEICO zell Air Injected/Loose Fill Wood Fibre Insulation - 15kg STEICO zell Air Injected/Loose Fill Wood Fibre Insulation - 15kg
    ZELL by Steico

    STE/ZELL-15

    STEICO zell Air Injected/Loose Fill Wood Fibre Insulation - 15kg

    £25.45
    £21.21 ex. VAT
    £25.45
    you save £-25.45
    £21.21 ex. VAT
    £0.00 you save £-21.21
  • IndiNature IndiTherm Hemp Flexibatt Insulation | Insulation Merchant IndiNature IndiTherm Hemp Flexibatt | Insulation Merchant
    Autumn Offers
    INDITHERM HEMP - 440 by IndiNature®

    IN/TH4044-100

    100mm IndiNature IndiTherm Hemp Flexibatt Insulation - 1200 x 440mm (2.11m²)

    £33.18
    £15.73 per m²
    £27.65 ex. VAT
    £13.10 per m²
    £33.18
    £15.73 per m²
    you save £-33.18
    £27.65 ex. VAT
    £13.10 per m²
    £0.00 you save £-27.65
  • 140mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant 140mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls) | Insulation Merchant
    Autumn Offers
    COSYWOOL by Thermafleece

    TF/COSY-140x570

    140mm Thermafleece CosyWool Sheep Wool (2 x 570mm rolls)

    £98.50
    £18.80 per m²
    £82.08 ex. VAT
    £15.66 per m²
    £98.50
    £18.80 per m²
    you save £-98.50
    £82.08 ex. VAT
    £15.66 per m²
    £0.00 you save £-82.08
  • SIGA Wigluv® 20/40 Split External Adhesive Tape (60mm x 25m) SIGA Wigluv® 20/40 Split External Adhesive Tape (60mm x 25m)
    WIGLUV® 20/40 by SIGA

    SIG/WL2040

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

    £41.80
    £1.67 per LM (linear metre)
    £34.83 ex. VAT
    £1.39 per LM (linear metre)
    £41.80
    £1.67 per LM (linear metre)
    you save £-41.80
    £34.83 ex. VAT
    £1.39 per LM (linear metre)
    £0.00 you save £-34.83
  • Protect BarriAir Vapour Control Layer with Integrated Tape - 1.5 x 50m Protect BarriAir Vapour Control Layer with Integrated Tape - 1.5 x 50m
    Autumn Offers
    BARRIAIR by Protect Membranes

    PT/BARRIAIR

    Protect BarriAir Vapour Control Layer with Integrated Tape - 1.5 x 50m

    £102.97
    £1.37 per m²
    £85.81 ex. VAT
    £1.14 per m²
    £102.97
    £1.37 per m²
    you save £-102.97
    £85.81 ex. VAT
    £1.14 per m²
    £0.00 you save £-85.81