Cavity Barriers

A range of cavity barriers for masonry and timber frames. Both full fill and expanding are available. IF you are looking for a size that is not showing, then please get in touch.
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Price: 0 – £134.90
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  • ENVIROGRAF FFCB Rainscreen Fast Fix Cavity Barrier - (25mm airflow) - ALL SIZES ENVIROGRAF FFCB Rainscreen Fast Fix Cavity Barrier - (25mm airflow) - ALL SIZES
    FFCB (25MM AIR GAP) by Envirograf

    ENV/FFCB25-50

    ENVIROGRAF FFCB Rainscreen Fast Fix Cavity Barrier - (25mm airflow) - ALL SIZES

    From £10.60 inc. VAT
    £8.83 per LM (linear metre)
    From £8.83 ex. VAT
    £7.36 per LM (linear metre)
    From £10.60 inc. VAT
    £8.83 per LM (linear metre)
    you save £-10.60
    From £8.83 ex. VAT
    £7.36 per LM (linear metre)
    £0.00 you save £-8.83
  • 130mm Mayplas Timber Frame Cavity Barrier TCB MP551 CFB (145x150mm) - pack of 10 | Insulation Merchant 130mm Mayplas Timber Frame Cavity Barrier TCB MP551 CFB (145x150mm) - pack of 10 | Insulation Merchant
    TCB CAVITY BARRIER by Mayplas

    MAY/MP551-145150/PK

    130mm Mayplas Timber Frame Cavity Barrier TCB MP551 CFB (145x150mm) - pack of 10

    £ Looking for a price?

    Add to a quote for our best rate.

  • ENVIROGRAF CV30/12 v Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 12mm (95-105mm Gap) ENVIROGRAF CV30/12 v Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 12mm (95-105mm Gap)
    Autumn Offers
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    CAVITY BARRIER by Envirograf

    ENV/CV30-212V

    ENVIROGRAF CV30/12 v Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 12mm (95-105mm Gap)

    £42.94 inc. VAT
    £21.47 per LM (linear metre)
    £35.78 ex. VAT
    £17.89 per LM (linear metre)
    £42.94 inc. VAT
    £21.47 per LM (linear metre)
    you save £-42.94
    £35.78 ex. VAT
    £17.89 per LM (linear metre)
    £0.00 you save £-35.78
  • Firezero Multi Sock Cavity Stop TCB (White) - 1200mm x 101-110mm Firezero Multi Sock Cavity Stop TCB (White) - 1200mm x 101-110mm
    TCB CAVITY BARRIER by Firezero

    FZ/MS-101

    Firezero Multi Sock Cavity Stop TCB (White) - 1200mm x 101-110mm

    £6.90 inc. VAT
    £5.75 ex. VAT
    £6.90 inc. VAT
    you save £-6.90
    £5.75 ex. VAT
    £0.00 you save £-5.75
  • 90mm Rockwool PWCB Party Wall Cavity Barrier (70-80 cavity) - Pack of 12
    PWCB by Rockwool

    RW/PWCB-90

    90mm Rockwool PWCB Party Wall Cavity Barrier (70-80 cavity) - Pack of 12

    £ Looking for a price?

    Add to a quote for our best rate.

  • by SIDERISE

    SID/RV120-120

    SIDERISE RV vertical Rainscreen Cavity Barrier - 1200x1200x120mm

    £ Looking for a price?

    Add to a quote for our best rate.

  • ENVIROGRAF FFCB Rainscreen Fast Fix Cavity Barrier - (40mm airflow) - ALL SIZES ENVIROGRAF FFCB Rainscreen Fast Fix Cavity Barrier - (40mm airflow) - ALL SIZES
    FFCB (40MM AIR GAP) by Envirograf

    ENV/FFCB40-50

    ENVIROGRAF FFCB Rainscreen Fast Fix Cavity Barrier - (40mm airflow) - ALL SIZES

    From £16.77 inc. VAT
    £13.98 per LM (linear metre)
    From £13.98 ex. VAT
    £11.65 per LM (linear metre)
    From £16.77 inc. VAT
    £13.98 per LM (linear metre)
    you save £-16.77
    From £13.98 ex. VAT
    £11.65 per LM (linear metre)
    £0.00 you save £-13.98
  • 75mm Mayplas Masonry Cavity Stop Sock MP552
    MASONRY CAVITY BARRIER by Mayplas

    MAY/MP552-9075

    75mm Mayplas Masonry Cavity Stop Sock MP552

    £ Looking for a price?

    Add to a quote for our best rate.

  • 85mm Mayplas Timber Frame Cavity Barrier TCB 551 (100x100mm) - per length 85mm Mayplas Timber Frame Cavity Barrier TCB 551 (100x100mm) - per length
    TCB CAVITY BARRIER by Mayplas

    MAY/TCB551-100

    85mm Mayplas Timber Frame Cavity Barrier TCB 551 (100x100mm) - per length

    £ Looking for a price?

    Add to a quote for our best rate.

  • Rockwool SCB (Sleeved Cavity Barrier) for Masonry, Timber and Steel-frame Rockwool SCB (Sleeved Cavity Barrier) for Masonry, Timber and Steel-frame
    SCB (SLEEVED CAVITY BARRIER) by Rockwool

    Rockwool SCB (Sleeved Cavity Barrier) for Masonry, Timber and Steel-frame

    £ Looking for a price?

    Add to a quote for our best rate.

  • 205mm Rockwool TCB Cavity Barrier (85-190mm cavity) - per length | Insulation Merchant
    TCB CAVITY BARRIER by Rockwool

    RW/TCB-205

    205mm Rockwool TCB Cavity Barrier (85-190mm cavity) - per length

    £31.36 inc. VAT
    £26.13 per LM (linear metre)
    £26.13 ex. VAT
    £21.78 per LM (linear metre)
    £31.36 inc. VAT
    £26.13 per LM (linear metre)
    you save £-31.36
    £26.13 ex. VAT
    £21.78 per LM (linear metre)
    £0.00 you save £-26.13
  • Rockwool | Insulation Merchant Rockwool | Insulation Merchant
    PWCB by Rockwool

    RW/PWCB-160

    160mm Rockwool PWCB Party Wall Cavity Barrier (141-150 cavity) - Pack of 6

    £ Looking for a price?

    Add to a quote for our best rate.

  • Rockwool | Insulation Merchant Rockwool | Insulation Merchant
    PWCB by Rockwool

    RW/PWCB-150

    150mm Rockwool PWCB Party Wall Cavity Barrier (131-140 cavity) - Pack of 6

    £ Looking for a price?

    Add to a quote for our best rate.

  • 110mm Rockwool PWCB Party Wall Cavity Barrier (90-100 cavity) - Pack of 10 | Insulation Merchant 110mm Rockwool PWCB Party Wall Cavity Barrier (90-100 cavity) - Pack of 10 | Insulation Merchant
    PWCB by Rockwool

    RW/PWCB-110

    110mm Rockwool PWCB Party Wall Cavity Barrier (90-100 cavity) - Pack of 10

    £ Looking for a price?

    Add to a quote for our best rate.

  • Rockwool
    PWCB by Rockwool

    RW/PWCB-65

    65mm Rockwool PWCB Party Wall Cavity Barrier (50-55 cavity) - Pack of 18

    £ Looking for a price?

    Add to a quote for our best rate.

  • Dacatie TFR1000 Fire Rated Cavity Closer Barrier (Standard/Flush Reveal) Dacatie TFR1000 Fire Rated Cavity Closer Barrier (Standard/Flush Reveal)
    TFR1000 by Dacatie

    DAC/TFR1CC-10024

    Dacatie TFR1000 Fire Rated Cavity Closer Barrier (Standard/Flush Reveal)

    £ Looking for a price?

    Add to a quote for our best rate.

  • Mayplas Timber Frame Cavity Barrier TCB 551 4| Insulation Merchant Mayplas Timber Frame Cavity Barrier TCB 551 | Insulation Merchant
    TCB CAVITY BARRIER by Mayplas

    MAY/MP551-115100

    100mm Mayplas Timber Frame Cavity Barrier TCB 551 (115x100mm) - per length

    £ Looking for a price?

    Add to a quote for our best rate.

  • 50mm Mayplas XPS Cavity Closer (Single Flange) - pack of 10 | Insulation Merchant
    XPS CAVITY CLOSER by Mayplas

    MAY/XPSCCSF-50/PK

    50mm Mayplas XPS Cavity Closer (Single Flange) - pack of 10

    £ Looking for a price?

    Add to a quote for our best rate.

  • 125mm Mayplas XPS Cavity Closer (Double Flange) - pack of 10 | Insulation Merchant
    XPS CAVITY CLOSER by Mayplas

    MAY/XPSCCDF-125/PK

    125mm Mayplas XPS Cavity Closer (Double Flange) - pack of 10

    £ Looking for a price?

    Add to a quote for our best rate.

  • 160mm Mayplas Timber Frame Cavity Barrier TCB MP551 CFB (180x150mm) - pack of 5 | Insulation Merchant 160mm Mayplas Timber Frame Cavity Barrier TCB MP551 CFB (180x150mm) - pack of 5 | Insulation Merchant
    TCB CAVITY BARRIER by Mayplas

    MAY/MP551-160180

    160mm Mayplas Timber Frame Cavity Barrier TCB MP551 CFB (180x150mm) - pack of 5

    £ Looking for a price?

    Add to a quote for our best rate.