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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  • ENVIROGRAF CV30/6 Flexible Strip Cavity Barrier - 2m x 30mm x 6mm (50-60mm Gap) ENVIROGRAF CV30/6 Flexible Strip Cavity Barrier - 2m x 30mm x 6mm (50-60mm Gap)
    Autumn Offers
    Free Shipping
    CAVITY BARRIER by Envirograf

    ENV/CV30-26

    ENVIROGRAF CV30/6 Flexible Strip Cavity Barrier - 2m x 30mm x 6mm (50-60mm Gap)

    €25,95 EUR ex. GB VAT
    €12,97 per LM (linear metre)
    €10,81 per LM (linear metre)
    €25,95 EUR ex. GB VAT
    €12,97 per LM (linear metre)
    you save €-25,95
    €10,81 per LM (linear metre)
    €0,00 you save €-21,63
  • ENVIROGRAF CV30/4 Flexible Strip Cavity Barrier - 2m x 30mm x 4mm (30-45mm Gap) ENVIROGRAF CV30/4 Flexible Strip Cavity Barrier - 2m x 30mm x 4mm (30-45mm Gap)
    Autumn Offers
    Free Shipping
    CAVITY BARRIER by Envirograf

    ENV/CV30-24

    ENVIROGRAF CV30/4 Flexible Strip Cavity Barrier - 2m x 30mm x 4mm (30-45mm Gap)

    €19,95 EUR ex. GB VAT
    €9,97 per LM (linear metre)
    €8,31 per LM (linear metre)
    €19,95 EUR ex. GB VAT
    €9,97 per LM (linear metre)
    you save €-19,95
    €8,31 per LM (linear metre)
    €0,00 you save €-16,63
  • 110mm Rockwool TCB Cavity Barrier (90-100mm cavity) - per length | Insulation Merchant
    TCB CAVITY BARRIER by Rockwool

    RW/TCB-110

    110mm Rockwool TCB Cavity Barrier (90-100mm cavity) - per length

    €10,95 EUR ex. GB VAT
    €9,13 per LM (linear metre)
    €7,60 per LM (linear metre)
    €10,95 EUR ex. GB VAT
    €9,13 per LM (linear metre)
    you save €-10,95
    €7,60 per LM (linear metre)
    €0,00 you save €-9,13
  • 160mm Rockwool TCB Cavity Barrier (141-150 cavity) - per length | Insulation Merchant
    TCB CAVITY BARRIER by Rockwool

    RW/TCB-160

    160mm Rockwool TCB Cavity Barrier (141-150 cavity) - per length

    €20,95 EUR ex. GB VAT
    €17,46 per LM (linear metre)
    €14,55 per LM (linear metre)
    €20,95 EUR ex. GB VAT
    €17,46 per LM (linear metre)
    you save €-20,95
    €14,55 per LM (linear metre)
    €0,00 you save €-17,46
  • 75mm Rockwool TCB Cavity Barrier (56-65 cavity) - per length
    TCB CAVITY BARRIER by Rockwool

    RW/TCB-75

    75mm Rockwool TCB Cavity Barrier (56-65 cavity) - per length

    €8,95 EUR ex. GB VAT
    €7,46 per LM (linear metre)
    €6,22 per LM (linear metre)
    €8,95 EUR ex. GB VAT
    €7,46 per LM (linear metre)
    you save €-8,95
    €6,22 per LM (linear metre)
    €0,00 you save €-7,46
  • ENVIROGRAF CV30/8 v Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 8mm (60-70mm Gap) ENVIROGRAF CV30/8 v Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 8mm (60-70mm Gap)
    Autumn Offers
    Free Shipping
    CAVITY BARRIER by Envirograf

    ENV/CV30-28V

    ENVIROGRAF CV30/8 v Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 8mm (60-70mm Gap)

    €30,95 EUR ex. GB VAT
    €15,47 per LM (linear metre)
    €12,90 per LM (linear metre)
    €30,95 EUR ex. GB VAT
    €15,47 per LM (linear metre)
    you save €-30,95
    €12,90 per LM (linear metre)
    €0,00 you save €-25,79
  • 50mm Mayplas Timber Frame Cavity Barrier TCB 551 (65x65mm) - pack of 40 | Insulation Merchant 50mm Mayplas Timber Frame Cavity Barrier TCB 551 (65x65mm) - pack of 40 | Insulation Merchant
    TCB CAVITY BARRIER by Mayplas

    MAY/TCB551-65_PK

    50mm Mayplas Timber Frame Cavity Barrier TCB 551 (65x65mm) - pack of 40

    €97,95 EUR ex. GB VAT
    €2,04 per LM (linear metre)
    €1,70 per LM (linear metre)
    €97,95 EUR ex. GB VAT
    €2,04 per LM (linear metre)
    you save €-97,95
    €1,70 per LM (linear metre)
    €0,00 you save €-81,63
  • ENVIROGRAF CV30/10 Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 10mm (80/90mm Gap) ENVIROGRAF CV30/10 Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 10mm (80/90mm Gap)
    Autumn Offers
    Free Shipping
    CAVITY BARRIER by Envirograf

    ENV/CV30-210V

    ENVIROGRAF CV30/10 Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 10mm (80/90mm Gap)

    €39,95 EUR ex. GB VAT
    €19,97 per LM (linear metre)
    €16,65 per LM (linear metre)
    €39,95 EUR ex. GB VAT
    €19,97 per LM (linear metre)
    you save €-39,95
    €16,65 per LM (linear metre)
    €0,00 you save €-33,29
  • 50mm Mayplas Masonry Cavity Barrier MP552 CSS (65x65mm) - per length | Insulation Merchant
    TCB CAVITY BARRIER by Mayplas

    MAY/MP552-6565

    50mm Mayplas Masonry Cavity Barrier MP552 CSS (65x65mm) - per length

    € Looking for a price?

    Add to a quote for our best rate.

  • Mayplas Masonry Cavity Stop Sock MP552 | Insulation Merchant
    MASONRY CAVITY BARRIER by Mayplas

    MAY/MP552-115100

    100mm Mayplas Masonry Cavity Stop Sock MP552 - per length

    €6,95 EUR ex. GB VAT
    €5,79 per LM (linear metre)
    €4,83 per LM (linear metre)
    €6,95 EUR ex. GB VAT
    €5,79 per LM (linear metre)
    you save €-6,95
    €4,83 per LM (linear metre)
    €0,00 you save €-5,79
  • ENVIROGRAF CV30/15 Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 15mm (100-120mm Gap) ENVIROGRAF CV30/15 Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 15mm (100-120mm Gap)
    Autumn Offers
    Free Shipping
    CAVITY BARRIER by Envirograf

    ENV/CV30-215V

    ENVIROGRAF CV30/15 Flexible Strip Cavity Barrier (with brackets) - 2m x 30mm x 15mm (100-120mm Gap)

    €46,95 EUR ex. GB VAT
    €23,47 per LM (linear metre)
    €19,56 per LM (linear metre)
    €46,95 EUR ex. GB VAT
    €23,47 per LM (linear metre)
    you save €-46,95
    €19,56 per LM (linear metre)
    €0,00 you save €-39,13
  • 160mm Rockwool TCB Cavity Barrier (141-150 cavity) - pack of 7 | Insulation Merchant
    TCB CAVITY BARRIER by Rockwool

    RW/TCB-160/PK7

    160mm Rockwool TCB Cavity Barrier (141-150 cavity) - pack of 7

    €137,95 EUR ex. GB VAT
    €16,42 per LM (linear metre)
    €13,69 per LM (linear metre)
    €137,95 EUR ex. GB VAT
    €16,42 per LM (linear metre)
    you save €-137,95
    €13,69 per LM (linear metre)
    €0,00 you save €-114,96
  • ENVIROGRAF RSM Cavity Barrier - ALL SIZES ENVIROGRAF RSM Cavity Barrier - ALL SIZES
    RSM by Envirograf

    ENVIROGRAF RSM Cavity Barrier - ALL SIZES

    € Looking for a price?

    Add to a quote for our best rate.

  • Tenmat CavGuard Roll 65 (Intumescent Cavity Barrier) Tenmat CavGuard Roll 65 (Intumescent Cavity Barrier)
    by Tenmat

    TEN/CGR65

    Tenmat CavGuard Roll 65 (Intumescent Cavity Barrier)

    €60,95 EUR ex. GB VAT
    €9,67 per LM (linear metre)
    €8,06 per LM (linear metre)
    €60,95 EUR ex. GB VAT
    €9,67 per LM (linear metre)
    you save €-60,95
    €8,06 per LM (linear metre)
    €0,00 you save €-50,79
  • 85mm Mayplas Party Wall Timber Frame Cavity Barrier (MP551) (100x300mm) - per length
    PARTY WALL CAVITY BARRIER by Mayplas

    MAY/MP551PW-13

    85mm Mayplas Party Wall Timber Frame Cavity Barrier (MP551) (100x300mm) - per length

    € Looking for a price?

    Add to a quote for our best rate.

  • 50mm Mayplas Timber Frame Cavity Barrier TCB 551 (65x65mm) - per length | Insulation Merchant 50mm Mayplas Timber Frame Cavity Barrier TCB 551 (65x65mm) - per length | Insulation Merchant
    TCB CAVITY BARRIER by Mayplas

    MAY/TCB551-65

    50mm Mayplas Timber Frame Cavity Barrier TCB 551 (65x65mm) - per length

    € Looking for a price?

    Add to a quote for our best rate.

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

    MAY/MP551-115100/PK

    100mm Mayplas Timber Frame Cavity Barrier TCB 551 (115x100mm) - pack of 20

    € Looking for a price?

    Add to a quote for our best rate.

  • 150mm Mayplas Masonry Cavity Stop Sock MP552 | Insulation Merchant
    MASONRY CAVITY BARRIER by Mayplas

    MAY/MP552-165150

    150mm Mayplas Masonry Cavity Stop Sock MP552

    € Looking for a price?

    Add to a quote for our best rate.

  • 110mm Mayplas Masonry Cavity Stop Sock MP552 | Insulation Merchant
    MASONRY CAVITY BARRIER by Mayplas

    MAY/MP552-125110

    110mm Mayplas Masonry Cavity Stop Sock MP552

    €7,95 EUR ex. GB VAT
    €6,63 per LM (linear metre)
    €5,52 per LM (linear metre)
    €7,95 EUR ex. GB VAT
    €6,63 per LM (linear metre)
    you save €-7,95
    €5,52 per LM (linear metre)
    €0,00 you save €-6,63
  • 80mm Mayplas Masonry Cavity Stop Sock MP552
    MASONRY CAVITY BARRIER by Mayplas

    MAY/MP552-8095

    80mm Mayplas Masonry Cavity Stop Sock MP552

    €5,95 EUR ex. GB VAT
    €4,96 per LM (linear metre)
    €4,13 per LM (linear metre)
    €5,95 EUR ex. GB VAT
    €4,96 per LM (linear metre)
    you save €-5,95
    €4,13 per LM (linear metre)
    €0,00 you save €-4,96