Collection: Fireproof Insulation

Take a look at our range of fireproof insulation. Filter by Fire Resistance, DPC or choose from Rockwool, Knauf Earthwool, Kingspan, ARC or Magply. Need expert advice? Contact us by phone on 020 3582 6399, or Live Chat. To learn more about Fireproof insulation Read Our Guide.
Rockwool RWA45 (All Sizes)
Rockwool RWA45 (All Sizes) Floor Insulation
Vendor
Rockwool
Regular price
from £20.17 £24.20
Sale price
from £20.17 £24.20
Regular price
£0.00
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Rockwool Flexi-Slab - All Sizes
Rockwool Flexi-Slab - All Sizes Loft Insulation
Vendor
Rockwool
Regular price
from £32.08 £38.50
Sale price
from £32.08 £38.50
Regular price
£0.00
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Rockwool RW3 Acoustic, Thermal, and Fire Performance Insulation Slabs (All Sizes)
Rockwool RW3 Acoustic, Thermal, and Fire Performance Insulation Slabs (All Sizes) Cavity wall Insulation
Vendor
Rockwool
Regular price
from £396.03 £475.24
Sale price
from £396.03 £475.24
Regular price
£0.00
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Rockwool Twinroll 100mm Mineral Wool Insulation (6.60m2)
Rockwool Twinroll 100mm Mineral Wool Insulation (6.60m2) Loft Insulation
Vendor
Rockwool
Regular price
£57.64 £69.17
Sale price
£57.64 £69.17
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£0.00
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Rockwool Roll - 150mm x 1200mm x 3650mm
Rockwool Roll - All Sizes Loft Insulation
Vendor
Rockwool
Regular price
£66.35 £79.62
Sale price
£66.35 £79.62
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£0.00
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Rockwool RW5 (All Sizes)
Rockwool RW5 1200mm x 600mm (All Sizes) Cavity wall Insulation
Vendor
Rockwool
Regular price
from £582.91 £699.49
Sale price
from £582.91 £699.49
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£0.00
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Party Wall Cavity Stop Socks Red - All Sizes
Party Wall Cavity Stop Socks Red - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £49.09 £58.91
Sale price
from £49.09 £58.91
Regular price
£0.00
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Cavity Stop Sock Red - All Sizes
Cavity Stop Sock Red - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £66.52 £79.82
Sale price
from £66.52 £79.82
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£0.00
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Knauf RS45 (All Sizes) 600mm x 1200mm
Knauf Earthwool RS45 (600mm x 1200mm) - All Sizes Loft Insulation
Vendor
Knauf
Regular price
from £349.11 £418.93
Sale price
from £349.11 £418.93
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£0.00
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Knauf Rocksilk Flexible Slab (All Sizes) 1200mm x 600mm
Knauf Earthwool Flexible Slab 600mm x 1200mm - All Sizes All Insulation
Vendor
Knauf
Regular price
from £375.51 £450.61
Sale price
from £375.51 £450.61
Regular price
£0.00
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Knauf RS60 (600mm x 1200mm) - All Sizes
Knauf Earthwool RS60 (600mm x 1200mm) - All Sizes Loft Insulation
Vendor
Knauf
Regular price
from £359.64 £431.57
Sale price
from £359.64 £431.57
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£0.00
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Rockwool Full Fill Cavity Batts (All Sizes)
Rockwool Full Fill Cavity Batts (All Sizes) Cavity wall Insulation
Vendor
Rockwool
Regular price
from £501.25 £601.50
Sale price
from £501.25 £601.50
Regular price
£0.00
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Timber Cavity Barrier (TCB) Red - All Sizes
Timber Cavity Barrier (TCB) Red - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £70.23 £84.28
Sale price
from £70.23 £84.28
Regular price
£0.00
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SuperCLOSE XPS Insulated Cavity Closer (20mm - 2.4m) - All Sizes
SuperCLOSE XPS Insulated Cavity Closer (20mm - 2.4m) - All Sizes Cavity wall Insulation
Vendor
Superfoil
Regular price
from £69.33 £83.20
Sale price
from £69.33 £83.20
Regular price
£0.00
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Cavity Stop Sock Lt Blue - All Sizes
Cavity Stop Sock Lt Blue - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £58.94 £70.73
Sale price
from £58.94 £70.73
Regular price
£0.00
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Rockwool Cladding Roll - All Sizes
Rockwool Cladding Roll - All Sizes Cavity wall Insulation
Vendor
Rockwool
Regular price
from £0.00 £0.00
Sale price
from £0.00 £0.00
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£0.00
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Fire Stop Strip - All Sizes
Fire Stop Strip - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £59.86 £71.83
Sale price
from £59.86 £71.83
Regular price
£0.00
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Contract-Closer - All Sizes
Contract-Closer - All Sizes Cavity Closers
Vendor
ARC
Regular price
from £79.92 £95.90
Sale price
from £79.92 £95.90
Regular price
£0.00
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Cavity Stop Sock Green - All Sizes
Cavity Stop Sock Green - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £58.26 £69.91
Sale price
from £58.26 £69.91
Regular price
£0.00
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Thermo-Loc FRSTOP 60 min Fire-Rated Cavity Stop Sock - All Sizes
Thermo-Loc FRSTOP 60 min Fire-Rated 50mm Cavity Stop Sock - All Sizes
Vendor
Timloc
Regular price
from £7.86 £9.43
Sale price
from £7.86 £9.43
Regular price
£0.00
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Contract-Closer Single Flange - All Sizes
Contract-Closer Single Flange - All Sizes Cavity Closers
Vendor
ARC
Regular price
£0.00 £0.00
Sale price
£0.00 £0.00
Regular price
£0.00
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T-Barrier Pitched Roof - All Sizes
T-Barrier Pitched Roof - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £58.73 £70.48
Sale price
from £58.73 £70.48
Regular price
£0.00
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Smart-Closer Plus - All Sizes
Smart-Closer Plus - All Sizes Cavity Closers
Vendor
ARC
Regular price
from £79.85 £95.82
Sale price
from £79.85 £95.82
Regular price
£0.00
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Rockfibre Insulated DPC - All Sizes
Rockfibre Insulated DPC - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £289.43 £347.32
Sale price
from £289.43 £347.32
Regular price
£0.00
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T-Barrier Masonry (vertical) - All Sizes
T-Barrier Masonry (vertical) - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £71.54 £85.85
Sale price
from £71.54 £85.85
Regular price
£0.00
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Timber Cavity Barrier (TCB) Yellow 120mm x 1200mm - All Sizes
Timber Cavity Barrier (TCB) Yellow 120mm x 1200mm - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £62.73 £75.28
Sale price
from £62.73 £75.28
Regular price
£0.00
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per 
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Knauf RS100 (600mm x 1200mm) - All Sizes
Knauf Earthwool RS100 (600mm x 1200mm) - All Sizes Loft Insulation
Vendor
Knauf
Regular price
from £534.16 £640.99
Sale price
from £534.16 £640.99
Regular price
£0.00
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Kingspan Kooltherm Cavity Closers - All Sizes
Kingspan Kooltherm Cavity Closers - All Sizes All Insulation
Vendor
Kingspan
Regular price
from £0.00 £0.00
Sale price
from £0.00 £0.00
Regular price
£0.00
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Insulated DPC - All Sizes
Insulated DPC - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £225.29 £270.35
Sale price
from £225.29 £270.35
Regular price
£0.00
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per 
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Eco-Closer - All Sizes
Eco-Closer - All Sizes Cavity Closers
Vendor
ARC
Regular price
from £104.56 £125.47
Sale price
from £104.56 £125.47
Regular price
£0.00
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Smart-Closer - All Sizes
Smart-Closer - All Sizes Cavity Closers
Vendor
ARC
Regular price
from £62.85 £75.42
Sale price
from £62.85 £75.42
Regular price
£0.00
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Party Wall DPC Vertical - All Sizes
Party Wall DPC Vertical 250mm x 1200mm - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £52.47 £62.96
Sale price
from £52.47 £62.96
Regular price
£0.00
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Timber to Timber Cavity Barrier Yellow 150mm x 1200mm - All Sizes
Timber to Timber Cavity Barrier Yellow 150mm x 1200mm - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £75.70 £90.84
Sale price
from £75.70 £90.84
Regular price
£0.00
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per 
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Timber Cavity Barrier (TCB) Orange - All Sizes
Timber Cavity Barrier (TCB) Orange 120mm x 1200mm - All Sizes Fireproof Insulation
Vendor
ARC
Regular price
from £65.75 £78.90
Sale price
from £65.75 £78.90
Regular price
£0.00
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per 
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Magply Panels - All Sizes
Magply Panels - All Sizes Magply
Vendor
Magply
Regular price
from £14.85 £17.82
Sale price
from £14.85 £17.82
Regular price
£0.00
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Speedline PVCU Ext. XPS. Cavity Closer, 100mm x 2.4m Single Ext (Pack of 10)
Speedline PVCU Ext. XPS. Cavity Closer, 100mm x 2.4m Single Ext Cavity Closers
Vendor
Speedline
Regular price
£83.30 £99.96
Sale price
£83.30 £99.96
Regular price
£0.00
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Thermo-Loc 60 min Fire-Rated Check Reveal Cavity Closer 2.4m - All Sizes
Thermo-Loc 60 min Fire-Rated Check Reveal Cavity Closer 2.4m - All Sizes
Vendor
Timloc
Regular price
from £90.50 £108.60
Sale price
from £90.50 £108.60
Regular price
£0.00
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per 
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Thermo-Loc 60 min Fire-Rated Cavity Closer 2.4m - All Sizes
Thermo-Loc 60 min Fire-Rated Cavity Closer 2.4m - All Sizes
Vendor
Timloc
Regular price
from £79.40 £95.28
Sale price
from £79.40 £95.28
Regular price
£0.00
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per 
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Thermo-Loc 30 min Fire-Rated Cavity Closer 2.4m - All Sizes
Thermo-Loc 30 min Fire-Rated Cavity Closer 2.4m - All Sizes
Vendor
Timloc
Regular price
from £79.50 £95.40
Sale price
from £79.50 £95.40
Regular price
£0.00
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per 
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Thermo-Loc Platinum Plus Check Reveal Multi Cavity Closer 2.4m (Pack of 10)
Thermo-Loc Platinum Plus Check Reveal Multi Cavity Closer 2.4m - Pack of 10
Vendor
Timloc
Regular price
£119.00 £142.80
Sale price
£119.00 £142.80
Regular price
£0.00
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per 
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Thermo-Loc Platinum Plus Multi Cavity Closer 2.4m (Pack of 10)
Thermo-Loc Platinum Plus Multi Cavity Closer 2.4m - Pack of 10
Vendor
Timloc
Regular price
£99.40 £119.28
Sale price
£99.40 £119.28
Regular price
£0.00
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Thermo-Loc Platinum Plus Cavity Closer 2.4m - All Sizes
Thermo-Loc Platinum Plus Cavity Closer 2.4m - All Sizes
Vendor
Timloc
Regular price
from £76.80 £92.16
Sale price
from £76.80 £92.16
Regular price
£0.00
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per 
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Thermo-Loc Platinum Plus FX Check Reveal Multi Cavity Closer 2.4m (Pack of 10)
Thermo-Loc Platinum Plus FX Check Reveal  Multi Cavity Closer 2.4m - Pack of 10
Vendor
Timloc
Regular price
£126.00 £151.20
Sale price
£126.00 £151.20
Regular price
£0.00
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Thermo-Loc Platinum Plus FX Check Reveal Cavity Closer 2.4m - All Sizes
Thermo-Loc Platinum Plus FX Check Reveal Cavity Closer 2.4m - All Sizes
Vendor
Timloc
Regular price
from £99.40 £119.28
Sale price
from £99.40 £119.28
Regular price
£0.00
Unit price
per 
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Thermo-Loc Platinum Plus FX 50mm - 100mm Multi Cavity Closer 2.4m (Pack of 10)
Thermo-Loc Platinum Plus FX 50mm - 100mm Multi Cavity Closer 1.4m - Pack of 10
Vendor
Timloc
Regular price
£105.00 £126.00
Sale price
£105.00 £126.00
Regular price
£0.00
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per 
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Thermo-Loc Platinum Plus FX Cavity Closer 2.4m - All Sizes
Thermo-Loc Platinum Plus FX Cavity Closer 2.4m - All Sizes
Vendor
Timloc
Regular price
from £82.80 £99.36
Sale price
from £82.80 £99.36
Regular price
£0.00
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per 
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Thermo-Loc Platinum Multi Cavity Closer 2.4m - All Sizes
Thermo-Loc Platinum Multi Cavity Closer 2.4m - All Sizes
Vendor
Timloc
Regular price
from £83.80 £100.56
Sale price
from £83.80 £100.56
Regular price
£0.00
Unit price
per 
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Thermo-Loc FRSTOP 60 min Fire-Rated Timber Frame Cavity Stop Sock 1.2m - All Sizes
Thermo-Loc FRSTOP 60 min Fire-Rated Timber Frame Cavity Stop Sock 1.2m - All Sizes
Vendor
Timloc
Regular price
from £8.02 £9.62
Sale price
from £8.02 £9.62
Regular price
£0.00
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What is fire resistant insulation or fireproof insulation?

Specially designed insulation which offers protection against flames and withstand heat is known as fire resistant insulation or fire proof insulation material. Fire-resistant insulation material slows the spread of fire and protects the building. Fireproofing is more and more common choice of people nowadays for insulating commercial, domestic and industrial buildings. Fire-resistant insulation material is specially designed to resist high temperature and ensure no toxic smoke is released if it does encounter flames.

These materials slow down the spread of flame and protect the structure of building providing enough time for people to escape the property in case of fire.

 

Rating of fire resistance insulation

Fire rated insulation materials are classified in various ratings as follows

  • A1- non-combustible
  • A2- limited combustible
  • B-F - Low- high contribution to fire

The ‘S’ part relates to total ‘Smoke propagation’, in the first ten minutes of exposure to flames.

There is the point of determining a ‘smoke’ index:

  • S1 = a little or no smoke
  • S2 = quite a lot of smoke
  • S3 = significant smoke

The ‘D’ part relates to ‘Flaming droplets’ during the first ten minutes of exposure to flame. 
The indicator to determine flaming droplet is:

  • D0 = no flaming droplets
  • D1 = some or few flaming droplets
  • D2 = quite a lot of flaming droplets
Fire rating of insulation

 

Types of fire-rated insulation materials

  • Mineral wool - fibreglass insulation

Mineral wool is also known as stone wool or rock wool and is an ideal material because it is non-combustible and does not conduct heat at all. This material can resist temperatures above 1000 degree Celsius.

Fiberglass insulation have natural heat resistant properties making it an ideal material to use in high-temperature areas. Fiberglass does not burn but it may melt in temperature exceeding 100 degree Celsius. Fibreglass slabs and fireproof insulation rolls have a class A1 fire rating and are non-combustible.

  • Foil & Multifoil insulation

Foil and multifoil insulation materials have excellent fire rating for fire propagation and spread of flame. They are specially designed and tested to the highest standards and is fully certified to use in the United Kingdom.

  • Insulated Boards

Fire Resistant plasterboards utilise various fire retardant additives and a high-density core to enhance their fireproof qualities. Fireboard or Fire-resistant plasterboard offers better protection against fire when it is compared to other plasterboards. In high fire hazard areas, it is advised by the governing bodies to use Fire insulation boards or fireproof insulation sheets. Fire performance of the house is based on complete systems such as a partition, wall, ceiling membrane or floor, therefore insulated plasterboard cannot be considered on their own in terms of fire protection. Celotex 100mm has rated class 1 in surface spread of fire and rated E in reaction to fire.

  • Expanding foam

Fire-rated expanding foam can provide up to 240 minutes of fire rating and is used as an efficient seal against gas and smoke. Expanding spray foam insulation has grown fast as one of the most popular options over time because of its cost-effectiveness. They comply will all relevant building regulations and can be used on commercial, residential and industrial properties.

  • Passive fire protection

This term refers to cavity fire barrier, cavity stop sock such as arc cavity stop. These products are used to bridge gaps between wall cavities. Under the action of the heat they expand and insulate wall sections to reduce the spread of smoke. 

 

Benefits of fireproof insulation material

  • Fire protection
  • Non-combustible
  • No Toxic smoke
  • Lightweight
  • Cost-effective
  • Easy and quick install
  • Provide thermal insulation
  • Acoustic performance

Fire safety and building regulation

Building regulations specify a set of rules and regulations when it comes to fire safety. They have specified rules for detached houses and even stricter rules for terraced houses. Fire Safety Approved Document B building regulation in England covers fire safety matters within and around buildings. Building regulation have stated various precautionary measures which are to be followed when building a new house. Some of the most commons ones are listed below:

  • Providing escape routes
  • Preventing or restricting the spread of fire from
  1. To or from neighbouring house
  2. Inside the house
  • Providing access route for fire brigade
fire safety

 

Places where you can use fire rated insulation

Heat resistant products

 

Up to 99 per cent of product manufactured in the UK are in compliance with strict building regulations, only the relevant authority has the power to edit those. Whether ones buys pvc, tape, a pack of slab or loft roll insulation. Of course it is sometimes difficult to compare performances when so many options and factors (such as proper storage) are on the table. 

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