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Rockwool mineral wool slabs, batts and rolls

Rockwool Fire Barrier & Fire-Pro Systems

Standard Rockwool Product. Plain Fire Barrier 50mm and Fire Barrier50mm with foil both sides plus supporting components, generally readily available

Product Applications

Rockwool Fire Barrier Systems - prevent fire and inhibit smoke spread within roof and ceiling voids.

The products are quick and easy to fit and also have thermal insulation and acoustic properties. The system consists of vertically hung Fire Barrier Curtains that are fixed top and bottom with Clamping plate

Product Characteristics

Rockwool Fire Barrier Systems - prevent fire and inhibit smoke spread within roof and ceiling voids. The products are quick and easy to fit and also have thermal insulation and acoustic properties. Rockwool FirePro  and Fire Barrier systems can be used under extreme conditions. They retain their fire resistant properties in  very high temperatures.

The system consists of vertically hung Fire Barrier Curtains and the friction fitted Fire Barrier Slabs measuring 1000mm x 600mm x 100mm. Extended drops can be protected using the fire barrier curtain as the system maintains its performance in voids up to 10.5m high.

The Rockwool Fire Barrier Curtain has a 25mm galvanised wire mesh stitched with wire to one face as standard. Rockwool Fire Barrier Slabs have a factory applied foil finish to both faces as standard.

By protecting the structural frame of the building from destruction by fire, it is possible to give occupants more time to escape, and to limit the damage to the building.

Stone wool offers ‘best-in-class’ fire protection

UK Timber Frame Association (UKTFA) guidance shows stone wool offers ‘best-in-class’ fire protection for timber frame projects.

A new classification system for insulation products, launched by the UKTFA and backed by the Health & Safety Executive, has identified Stone Wool as the only insulation product to achieve its highest ‘Type 3’ rating.

The system uses independent test results included as part of the UKTFA guidance ‘Design Guide to Separating Distances During Construction’ which has been created to help building designers to mitigate the potential for fire spread between buildings during the building phase of timber frame project

The Rockwool Fire Barrier System

The vertically hung Fire Barriers are capable of achieving both integrity and insulation protection periods from 15 to 120 minutes. It is Rockwool’s essential insulation performance that limits the heat transfer through the barriers, preventing ignition of combustible materials in adjacent areas.

The ‘Quick Fit’ support system is patented (grant number is GB2393119B) and offers a quick, cost effective installation method for the Fire Barriers for periods of up to 60 minutes. This focus on ease of construction and installation has the added benefit of reducing the risks of installation errors.

Ninety and 120 minute systems are also available using the traditional support methods (see section on 1½ and 2 hour barriers for typical specification).

Extended drops are easily catered for, with the system capable of maintaining its performance in void heights up to 10.5 metres


Product Properties

Fitting a clamping plate and braket at top and bottom levels

Rockwool Plain Fire Barrier

Rockwool Plain Fire Barrier, 50mm x 1000m x 4 meters = 4.00m2

Rockwool Fire Barrier Foil

Rockwool Fire Barrier Foil, (single faces) 50mm x 1000m x 4 meters = 4.00m2

Rockwool Fire Barrier Foil, (both faces) 50mm x 1000m x 4 meters = 4.00m2

Rockwool Easyfit Fire Barrier Angle Clamping Bracket

Rockwool Easyfit Fire Barrier Angle, 34mm x 75mm x 3 meters

Rockwool Insulation Easyfit Fire Barrier Clamping Plate

Rockwool Easyfit Fire Barrier Plate, 40mm x 3 meters


Product Advantages

  • Rockwool fire resistance demonstration with blow torchFire Barrier Systems are used to inhibit the spread of flames, heat and smoke through concealed spaces such as roofs and ceiling voids. The products also provide thermal and acoustic insulation.

    • A1 reaction to fire classification BS EN 13501:1
    • Fire Barrier Curtains maintain integrity and insulation protection for 15 to 120 minutes.
    • Fire Barrier Slabs insulate for up to 60 minutes and maintain integrity for up to 240 minutes.
    • Easy fix system available.
    • Fast installation
    • A combined acoustic and fire stopping solution

    Fixing solutions to concrete decks

    • Fast new patented angle and clamping plate system
    • Simple hammer fix system
    • Angle support with stamped tongues
    • One angle supports two barriers for an hour

    Fixing solutions for timber and steel or voids up to 1m

    • Standard no. 10 wood screws for timber
    • Self-tapping screws for steel purlins
    • Fixings for clamping plate extended to 450mm

    Fixing solutions to concrete decks

    • Fast new patented angle and clamping plate system
    • No nuts and bolts to fasten
    • Simple hammer fix fixing system
    • Simple angle support with stamped tongues
    • One angle supports 2 barriers for 1 hour
    • Fixing solutions to timber and steel
    • No bolts required
    • Standard no. 10 wood screws for timber
    • Self tapping screws for steel purlins
    • Fixings for clamping plate extended to 450mm
    • Speed of installation increased
    • Costs of installation reduced

    Firestopping solutions for voids up to one metre using Fire Barrier Slab

    • Simple butt joint foil faced slab
    • No fasteners or angles
    • Cost of installation reduced
    • Only 40mm intumescent sealant coat back to penetrations

  • Drop-down price list / Add to shopping basket

    Click to Buy: Rockwool Fire Barrier - Unfaced and Foil Faced Rolls and System Components - Half-hor Fire Barrier


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    Common product, generally held by all depots Rockwool Plain Fire Barrier 50mm, 1x4m = 4m² - ranging from £11.94 to £12.49 per m²

    1 plus rolls @ £12.49 per m² = £49.95 (£59.94 inc-VAT) per roll
    3 plus rolls @ £12.38 per m² = £49.51 (£59.41 inc-VAT) per roll
    6 plus rolls @ £12.27 per m² = £49.07 (£58.88 inc-VAT) per roll
    9 plus rolls @ £12.16 per m² = £48.62 (£58.34 inc-VAT) per roll
    12 plus rolls @ £12.05 per m² = £48.18 (£57.82 inc-VAT) per roll
    15 plus rolls @ £11.94 per m² = £47.74 (£57.29 inc-VAT) per roll

    Rarely requested product sourced directly from manufacturer. Rockwool Fire Barrier - foil on one face 50mm, 1x4m = 4m² - ranging from £18.76 to £19.63 per m²

    1 plus rolls @ £19.63 per m² = £78.52 (£94.22 inc-VAT) per roll
    4 plus rolls @ £19.46 per m² = £77.82 (£93.38 inc-VAT) per roll
    8 plus rolls @ £19.28 per m² = £77.13 (£92.56 inc-VAT) per roll
    11 plus rolls @ £19.11 per m² = £76.43 (£91.72 inc-VAT) per roll
    15 plus rolls @ £18.94 per m² = £75.74 (£90.89 inc-VAT) per roll
    19 plus rolls @ £18.76 per m² = £75.04 (£90.05 inc-VAT) per roll

    Common product, generally held by all depots Rockwool Fire Barrier - foil on both faces 50mm, 1x4m = 4m² - ranging from £18.97 to £19.85 per m²

    1 plus rolls @ £19.85 per m² = £79.38 (£95.26 inc-VAT) per roll
    4 plus rolls @ £19.67 per m² = £78.67 (£94.40 inc-VAT) per roll
    8 plus rolls @ £19.49 per m² = £77.97 (£93.56 inc-VAT) per roll
    11 plus rolls @ £19.32 per m² = £77.27 (£92.72 inc-VAT) per roll
    15 plus rolls @ £19.14 per m² = £76.57 (£91.88 inc-VAT) per roll
    19 plus rolls @ £18.97 per m² = £75.86 (£91.03 inc-VAT) per roll

    Common product, generally held by all depots Rockwool Easyfit Fire Barrier Angle, length = 3lm - ranging from £5.74 to £6.00 per lm

    1 plus lengths @ £6.00 per lm = £18.01 (£21.61 inc-VAT) per length
    16 plus lengths @ £5.95 per lm = £17.85 (£21.42 inc-VAT) per length
    31 plus lengths @ £5.90 per lm = £17.69 (£21.23 inc-VAT) per length
    47 plus lengths @ £5.84 per lm = £17.53 (£21.04 inc-VAT) per length
    63 plus lengths @ £5.79 per lm = £17.37 (£20.84 inc-VAT) per length
    79 plus lengths @ £5.74 per lm = £17.21 (£20.65 inc-VAT) per length

    Common product, generally held by all depots Rockwool Easyfit Fire Barrier Clamping Plate, length = 3lm - ranging from £3.21 to £3.36 per lm

    1 plus lengths @ £3.36 per lm = £10.07 (£12.08 inc-VAT) per length
    28 plus lengths @ £3.33 per lm = £9.98 (£11.98 inc-VAT) per length
    56 plus lengths @ £3.30 per lm = £9.90 (£11.88 inc-VAT) per length
    84 plus lengths @ £3.27 per lm = £9.81 (£11.77 inc-VAT) per length
    113 plus lengths @ £3.24 per lm = £9.72 (£11.66 inc-VAT) per length
    142 plus lengths @ £3.21 per lm = £9.63 (£11.56 inc-VAT) per length

    Price and Availability Information

    Presently there are no availability restrictions, apart from manufacturing lead-times and minimum quantity order levels on certain product sizes.
    Please observe the 'Star Rating' indicators to assess availability.

    Excellent = Product Availability Excellent Good = Product Availability Good Fair = Product Availability Fair Poor =  Product Availability Poor Undetermined = Product Availability Undetermined
    Product availability depends upon stock levels at closest depot and delivery logistics to geographic locations


    Product Information and Certification

    Links to manufacturer's information. Click to download in a separate browser window.


    Installing Rockwool Flexi

    Fire Barrier installationFire barrier systems from Rockwool are designed to be easily and quickly installed, and are designed to prevent fire and smoke spread within roof and ceiling voids

    Fire Stopping - Large voids - ½ hour Cavity Barrier

    Rockwool Fire Barrier solution is applied as a hanging curtain. The barrier is continuously supported and secured to the soffit at its head. At the base it is preferable in a cavity barrier situation to wire the barrier to the ceiling grid although it is acceptable to let it drape freely, turned back across the ceiling.

    If the Fire Barrier is to form a continuation within a void of a fire resistant wall/partition, it is essential to fix the barrier to the wall/partition head to maintain integrity.

    Fixing to timber

    Fire Barrier can be applied to a timber truss construction as a half hour cavity barrier within the roof space to satisfy the requirements of Building Regulation B3 – (4).

    If the truss is constructed from a minimum timber size of 35 to 49mm thick, both sides of all truss members/bracing require protection from fire in order to minimise charring. Strips of 50mm Fire Barrier is used on the reverse side of the truss for this purpose.

    Alternatively, a second layer of Fire Barrier may be applied to provide 1 hour fire rating.

    Nail plate fixings may fail prematurely in fire unless protected .

    For fixing to timber, the Rockwool clamping plate is used, compressing the barrier to the timber, fixed at 450mm centres using No. 10 woodscrews.

    Rockwool angle support clamping plate system

    To use the patented Rockwool angle support system, bend tongues out to 90° and impale barrier onto them. The slotted clamping plate is then fitted by pushing the tongues through the slots and these are then bent over the face of the clamping plate completing the process.

    Fixing to concrete soffits

    For fixing to concrete soffits, the pre-punched angle support is fixed using Hilti DBZ or Ejot ECL 35 hammer set anchors at max. 750mm centres.

    Fixing to steel purlins

    For fixing to steel purlins, use Hilti SMD 02Z (5.5 × 70mm) self-tapping screws at max. 450mm centres.

    60-30 Fire Barrier

    If 30 minutes insulation is required, use 1 layer of 60mm foil faced fire barrier with 100mm vertical over lapped joints. The barrier is otherwise fixed as previously shown for timber construction.

    Fire Stopping - Large voids - One hour Cavity Barrier

    Rockwool Fire Barrier solution is applied as a hanging curtain. The barrier is continuously supported and secured to the soffit at its head. At the base it is essential to fix the barrier to the wall/partition head to maintain integrity.

    The Rockwool support angle has tongues that are pushed out from opposite sides at 300mm max. centres.

    Two 50mm Rockwool Fire Barriers with staggered joints are then impaled on the tongues on both sides and clamped using the Rockwool clamping plates. The tongues are finally bent over the clamping plates, completing the system.

    Note that wire reinforced sides should be placed outwards.

    Fixing to timber

    When a one hour Fire Barrier is supported on structural timber (for example a trussed rafter), and the thickness of timber is 35–49mm, one layer of 60mm Rockwool Fire Barrier must be placed on each side of the timber. Where timber thickness is 50mm or greater, 2 layers of 50mm Fire Barrier are sufficient.

    Fixing to concrete soffits

    For fixing to concrete soffits, the pre-punched angle support is fixed using Hilti DBZ or Ejot ECL 35 hammer set anchors at max. 750mm centres.


    Manufacturer's Contact Details

    Rockwool Insulation Limited

    Pencoed Bridgend CF35 6NY United Kingdom

    Rockwool Customer Service

    Telephone: +44 (0) 1656 868400
    Email: technical.solutions@rockwool.co.uk
    Web site: Rockwool Home Page

    Our Contact Details

    www.just-insulation.com

    27 Massetts Road, Horley, Surrey, RH6 7DQ

    Telephone: 0333 9000 989

    Facsimile: 0333 7000 797

    Email: enquiries@just-insulation.com

    Web presence: just-insulation.com