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HARDROCK® MULTI-FIX SOLUTION
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Catalog excerpts

HARDROCK® MULTI-FIX SOLUTION - 1

Flat Roofing Solutions Rockwool HARDROCK® Multi-Fix Dual Density roofing boards provide unique tested solutions for fire, thermal and acoustic roofing systems for all building types.

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HARDROCK® MULTI-FIX SOLUTION - 2

ROCKWOOL HARDROCK® Multi-Fix Dual Density boards are manufactured from renewable volcanic stone which produces a non-combustible roofing insulation board. 4 benefits beyond thermal Unmatched fire resistance Superior acoustics Excellent airborne, sound absorption & impact reduction performance Unrivalled durability Sustainable materials Euroclass A1 - non-combustible insulation Long term stable thermal performance ROCKWOOL insulation is 97% recyclable

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HARDROCK® MULTI-FIX SOLUTION - 3

ROCKWOOL HARDROCK® Multi-Fix (DD) flat roofing solutions Advantages A uniquely versatile solution suitable for all roof covering types - torch, pour and roll, single ply, EPDM, liquid applied and green roofs - new-build and refurbishment. The product presents no smoke hazard, and will not contribute to fire growth in any stages of a fire (including the fully developed stage of a fire) The product is deemed to be non-combustible in accordance with UK building regulations complying with Zurich School and Academy Design guide and HTM05-03 guidance for healthcare LPCB approved to highest...

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HARDROCK® MULTI-FIX SOLUTION - 4

Hardrock® Multi-Fix (DD) roofing boards Product performance Thermal performance The thermal conductivity of Hardrock® Multi-Fix roofing boards is 0.039 W/mK (λ 90:90). Resistance to moisture Rockwool products consist of randomly orientated water repellent fibres that prevents moisture from working its way into the board. Should any boards become wet during installation they should be allowed to dry out naturally, prior to applying the roof membrane. Dimensional stability Hardrock® Multi-Fix (DD) roofing boards are dimensionally stable when tested to EN 1604 and therefore do not exert any...

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HARDROCK® MULTI-FIX SOLUTION - 5

Superior Acoustics ROCKWOOL has a unique in-house design capability to provide bespoke project specific rain noise calculations and can support with a comprehensive suite of absorption and sound attenuation test data. The service will support cost effective project design and help meet the Education acoustic requirements, BB93. Sound absorption Reflected sound is often a problem experienced in most buildings, for example Schools Airport terminals Retail centres Manufacturing facilities The use of Rockwool Acoustic Infills in conjunction with Hardrock® Multi-Fix (DD) roofing boards improves...

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HARDROCK® MULTI-FIX SOLUTION - 6

HARDROCK® Multi-Fix (DD) solutions Single ply/EPDM roofing - Systems Example 1 - Single layer system (Partial/fully bonded or mechanically fixed) System performance information 1 Single ply/EPDM membrane 2 150mm or 185mm Hardrock® Multi-Fix (DD) 3 Vapour control layer 4 Standard metal deck Acoustic performance 1: Rw 35dB/52dB LiA rain impact noise* (Rw figure excludes suspended ceilings) Example room types & usage: Primary/Secondary school classrooms (BB93) Acoustic performance 2: (with acoustic membrane 5kg) Rw 38dB/52dB LiA rain impact noise* (Rw figure excludes suspended ceilings)...

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HARDROCK® MULTI-FIX SOLUTION - 7

HARDROCK® Multi-Fix (DD) solutions Single ply/EPDM system - Fixing options Mechanically fastened single ply/EPDM membrane systems Fully/partially adhered single ply/EPDM membrane systems Hardrock® Multi-Fix (DD) roofing boards are suitable for mechanically fastened single ply/EPDM systems. Hardrock® Multi-Fix (DD) roofing boards are to be used with fully or partially adhered single ply/EPDM membranes. The fleece facing of the board encourages a strong bond between membrane and insulation whilst limiting the amount of adhesive needed. A single ply/EPDM membrane which has been tested and...

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HARDROCK® MULTI-FIX SOLUTION - 8

HARDROCK® Multi-Fix (DD) solutions Bitumen/mastic asphalt/green roof - Systems Example 1 - Single layer system (mechanically fixed/torched or bonded bitumen) System performance information 1 High performance roofing felt/mastic asphalt 2 150mm Hardrock® Multi-Fix (DD) Acoustic performance 1: Rw 35dB/ 52dB LiA rain impact noise* (Rw figure excludes suspended ceilings) Example room types & usage: Primary/Secondary school classrooms (BB93) Acoustic performance 2: (with acoustic membrane 5kg) Rw 38dB /52dB LiA rain impact noise* (Rw figure excludes suspended ceilings) Example room types &...

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HARDROCK® MULTI-FIX SOLUTION - 9

Hardrock® Multi-Fix (DD) solutions Bitumen/Mastic asphalt/Green roof/Liquid membrane - Fixing options Built-up high performance bituminous membranes Liquid applied Cold liquid applied membranes offer a seamless watertight finish and are ideal for roof refurbishment, roof details and roof repairs. Hardrock® Multi-Fix (DD) boards can be used below built-up bitumen roofing (bituminous felt or asphalt). Roof board installation For dual layered systems place the 150mm MultiFix base board down first and add the fleece faced Multi-Fix top board with the fleece facing upwards to receive the...

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HARDROCK® MULTI-FIX SOLUTION - 10

Hardrock® Multi-Fix (DD) Tapered Roofing System The HARDROCK® Multi-Fix (DD) Tapered Roofing range is engineered to meet the demand for tapered solutions for existing and new flat roof constructions. The system reduces risk of ponding and standing water and is backed by a complete design to delivery service. Tapered HARDROCK® Multi-Fix (DD) Roofing boards are manufactured 1200x1000mm and can be fully bonded to the vapour control layer with hot bitumen or adhesive or mechanically fastened through the vapour control layer to the deck. Thermal performance – U-values It is a Building Regulation...

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HARDROCK® MULTI-FIX SOLUTION - 11

HARDROCK® Multi-Fix (DD) Acoustic System Ancillaries ROCKWOOL Acoustic Infills The ROCKWOOL Acoustic Infill consists of trapezoidal shaped ROCKWOOL insulation, which is engineered to suit specified perforated metal roof decking. The combination of optimised density, fibre direction and excellent fit provides a significant improvement in sound absorption when used together with HARDROCK® Multi-Fix (DD) roofing boards on perforated metal roof decking constructions. Features Excellent acoustic absorption - Class C sound absorption performance Pre-cut to suit specific roof deck types for fast...

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