HardRock® Multi-Fix (DD) Tapered
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ROCKWOOL Technical datasheet HardRock Multi-Fix (DD) Tapered Version 2.00 January 2024 Suitable for flat roofs, HardRock Multi-Fix (DD) Tapered is a noncombustible and BBA-approved insulation board, fabricated to a fall for effective management of rainwater. The product is backed by a complete design to delivery service. HardRock® Multi-Fix (DD) Tapered Non-combustible tapered insulation for flat roofs ROCKWOOL HardRock Multi-Fix (DD) Tapered is a stone wool insulation board faced with a mineral-coated white fleece. The product is engineered to a fall for effective rain water management. Manufactured from volcanic stone, HardRock Multi-Fix (DD) Tapered achieves Euroclass A2-s1, d0 (non-combustible). • BBA-approved • Non-combustible Euroclass A2-s1, d0 • Bespoke design and thermal calculation service • Precision manufacture and supply to order • Compatible with most weatherproofing systems • Excellent sound reduction and absorption • Dimensionally stable • Suitable for new build and refurbishment

HardRock Multi-Fix (DD) Tapered APPLICATIONS HardRock Multi-Fix (DD) Tapered is fully compatible for use with the following roofing systems:* • Fully bonded, partially bonded, mechanically fastened single ply membrane systems, and EPDM membrane systems Torch applied, bitumen based, and mastic asphalt built up systems Liquid applied systems *BBA approval subject to use with a waterproofing membrane that has a current BBA Agrément Certificate. For more information please see Agrément Certificate 21/5878. For more information visit rockwool.com/uk

HardRock Multi-Fix (DD) Tapered PERFORMANCE Fire performance HardRock Multi-Fix (DD) Tapered achieves Euroclass A2-s1, d0 (non-combustible). Flat roof constructions featuring HardRock Multi-Fix (DD) have attained a rating of “Grade EXT-A”, the highest possible classification under LPS 1181: Part 1, by successfully passing both the LPS1181 Part 1 ‘reaction to fire’ and LPS1208 ‘resistance to fire’ tests. In addition, a fire resistance performance of up to 120 minutes (integrity and insulation) to BS 476-21 can be achieved. HardRock Multi-Fix (DD) Tapered is covered by the above approvals...

HardRock Multi-Fix (DD) Tapered INSTALLATION MITRE DETAILS Preparation work for refurbishment To form hips and valleys, cut and discard the shaded sections of insulation as shown below. Unless the existing roof finish is known to be sound and watertight, and the type and condition of the surface suitable for bonding or mechanical fixing of HardRock Multi-Fix (DD) Tapered, all previously applied finishes and, if necessary, insulation layers should first of all be removed. It is recommended that the specifier/ contractor checks the existing levels to ensure that the falls are correct. Where...

LEGAL NOTICES General safety requirements - Building Safety Act 2022 ROCKWOOL Limited is committed to supporting specifiers, resellers and users of ROCKWOOL products for the full life cycle of the product to comply with the obligations and responsibilities set out in the Building Safety Act 2022. With regard to the general safety requirements of the Act, ROCKWOOL Limited cannot control or foresee every situation where its products might be used. We therefore strongly advise that specifiers, resellers and users contact us where use of ROCKWOOL products is contemplated in applications...

HardRock Multi-Fix (DD) Tapered ROCKWOOL stone wool safe to install and live alongside There are no hazardous classifications associated with stone wool insulation manufactured by ROCKWOOL-UK according to EU REACH and UK REACH regulations on health and the environment. ROCKWOOL safe use instruction sheets and material safety data sheets (where applicable) can be downloaded here. Sustainability ROCKWOOL products are used to enrich modern living, creating safer, healthier and more climateresilient communities. We transform abundant, natural volcanic rock into stone wool insulation products...