HARDROCK® Multi-Fix (DD)
ROCKWOOL HARDROCK Multi-Fix (DD) is a stone wool insulation board faced with a mineral-coated white fleece, compatible with a wide range of adhered and mechanically-fixed waterproofing systems - including bitumen, single-ply, EPDM and liquid membranes, as well as green roof systems.
As demonstrated by independent in-situ laboratory testing, not only does HARDROCK Multi-Fix (DD) significantly reduce the transfer of airborne noise - it also works to absorb vibration and noise caused by direct impacts, such as the drumming effect of heavy rain.
To control reverberant noise beneath the roof, combine HARDROCK(R) with a perforated deck inlaid with ROCKWOOL Acoustic Infills.
HARDROCK Multi-Fix (DD) is manufactured from volcanic stone, which produces a non-combustible Euroclass A2-s1, d0 insulation board. The product has also been fire tested to BS EN 1365-2* as part of a weight-loaded steel deck flat roof system to provide two hours' integrity and insulation performance.
- BBA approved (21/5878)
- LPCB approved
- FM approved
*'Fire resistance tests for loadbearing elements. Floors and roofs'. System tested also featured ROCKWOOL BEAMCLAD(R).
Refer to the ROCKWOOL Red Book for all your product specification needs, including NBS clauses.
- BBA approved
- Non-combustible Euroclass A2-s1, d0
- LPCB approved (LPS 1181: Part 1 Ext A)
- FM approved
- Independently tested acoustic benefits
- Stone wool is dimensionally stable and will provide the same performance for more than 55 years after installation.*
- Can be recycled and reprocessed, reducing landfill costs, with zero ODP and GWP.
*- FIW, Durability Project Mineral Wool (2016), “Conclusions and Outlook.” Available via EURIMA (European Insulation Manufacturers Association)