HARDROCK® Multi-Fix (DD) Tapered
ROCKWOOL HARDROCK® Multi-Fix (DD) Tapered is a BBA-approved stone wool insulation board, fabricated to provide a fall across a roof suitable for drainage and water management.
The product is faced with a mineral-coated glass fibre tissue which ensures compatibility 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.
For ease of specification, HARDROCK Multi-Fix (DD) Tapered is backed by a complete design to delivery service.
|NBS Clause||Length (mm)||Width (mm)||*Approved thickness range (mm)|
|1200||100||60 - 185|
*Thickness options may be subject to a minimum production volume. Speak to the specification team for guidance.
Standards and Certification
|Product standards||BS EN 13162, ISO 14001|
|CE Marking||CE Marked|
|BBA Approved||BBA approved (21/5878)|
Reaction to fire (Euroclass)
Water vapour resistance
Insulation layer 1
Insulation layer 2
Single ply membraneU-value (W/m2K)
Bitumen (2-layer felt)U-value (W/m2K)
|Insulation layer 1 (mm)||Insulation layer 2 (mm)||Airborne reduction (dB)||Rain intensity (dB)||Airborne reduction (dB)||Rain intensity (dB)|
|150||60||Rw 44||LIA 48.7||Rw 45||LIA 47.5|
|150||85||Rw 45||LIA 47.8||Rw 46||LIA 46.7|
|150||105||Rw 46||LIA 47.1||Rw 47||LIA 46.1|
Download CAD Drawings here