150mm Rockwool Hardrock Multi-Fix DD Underlay Slab

Rockwool HardRock Underlay Slab Multi-Fix (DD) delivers high-density, non-combustible thermal insulation performance for warm flat roofs. Extensively tested for acoustic performance and fire resistance, this board excels in demanding applications.

This 150mm Hardrock Multi-Fix insulation board strengthens lightweight flat roof insulation systems by minimising noise transmission through the building envelope.

Perfect for high-traffic areas requiring regular maintenance, these 150mm Rockwool Hardrock boards work seamlessly with all roof covering types, including torch-on, pour-and-roll, single-ply, EPDM, liquid-applied, and green roofs.

Product specification

• Thickness: 150mm
• Width: 1000mm
• Length: 1200mm
• Pallet Quantity: 8
• Pallet Coverage: 9.60m2
• Density: 160kg/m3
• Weight/m2: 9.6kg
• Weight: 230.4kg
• Thermal Conductivity: 0.039W/mK
• R-Value: 1.54m2K/W
• Fire Rating (Reaction to Fire): A1(Non-combustible)
• Application: Primary base layer for all systems
• Applications: Torch applied, pour and roll bitumen, single ply and EPDM mechanical or adhered systems, liquid applied systems and green roof

This stone wool insulation board features a mineral-coated white fleece facing, making it compatible with numerous adhered and mechanically fixed waterproofing solutions, including bitumen, single-ply, EPDM, liquid membranes, and green roof systems.

Key features include:

• Zero smoke hazard with no contribution to fire growth at any stage, including fully developed fire scenarios.
• Non-combustible to UK building regulations, meeting Zurich School and Academy Design guide and HTM05-03 healthcare guidance requirements.
• LPCB approved with highest classification, LPS1181: Part 1 EXT – A rated constructions.
• Outstanding acoustic reduction, absorption, and impact (rain noise) performance.
• Complies with all BB93 (Education) and HTM08-01 (Healthcare) acoustic standards.
• Acoustic solutions deliver additional BREEAM points.
• Dimensionally stable throughout service life.
• Reliable thermal performance without blowing agents, offering zero ODP and GWP.
• Fully recyclable and reprocessable, minimising landfill impact and reducing costs.

Applications

150mm Rockwool Hardrock Multi-Fix Underlay Slab roofing boards suit the following roofing systems:

• Fully bonded, partially bonded, and mechanically fastened single-ply membrane systems, plus EPDM membrane systems.

• Torch-applied, bitumen-based, and mastic asphalt built-up systems.

• Liquid-applied systems.

• Green roof systems.

• Rockwool Acoustic Membrane is a high-density polymer mass layer that, when combined with HardRock Multi-Fix (DD), offers enhanced acoustic performance for the highest specifications.

• Rockwool insulation Acoustic Infills are tissue-wrapped, trapezoidal-shaped trough inserts designed to improve the acoustic absorption of perforated metal decks.

More Information on 150mm Rockwool Hardrock DD Underlay Slab

• Manufacturer Link: 150mm Rockwool Hardrock Multi-Fix DD Underlay Slab
• Browse our Rockwool Insulation range and filter by thickness or coverage on the left-hand side of the page. For project suitability advice or quantity discount quotations, contact us by phone on +4402038839057, email sales@insulationbee, or use Live Chat for the best UK Rockwool Insulation prices.