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PU + Rock Mineral Wool Wall Panel

Why Arteco

  • U.S. manufacturing and assembly
  • Engineering selection support
  • Pressure-tested before shipment
  • Spare parts and documentation

PU + Rock Mineral Wool Wall Panel

Category: Sandwich Panels

The PU + Rock Mineral Wool Wall Panel is a composite-core system that refuses the usual trade-off between insulation efficiency and fire performance. Layers of rigid polyurethane foam deliver the low conductivity that keeps rooms efficient at 0.022 W/mK class performance, while rock mineral wool layers contribute non-combustible mass, high-temperature stability and sound absorption. The combined core, bonded between steel facings, serves walls and partitions where projects need genuine thermal performance and fire-robust construction in the same element – effective width 1000mm, lengths from 2m to 12m.

Key Features and Benefits

  • Composite core pairs PU’s insulation efficiency with rock wool’s non-combustible behavior, covering requirements that neither material satisfies alone.
  • Fireproof mineral wool layers improve the panel’s fire response compared with foam-only construction, supporting stricter envelope specifications.
  • Thermal insulation from the PU layers keeps heat gain low, protecting room temperature stability and energy cost.
  • Rock wool layers absorb sound, damping noise transmission between rooms and from plant areas.
  • Effective width 1000mm and lengths from 2m to 12m suit partition systems, enclosures and exterior walls.
  • Steel facings provide cleanable, durable surfaces for industrial and food environments.
  • Dimensionally stable construction performs through temperature and humidity cycling without core movement.
  • One panel replaces built-up assemblies of separate insulation and fire layers, simplifying construction.

Typical Applications

The composite panel serves rooms where requirements stack: temperature-controlled spaces inside fire-regulated buildings, partitions between processing rooms and hot utility areas, walls separating chill storage from boiler or electrical rooms, acoustic and thermal barriers around compressors, and exterior envelopes of facilities where insurers scrutinize insulation combustibility. Food plants retrofitting cold rooms inside existing structures are a frequent case, because the panel delivers cold-room thermal behavior with fire characteristics the host building’s approvals can accept.

Engineering a Composite Core: What Layering Achieves

Single-material panels force a choice. Foam insulates brilliantly but remains combustible; mineral wool resists fire but conducts more heat. A composite core engineers around the choice by giving each material a defined job. The PU layers carry the thermal duty – their closed-cell structure and low conductivity do the insulating work where it counts. The rock wool layers carry the fire and acoustic duty – non-combustible mass that improves the assembly’s fire behavior and damps sound transmission. Because the layers are factory-bonded into one panel, the combination arrives as a single component: no site assembly of separate boards, no gaps between layers, no interface details left to workmanship. The engineering task is proportioning the layers for each project’s balance of thermal and fire requirements, which we do during selection. The result is an envelope element whose specification reads simply – one panel – while its performance covers ground that used to require compromise.

Manufacturing Quality and Project Support

Composite cores are assembled and bonded to facings under controlled pressure; panels are inspected for layer alignment, facing adhesion and dimensional accuracy before packing. Arteco prepares layouts with joint details, coordinates panels with doors and penetrations, and provides the thermal and fire documentation projects need for approvals and insurance review.

Frequently Asked Questions

Is a composite panel as fire-resistant as full rock wool construction?

Fire behavior depends on the layer proportions and tested assembly. Composite panels improve fire response versus foam-only systems; for pure fire-barrier duty, full rock wool panels remain the reference. We specify according to your project’s fire requirement.

How does insulation performance compare with pure PU panels?

The PU layers carry most of the thermal duty, so performance approaches foam-panel levels at comparable thickness, with the rock wool layers contributing fire and acoustic benefits. We calculate U-values per construction during selection.

Where does this panel make the most economic sense?

In rooms where both requirements are real: cold spaces inside regulated buildings, walls adjacent to hot processes, and insured facilities with combustible-material clauses. It avoids building up separate insulation and fire layers on site.

Can panels serve cold room walls?

Yes – with thickness engineered to the room temperature. Composite construction is especially useful where the cold room shares structure with fire-regulated spaces.

What documentation supports project approvals?

Thermal data and fire documentation for the panel construction ship with the order, and additional testing paperwork can be arranged for specific regulatory requirements.

Engineering Composite Constructions for Stacked Requirements

Projects with stacked requirements – thermal, fire and acoustic in one wall – benefit from composite engineering applied deliberately. The design starts by ranking the requirements: which governs thickness, which governs material class, which is satisfied incidentally. Thermal duty typically sets total thickness through heat-load calculation; fire governance sets the proportion of mineral content; acoustic needs are often met by the mineral layers without additional design. From this ranking, the layer configuration is proportioned and documented, so the panel construction is engineered rather than assumed. Verification follows: U-value calculation for thermal performance, classification data for fire, and acoustic estimates where targets are specified. Owners receive a wall whose every requirement is documented as satisfied – the evidence compliance reviewers ask for. This engineering discipline is what distinguishes composite panels used purposefully from composite panels used hopefully.

Can you document performance for all three requirements?

Yes. Thermal calculations, fire classification data and acoustic estimates ship with the order, giving your approval and insurance reviewers the evidence for each requirement the wall serves.

Technical Specifications

SpecificationValue
Core MaterialPU + Rock Mineral Wool
PropertiesFireproof, thermal insulation, sound absorption
Standard Length2m-12m
Effective Width1000mm

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