PIR wall sandwich panels
PIR Wall Sandwich Panels for Cold Storage and Fire-Rated Industrial Buildings
We manufacture PIR wall sandwich panels with a polyisocyanurate core for projects that need higher fire performance and thermal stability than standard PU. With a typical λ of 0.020–0.024 W/m·K and improved char formation at elevated temperatures, PIR is the panel specifiers choose when both insulation and fire rating matter. Shipped factory-direct from Shandong to Latin American and Southeast Asian markets.
Why PIR Wall Panels from LIAOHE
PIR (polyisocyanurate) is an advanced rigid foam that improves on PU by forming a protective char layer when exposed to fire, which slows flame spread and reduces smoke. For cold storage facilities, pharmaceutical warehouses, and industrial buildings where fire codes are strict, PIR often satisfies requirements that PU alone cannot.
We run the same continuous lamination line for both PU and PIR. When you place an order, we adjust the chemical formulation and process parameters to produce PIR with the specified density and fire rating. The result is a panel that costs slightly more than PU but delivers measurable gains in fire safety and insurability.
- Core material: polyisocyanurate (PIR) rigid foam
- Product position: wall panel system
- Factory-direct manufacturing, Shandong
- Export packing and container-loading support
Technical Specifications
Final production data must follow confirmed drawings and project specifications. Values below represent our standard PIR manufacturing capability.
| Item | Typical / Available Range | Quotation Note |
|---|---|---|
| Core material | Polyisocyanurate (PIR) rigid foam, CFC-free | Confirm required density and fire rating class. |
| Panel type | Wall panel (tongue-and-groove / concealed fastener) | Wall and roof profiles must not be mixed in one order. |
| Core density | 40–48 kg/m³ (standard); up to 55 kg/m³ on request | Higher density improves dimensional stability and screw retention. |
| Panel thickness | 50 / 75 / 100 / 120 / 150 / 200 mm | Selected by project U-value target and span conditions. |
| Thermal conductivity λ | 0.020–0.024 W/m·K (initial, 10°C mean) | Aged values per EN 13165; project-specific calculation available. |
| Fire performance | B1 (EN 13501-1) standard; B-s1,d0 achievable with confirmed formulation | Specify required Euroclass before quotation; PIR outperforms PU in fire. |
| Effective width | 1000 mm / 1120 mm depending on profile | Concealed fastener joint recommended for cold storage. |
| Steel facing | 0.4–0.8 mm; PPGI / Galvalume / stainless steel available | Food-grade stainless steel facing available for hygienic applications. |
Certified fire ratings and U-value calculations are provided with the project quotation package. PIR panel pricing reflects the higher raw material cost vs. standard PU.
Applications
PIR is specified where building codes, insurance requirements or owner standards demand improved fire performance alongside thermal insulation.
- Cold storage and freezer warehouses — operating down to −30°C; see our Indonesia cold room project
- Pharmaceutical and vaccine warehouses — temperature-controlled environments with fire safety requirements
- Food processing plants — hygienic wall surfaces where fire-rated construction is mandatory
- Industrial buildings with insurance fire requirements — projects where the insurer or local code requires improved fire performance
PIR vs. PU Wall Panels: What You Gain
PIR is the upgrade when fire performance and service temperature matter.
| Feature | PU Wall | PIR Wall |
|---|---|---|
| Thermal conductivity λ | 0.022–0.025 W/m·K | 0.020–0.024 W/m·K |
| Fire performance | B2 standard | B1 standard |
| Max service temperature | ~80 °C | ~120 °C |
| Char formation in fire | Limited | Protective char layer |
| Best for | Cost-sensitive insulation | Fire + cold requirements |
Manufacturing, Quality, and Delivery
PIR production follows the same quality-controlled process as PU, with additional chemical formulation adjustments for fire performance.
Production Line
Continuous lamination with in-line density and thickness monitoring. PIR formulation is batch-controlled per order for consistent fire performance across the full panel run.
Export Packing & Loading
Edge protectors, PE film, steel strapping on ISPM 15 pallets. PIR panels are loaded with the same care as PU — bundle counts and container utilization calculated per order.
Certifications & Documents
ISO 9001 certified. Fire test reports and PIR material data sheets provided with quotation. Third-party testing available upon request for project-specific certification.
Project Reference
Our PIR panels are installed in cold storage and industrial projects across Southeast Asia. View all project cases →
Delivery Capability
Factory capacity, lead time and container-loading data for export planning.
Monthly Production Capacity
PIR shares the same lamination line as PU; formulation switchover is scheduled per order to maintain output.
Typical Lead Time
Standard specifications: 15–20 days after deposit. Custom colors, special coatings or non-standard thicknesses: 25–35 days. We confirm a production slot and vessel plan before order acceptance.
Container Loading
A 40HQ container typically loads 900–1,100 m² of PIR wall panels depending on thickness and profile.
What We Need for Your Quotation
Send the following with your drawings and we return a quotation with packing plan within 2–3 working days.
- Panel type (wall) and core material (PIR)
- Panel thickness, core density, and fire rating requirement
- Steel facing: thickness, coating type, color (RAL code)
- Panel length and total quantity or project area (m²)
- Destination country and delivery port
- Accessories: flashings, trims, fasteners, sealants
Send Drawings for PIR Panel Quotation
Email your project specifications. We confirm fire rating feasibility, product configuration, packing plan and container loading. Quotes typically delivered within 2–3 working days.