PIR roof sandwich panels
PIR Roof Sandwich Panels for Fire-Rated Cold Storage and Industrial Roofing
We manufacture PIR roof sandwich panels with a polyisocyanurate core (40–48 kg/m³) and corrugated steel facing for projects where roof fire performance is as important as thermal insulation. With a typical λ of 0.020–0.024 W/m·K and improved char formation at elevated temperatures, PIR roof panels meet stricter fire codes while delivering span performance comparable to PU at a given thickness. Shipped factory-direct from Shandong to Chile, Peru, Colombia and Indonesia.
Why PIR Roof Panels from LIAOHE
PIR (polyisocyanurate) delivers the thermal performance of PU with added fire safety. When exposed to flame, PIR forms a protective char layer that slows fire spread and reduces smoke emission. For cold storage roofs, pharmaceutical warehouses, and industrial facilities where the roof is a critical fire compartment boundary, PIR often satisfies insurance and code requirements that PU alone cannot.
We produce PIR roof panels on the same continuous lamination line as PU, with a corrugated roll-forming station before foaming. The chemical formulation is batch-controlled per order for consistent fire performance. End-lap and side-lap joint details are identical to PU roof panels, so your installation crew uses the same tools, fasteners, and sealant procedures.
- Core material: polyisocyanurate (PIR) rigid foam
- Product position: roof panel system (3-rib / 5-rib profile)
- 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 roof panel 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 | Roof panel (3-rib or 5-rib corrugated profile, overlap joint) | 5-rib recommended for fire-rated roofs with longer spans. |
| Core density | 40–48 kg/m³ (standard); up to 55 kg/m³ on request | Higher density improves dimensional stability at elevated temperatures. |
| Panel thickness | 50 / 75 / 100 / 120 / 150 mm | Selected by span, fire resistance period, and U-value target. |
| Thermal conductivity λ | 0.020–0.024 W/m·K (initial, 10°C mean) | Aged values per EN 13165; U-value calculation included with quotation. |
| Fire performance | B1 (EN 13501-1) standard; B-s1,d0 achievable with confirmed formulation | Specify required Euroclass before quotation; PIR outperforms PU in fire. |
| Span capacity (single-span) | 1.5–3.0 m typical at standard loads (0.5 kN/m²) | Comparable to PU at same thickness; project-specific span table provided. |
| Minimum roof slope | 5° (8.7%) recommended; 3° minimum with sealed side lap | Lower slopes require additional lap-joint sealant and end-lap waterproofing. |
| Effective width | 1000 mm standard | Covers 1000 mm per panel after side-lap overlap. |
| Steel facing | 0.4–0.8 mm; top sheet PPGI/Galvalume, bottom sheet PPGI/Al-Zn | Stainless steel facing available for food-grade roof applications. |
PIR roof panel pricing reflects the higher raw material cost vs. standard PU. Fire test reports (EN 13501-1) and span tables are provided with the quotation package.
Applications
PIR roof panels are specified where building codes, insurance requirements or owner standards demand improved fire performance at the roof plane.
- Cold storage and freezer warehouse roofs — see our Indonesia cold room project
- Pharmaceutical and vaccine storage roofs — temperature-controlled roofs with fire safety requirements per GMP standards
- Food processing plant roofs — hygienic environments where fire-rated roof construction is mandatory
- Industrial roofs with insurance fire requirements — projects where the insurer or local fire code mandates B1 or better at the roof assembly
Manufacturing, Quality, and Delivery
PIR roof panel production follows the same quality-controlled process as PU roof panels, with additional chemical formulation adjustments for fire performance.
Production Line
Continuous lamination with in-line corrugated roll forming and density monitoring. PIR formulation is batch-controlled per order for consistent fire performance across the full panel run.
Export Packing & Loading
Face-to-face packing with interleaving to protect rib profiles. PE film, edge protectors and double strapping on ISPM 15 pallets. Container load plans calculated per order.
Certifications & Documents
ISO 9001 certified. Fire test reports (EN 13501-1), PIR material data sheets, and span tables provided with quotation. Third-party testing available for project certification.
Project Reference
Our PIR roof panels are installed on cold storage and industrial roofs 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 roof panels depending on thickness and profile.
What We Need for Your Quotation
Send the following with your roof layout drawings and we return a quotation with span table and packing plan within 2–3 working days.
- Panel type (roof) and core material (PIR)
- Required fire rating class (Euroclass per EN 13501-1)
- Rib profile: 3-rib or 5-rib
- Panel thickness, core density, and U-value target
- Purlin spacing, roof slope, and local wind/snow load standard
- Steel facing: thickness, coating type, color (RAL code)
- Panel length and total quantity or roof area (m²)
- Destination country and delivery port
- Accessories: ridge caps, flashings, fasteners, lap-joint sealant
Send Roof Specifications for PIR Panel Quotation
Email your roof layout with fire rating requirements. Our team confirms fire classification feasibility, span capacity, product configuration and packing plan. Quotes typically delivered within 2–3 working days.