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PU/PIR Cold Storage Panel
PU/PIR Cold Storage panels are rigid polyurethane insulation sandwich panels with metal facings, specifically designed for low-temperature, enclosed storage spaces. They are composed of three integrated elements: inner and outer metal facings, a high-density rigid polyurethane core, and a specialized double-locking tongue-and-groove joint system. Primarily used for cold storage walls, ceilings, and partitions, their core function is to provide long-lasting thermal insulation and minimize the loss of cold air.
- Overview
- Recommended Products
Product details
- Double-lock sealed joints engineered specifically to eliminate cold bridging and condensation — not adapted from a wall or roof panel design
- Full thickness range from 50mm to 200mm to match any temperature zone from chilled storage to deep-freeze
- PIR B1 fire-rated core available for pharmaceutical and quick-freeze projects with strict fire code requirements
- Ceiling panels engineered for creep resistance so panels stay crack-free under sustained low-temperature load
- Custom width and length cutting to fit your exact room layout
PU/PIR Cold Storage Panel
Double-side flat insulated panels engineered for cold room walls, ceilings and quick-freeze storage — with double-lock airtight joints, high-density PU/PIR core, and PIR B1 fire-rated options for pharmaceutical and food cold chain projects.
Get a Free Quote →Built for Airtight, Frost-Free Cold Chain Storage
A cold storage panel does a fundamentally different job than a factory wall panel or a roof panel. It is not judged by how well it sheds rain, but by how completely it blocks cold bridging and moisture migration over years of continuous temperature cycling. Glostar's PU/PIR cold storage panels use a fully flat, non-corrugated face on both sides and a double concave-convex dual-lock joint pre-filled with sealant, giving cold rooms, quick-freeze chambers and pharmaceutical cold chain facilities the airtight envelope they need to hold temperature and stay condensation-free.
Technical Specifications
| Specification | Details |
|---|---|
| Core Application | Cold storage walls, cold storage ceilings, insulation & anti-frost enclosures |
| Panel Surface Profile | Double-side flat panel — no corrugation on either face |
| Standard Effective Width | 960mm (mainstream), 1100mm available |
| Joint Structure | Double concave-convex dual-lock sealed joint, pre-filled with sealant |
| Core Density | Fresh-keeping PU: 40-42kg/m³ | Quick-freeze PIR: 45-50kg/m³ |
| Standard Thickness | 50 / 75 / 100 / 150 / 200mm (upgraded to match storage temperature) |
| Waterproofing Design | Not rain-focused — prioritizes airtightness to eliminate cold bridging |
| Fire Rating | PIR B1 rating mandatory for pharmaceutical and quick-freeze applications |
| Structural Performance | Ceiling panels engineered for creep resistance; no cracking at low temperature |
| Cold Bridge Control | Extremely high — double-lock groove blocks cold bridging and eliminates surface condensation |
Which Thickness Do You Need?
| Storage Temperature | Recommended Thickness | Typical Use |
|---|---|---|
| Above 0°C | 50-75mm | Chilled/fresh produce storage |
| 0°C to -18°C | 100mm | Standard cold storage |
| Below -18°C | 150-200mm | Deep-freeze / quick-freeze storage |
*Final thickness should be confirmed against room dimensions, ambient climate and product turnover rate. Contact our engineering team for a project-specific recommendation.
Cold Storage Panel vs. Factory Wall Panel vs. Roof Panel
Choosing the wrong panel type for the application is one of the most common — and costly — mistakes in cold chain construction. Here is how our three PU/PIR panel families compare:
| Comparison | Factory Wall Panel | Roof Panel | Cold Storage Panel |
|---|---|---|---|
| Core Use | Factory interior/exterior walls, partitions | Steel structure roofing, waterproof load-bearing | Cold room walls & ceilings, anti-frost enclosure |
| Surface Profile | Flat / micro-corrugated / V8 small ribs | Large 3-rib or 4-rib for water drainage | Fully flat both sides, no ribs at all |
| Joint Type | Simple male-female tongue and groove | Overlap joint with drainage groove | Double dual-lock sealed joint, pre-filled sealant |
| Core Density | PUR 38-42kg/m³ | PUR 40-45kg/m³ | 40-50kg/m³ (PU/PIR) |
| Cold Bridge Control | Low priority | Medium priority | Highest priority — core design requirement |
Production Process
Glostar is equipped with a fully automated production line for cold storage panels. Its core machinery features an advanced Italian seven-component continuous foaming system capable of precise, real-time mixing and automatic process parameter adjustment based on ambient temperature fluctuations. This ensures the stable production of high-strength, energy-efficient, and eco-friendly polyurethane insulation materials that offer superior sound insulation and fire resistance.
The entire production line boasts a high level of automation and seamless unit coordination, resulting in significantly enhanced production efficiency and an annual capacity exceeding one million square meters. The resulting energy-efficient polyurethane insulation panels excel in surface flatness, structural strength, thermal insulation performance, and ease of installation, making them ideal for building insulation systems that demand high standards for energy efficiency and fire safety.
Applications
Pharmaceutical Cold Chain
PIR B1 fire-rated panels for vaccine and drug cold storage facilities
Food & Quick-Freeze Storage
High-density PIR core for meat, seafood and frozen food warehouses
Walk-In Coolers & Freezers
Modular panel sizing for retail and commercial cold rooms
Why Choose Glostar Cold Storage Panels
Frequently Asked Questions
What is the difference between PU and PIR cold storage panels?
PU core panels (40-42kg/m³) suit standard fresh-keeping storage. PIR core panels (45-50kg/m³) carry a B1 fire rating and are required for quick-freeze and pharmaceutical cold chain applications.
What thickness should I choose for my storage temperature?
50-75mm for above 0°C, 100mm for 0°C to -18°C, and 150-200mm for below -18°C deep-freeze storage. See the thickness guide above for details.
Why does a cold storage panel need a double-lock joint?
Cold storage panels must be fully airtight to prevent cold bridging and condensation at the seams. A standard single tongue-and-groove joint used on wall or roof panels cannot achieve this level of seal.
Need a Cold Storage Panel Quote?
Tell us your storage temperature and room size — we'll recommend the right thickness and joint spec for your project.
Request a QuoteEmail: [email protected] | WhatsApp: +86 195 5427 6139
