Cold Storage Insulated Aluminum Roof Panels
150mm & 200mm PIR · -18°C to -30°C rated · Vapor barrier · Factory FOB
Cold storage roof panels are a specialized category within insulated aluminum sandwich panels. Standard warehouse panels are designed to minimize heat gain in a warm building — cold storage panels must prevent heat from entering a refrigerated space where every extra watt of heat translates directly into compressor energy consumption and product integrity risk.
Thickness Selection by Temperature Zone
| Temperature Zone | Interior Temp | Panel Thickness | U-Value |
|---|---|---|---|
| Chill / produce room | +2°C to +8°C | 100mm PIR | 0.22 W/m²K |
| Frozen food storage | -18°C | 150mm PIR | 0.15 W/m²K |
| Ice cream / deep freeze | -25°C | 150–200mm PIR | 0.15–0.11 |
| Blast freezer | -30°C to -35°C | 200mm PIR | 0.11 W/m²K |
Critical Specification Details
- Panel joints: EPDM compression gaskets at all longitudinal and transverse joints — silicone sealant alone is inadequate for cold storage thermal cycling (-30°C to +45°C differential in Gulf climate)
- Thermal bridges: Eliminate all metal-to-metal contact at panel perimeters and fastener locations. Use thermal break tapes at purlin interfaces
- Panel length: Limit to 6m maximum for cold storage applications (thermal bow management); use mid-span support if longer panels are required
- Face sheet: Interior face (cold side) should be stainless steel or hot-dip galvanized for food storage applications; standard aluminum acceptable for non-food frozen storage
- Fasteners: A2 stainless steel minimum; A4 for interior cold face to resist condensation corrosion
150mm PIR Cold Storage Panel Specifications
| Thickness | 150mm |
| Core | PIR, ≥ 42 kg/m³ |
| U-Value | 0.15 W/m²K |
| R-Value | 6.7 m²K/W |
| Exterior Face | 0.5mm aluminum, PVDF coated |
| Interior Face | 0.4mm aluminum; stainless steel option available |
| Vapor Barrier | Foil-faced PIR (integral) or 0.2mm PE film (specified separately) |
| Weight | approx. 14 kg/m² |
| Certifications | SGS / Intertek test reports standard; FM 4880 available |
| Applications | Frozen food storage (-18°C), pharma cold chain |
Typical Cold Storage Applications We Supply
- Seafood and meat processing plant cold rooms — Southeast Asia (Vietnam, Indonesia, Philippines)
- Pharmaceutical cold chain facilities — GCC countries
- Fruit and vegetable distribution centers — Jebel Ali, Dammam, JAFZA
- Dairy cold storage — Saudi Arabia, Kuwait
- Ice cream manufacturing — Blast freezers at -30°C to -35°C
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Frequently Asked Questions
What panel thickness do I need for a -18°C freezer?
Standard frozen storage at -18°C typically uses 150mm PIR (U-value ~0.15 W/m2K). Blast freezers down to -30°C use 200mm (~0.11 W/m2K).
Do cold storage panels need a vapor barrier?
Yes. Always specify a vapor barrier on the warm (exterior) side. Without it, water vapor migrates inward, condenses inside the insulation and destroys performance within a few years.
Why use EPDM gaskets at the joints?
Cold storage panels cycle through large temperature differentials. Sealant alone cracks under this thermal cycling, so EPDM compression gaskets are used at all panel joints.