Technical design guide for cold storage envelopes, detailing insulation thickness requirements by room temperature, cam-lock joinery, floor thermal breaks, and food safety hygiene.
In cold storage engineering, the building envelope acts as an active thermal vault preserving expensive refrigeration energy and perishable cargo. Selecting inappropriate insulation thickness causes compressor overload and destructive ice buildup.
1. Cam-Lock Mechanical Tightness
Panels feature factory-foamed eccentric steel cam-locks that pull male-female joints together under 200 kg tension using an allen key, forming an airtight thermal barrier without visible external fasteners.
Comprehensive Engineering Comparison Matrix
| Room Regime | Operating Temp | PIR Core Thickness | Floor Specification |
|---|---|---|---|
| Packhouse / Preparation | +10°C to +15°C | 60 mm to 80 mm | Uninsulated floor acceptable |
| Chilled Cold Store | 0°C to +4°C | 80 mm to 100 mm | Reinforced insulated floor panel |
| Freezer Storage | -18°C to -22°C | 120 mm to 150 mm | Heated sub-base + double XPS |
| Blast Freeze Tunnel | -35°C to -40°C | 150 mm to 200 mm | Underfloor heating mat required |
Specify 80-100 mm PIR for positive storage (+4°C) and 120-150 mm PIR with underfloor heating cables for sub-zero freezer rooms (-18°C).
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Cold Room Dimensions, Panel Quantity & Logistics Calculator
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Frequently Asked Questions
What happens if a freezer room lacks floor insulation? ▼
Sub-soil moisture freezes, expands, and heaves upward (frost heave), rupturing the concrete slab and storage racks.