Image: DEVIIn freezer rooms and cold stores the ground under the floor slowly freezes. Water in the soil expands and lifts the slab, cracking floors and moving columns. Low-output heating cable under the insulation keeps the ground above freezing. Insulation alone can't solve it.
Benefits and advantages
- Eliminates the risk of frost heave and foundation damage
- Protects the investment: the floor is the one part you can't repair while in use
- Reduced energy loss and a power-saving solution
- Space saving, with lower initial cost than alternatives
- Lowest cost of ownership, with no environmental concerns
- Safer working environment
System design starting points
- Heating cable (DEVIflex 18T or DEVIbasic) in the base slab under the floor insulation
- Keeps the soil just above 0 °C; the cold store itself runs at -20 to -30 °C
- Controlled by a DEVIreg 330 (-10 to +10 °C range) with a sensor
- Also used for door frames, gates and drain lines to stop ice forming
Typical uses
Freezer roomsCold stores and warehousesIce rinks
Products
Reference: DEVI Cold store protection systems, Heat Zone 2026 catalogue p. 7, 17–20, 25
Projects: CSL Behring, Broadmeadows · Woolworths distribution centre · Montague apple distribution centre
