Thermal Dynamics
Cold storage facilities operate in a constant war against ambient physics. The building envelope must act as an impenetrable barrier between deep freeze interior climates and fluctuating external weather patterns.
Envelope Integrity
The standard construction methodology utilizes Insulated Metal Panels (IMPs). These are composite panels featuring a rigid polyurethane foam core sandwiched between two steel faces. Depending on the required temperature (ranging from +35°F for coolers down to -20°F for freezers), panel thicknesses scale from 4 inches up to 8 inches or more.
Joints are heavily sealed to prevent vapor transmission. If moist exterior air penetrates a freezer environment, it immediately sublimates into ice, causing structural damage to joints and dangerous frost buildup on logistical equipment.
Sub-Slab Protection
A freezer building operating at -10°F will eventually freeze the ground beneath its foundation. As soil moisture freezes, it expands, causing "frost heave"—a catastrophic failure where the concrete floor buckles upward, shattering racks and destroying the facility.
To combat this, engineers install an active underfloor heating system, pumping warm glycol through a grid of PEX tubing laid just beneath the sub-slab insulation. The building is simultaneously freezing the air above and heating the earth below.