The vocabulary of cold storage sits across three trades (real estate, construction, and refrigeration engineering), and terms carry different weight in each. These are the ones that come up most often in Canadian transactions and projects.
Terms
- Ambient
- Unrefrigerated or lightly conditioned storage, typically around +15 °C. Often included as a zone within a multi-temperature facility for dry goods and packaging.
- AS/RS
- Automated Storage and Retrieval System. Robotic handling of pallets within racking. The real estate consequence is clear height: AS/RS buildings can run well beyond 100 feet, which changes the structure, the fire strategy, and the planning application.
- Blast freeze
- Rapid freezing of product, typically at −30 to −40 °C with high air velocity across the product. Peak refrigeration load is far higher than for storage alone, so a blast cell drives plant sizing disproportionately.
- Cap rate
- Capitalisation rate: net operating income divided by value. Stabilised cold storage in Canada has generally traded at tighter cap rates than comparable dry industrial, reflecting thin supply and high replacement cost.
- CFIA
- Canadian Food Inspection Agency. Administers federal food safety licensing under the Safe Food for Canadians Regulations. See our CFIA guide.
- Chill
- Refrigerated storage above freezing, typically +2 to +4 °C. Used for fresh produce, dairy, and meat.
- Clear height
- Usable vertical height from floor to the lowest overhead obstruction. In cold storage it is measured after the insulated ceiling, which is why a converted dry building loses height that a spec sheet may not reflect.
- Cubic capacity
- Storage volume rather than floor area. Cold storage operators price and plan in cubic feet and pallet positions; valuing a refrigerated building purely on square footage misses most of what it does.
- Dock leveller
- The adjustable platform bridging dock and trailer. In cold storage it works alongside seals and shelters to limit warm, humid air infiltration, a significant and often underestimated refrigeration load.
- ERAP
- Environmental Emergency Response Plan. Required under federal environmental legislation where a regulated substance, ammonia among them, is held above a threshold quantity.
- ESFR
- Early Suppression, Fast Response sprinkler system. Common in high-bay warehouses. Freezer applications require dry or pre-action systems, since a wet system would freeze.
- Frost heave
- Upward movement of a floor slab caused by freezing of the ground beneath it. Prevented by heating the sub-slab, usually with a glycol loop or electric grid. Retrofitting the fix after heave has occurred is extremely expensive.
- Glycol loop
- A circuit of heated glycol beneath a freezer slab that keeps the ground below freezing point. The standard frost heave prevention method in new construction.
- HACCP
- Hazard Analysis and Critical Control Points. The systematic food safety methodology underlying both CFIA preventive control requirements and private certification schemes.
- IMP
- Insulated Metal Panel. Prefabricated sandwich panel forming the refrigerated envelope. Joint detailing and vapour barrier continuity at penetrations determine whether the envelope performs or slowly fails.
- Infiltration load
- The refrigeration load created by warm, humid outside air entering the space, principally through doors and docks. Frequently a larger share of total load than owners expect.
- Low-charge ammonia
- System design minimising total ammonia inventory, often using packaged units close to the load. Can bring a facility below regulatory thresholds while retaining ammonia efficiency.
- Pallet position
- One pallet-sized storage slot in the racking. The unit operators actually plan capacity in, and the number that matters more than square footage when sizing a requirement.
- Pull-down
- Bringing a newly built or newly repaired space down to operating temperature. Must be gradual to avoid stressing the structure and envelope, and it cannot safely be compressed to recover schedule.
- Sale-leaseback
- An owner-occupier sells the facility and simultaneously leases it back, converting real estate equity to working capital while keeping operations in place. The lease terms drive the sale price directly.
- SQF / BRCGS
- Private, GFSI-recognised food safety certification schemes. Voluntary in law but commercially close to mandatory for grocery and major processor customers.
- Thermal bridging
- A path of higher conductivity through the insulated envelope, typically a structural member, that leaks heat and causes condensation and ice formation. A detailing problem, and one of the most common defects in cold buildings built by non-specialists.
- Transcritical CO₂
- A CO₂ refrigeration cycle operating above the critical point on the high side. The leading natural-refrigerant alternative to ammonia for new builds.
- Vapour barrier
- The continuous membrane preventing moisture migration into the insulated envelope. In cold storage it sits on the warm side. A discontinuous vapour barrier will saturate the insulation and destroy its performance over a few seasons.
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