ENGINEERED CONCRETE SYSTEMS FOR COLD STORAGE AND FREEZERS
Jointless Concrete Floors Engineered for Cold Storage and Freezer Facilities.
Success in Cold Storage Construction: Continuous Operation, Audit-Ready Hygiene, Lower Lifetime Cost
- 24/7 operation. No floor-related shutdowns for joint or sealant maintenance.
- Audit-ready hygiene from day one. Jointless surface for HACCP, FSMA, FSIS, USDA, BRC, and IFS compliance. Smooth surface for MHE, AGVs, and ASRS.
- No joint impact, no curling, less equipment and operator wear.
- Frost heave prevention engineered in. Slab and under-slab heating designed together from the first drawing.
- Lower lifetime cost. No joint sealant maintenance, no curling repairs, no panel-edge crumbling.
- Flexibility for future automation. No floor restrictions on future racking or layout changes.
In cold storage, the slab joint is where the problems concentrate: hygiene risk, MHE wear, sealant failure, repair downtime. PrīmX is jointless from the design stage, so the problems are removed at the source.
PrīmX delivers the full concrete floor scope for cold storage construction. We design the slab, supply the materials, and supervise the installation under one warranty for refrigerated warehouses, freezer facilities, and multi-temperature buildings operating from +5 °C / +41 °F to –30 °C / –22 °F.
Why Concrete Determines Cold Storage Success
WHAT COLD STORAGE SLABS HAVE TO HANDLE
Cold storage construction has structural requirements that general warehouse projects do not. At sub-zero temperatures, concrete contracts further than at ambient (room) temperatures. This widens saw-cut joints and stresses joint sealants. Joint sealants then degrade under the chlorinated cleaners and quaternary ammonium compounds used for food-grade hygiene. Once the room is at temperature, joint repairs are complex because most repair products do not work below 0 °C / 32 °F.
PrīmX is engineered for these conditions from the design stage. Cold storage is now the fastest-growing segment of industrial real estate. The U.S. cold storage market is projected to grow at around 12.8% CAGR through 2033, and three-quarters of North American cold storage facilities are already past their 25-year design life. Both new builds and retrofits benefit from a slab system designed for the cold from the first drawing
0Saw cuts across the freezer footprint, including under racking and ASRS aisles | FF / FLFloor flatness defined at design and warranted post-pour, ready for unit-load AS/RS and VNA | –30 °C / –22 °FSustained service temperature with engineered dimensional stability | HACCPContinuous hygienic surface supporting food-grade audits and FSMA and FSIS compliance |
Performance Built Into the System
ENGINEERED FOR WHAT COLD STORAGE DEMANDS
A cold storage slab faces stresses that general warehouse floors do not. Thermal contraction at sub-zero temperatures shrinks the slab. Vapor pressure forced upward by sub-slab insulation drives moisture through the top of the slab as it cures. Sub-grade frost can lift the floor (slab heave) if under-slab heating is undersized. Thermal shock from cleaning cycles stresses the surface. Continuous racking and forklift loads stress the slab 24 hours a day. PrīmX defines the structural and material response to each of these at the design stage
No Joint CurlingThe continuous PrīmX slab eliminates the curling lips that form at saw-cut joints in conventional cold storage floors. Curling is a major source of MHE wear in freezers, and removing the joints removes the cause. | Coordinated with Sub-Slab HeatingDesigned alongside under-slab glycol or self-regulating electric frost-heave prevention systems. Slab thickness, reinforcement, and heating output are calibrated as one system, and the floor-to-wall interface is detailed with insulated metal panels (IMPs). |
High-Load and ASRS-ReadyMeets the flatness and dimensional stability tolerances required by unit-load AS/RS, AGV, AMR, and pallet-shuttle systems operating in cold environments. Engineered for the rack base-plate alignment tolerances modern automation suppliers specify. | Multi-Temperature Zone ConsistencyThe same engineered system performs across ambient dock areas, +2 °C / +36 °F cooler zones, and –25 °C / –13 °F freezer zones. No break in slab type, finish, or warranty between zones. |
With PrīmX, cold storage construction teams get one accountable scope for the slab. Design, materials, and supervised installation come from one team, under one warranty. The floor performs to specification across the full operating life of the facility.
How PrīmX Differs from Conventional Cold Storage Floors
A DIFFERENT APPROACH TO COLD STORAGE CONCRETE
In conventional cold storage construction, the floor scope is split across several suppliers: the structural engineer, the concrete supplier, the steel fiber supplier, the joint hardware supplier, and the installer. PrīmX brings this scope together under one engineering and delivery team. The decisions that determine slab performance are made earlier, with one accountable owner.
Conventional jointed cold storage floor
| PrīmX integrated cold storage system
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Case Study: 19,500 m² / 210,000 sq ft Refrigerated Warehouse Conversion in Toronto, Ontario
"For this construction project, PrīmX was the best flooring choice." Ryan Pfeiffer, Construction Project Manager, Coldbox Builders Inc.
Coldbox Builders Inc. converted an existing mid-sized ambient warehouse into a refrigerated warehouse for a food-industry client in Toronto. The chosen floor system needed to be jointless to support material handling equipment and food-grade hygiene. PrīmX was specified across roughly 14,400 m² (151,000 sq ft) of the 19,500 m² (210,000 sq ft) footprint.
The existing floor had to be removed. A frost-heave prevention system, sub-slab insulation, and vapor barrier were installed below the new slab. Sequencing and on-site coordination were critical. A PrīmX engineer was on site during and after the pour, providing engineering support, quality control, and the cleanliness standards required by the food client.
Outcomes for Coldbox and the operator
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Approximately one month saved on the construction schedule, due to drastically reduced rebar installation time
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Less concrete material used while delivering higher load-bearing capacity
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Reduced front-end excavation depth, with direct savings for both Coldbox and the end client
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Continuous, jointless surface supporting food-grade hygiene requirements
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Smoother MHE operation, with no bouncing over joints and reduced wear on equipment and operators
210,000 sq ft / 19,500 m²Total facility footprint | 151,000 sq ft / 14,400 m²PrīmX jointless slab area | ~1 monthSchedule saved versus the conventional approach | Food industryEnd client sector |
Two Ways to Engage PrīmX
DELIVERY MODELS FOR COLD STORAGE PROJECTS
Whether you are in early design or already in construction, PrīmX can be integrated into your cold storage project. Engagement happens through one of two models, both with single-source accountability.
Full System ResponsibilityPrīmX delivers the full concrete floor scope for new-build and retrofit cold storage construction. We are the design partner, materials supplier, and installation contractor.
| Integration into Existing DesignFor projects where structural concrete is already specified and the goal is to upgrade slab performance within the existing program.
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What This Changes
BUILT FOR EVERY STAKEHOLDER IN COLD STORAGE CONSTRUCTION
DevelopersFaster path from pour to refrigeration commissioning. Predictable schedule. Improved cost control through defined material quantities and reduced excavation. Lower lifetime asset risk. | General ContractorsOne subcontract for slab design, materials, and supervised installation. Simplified MEP coordination at temperature transitions and dock interfaces. Fewer redesign cycles. Reduced site congestion through earlier slab access. | EngineersDefined floor performance from the design stage. Coordinated with under-slab heating, vapor barriers, and structural framing. Compliant with ACI 302.1, TR34 (4th edition), and equivalent regional standards for FF, FL, and FM tolerances. | OperatorsStable, hygienic floor over the facility's full life. Lower long-term maintenance cost, reduced MHE wear, and audit-ready hygiene from day one. |
Hygiene, Audit Compliance, and Facility Life
A jointless PrīmX slab supports HACCP, FSMA, FSIS, USDA, BRC, and IFS audit requirements throughout the facility's operational life, which is typically 25 years or more. Without saw cuts or armored joints, there are no sealant gaps to degrade under chlorinated cleaners, quaternary ammonium compounds, or peracetic acid, and no accumulation points for Listeria, Salmonella, or biofilm growth. Cleaning cycles run faster, and the same hygienic continuity supports food, pharmaceutical, and life-sciences cold storage where temperature-controlled GMP environments are required. Across the full operating life of the facility, the slab supports continuous MHE traffic, food-grade hygiene cycles, and stable racking and ASRS performance.
Coordinated with the Cold Storage Building System
PrīmX cold storage slabs are designed in coordination with the systems they connect to: under-slab heating, vapor barriers, sub-slab insulation, insulated metal panels (IMPs) at the floor-to-wall interface, and the racking and automation systems above. Under-slab glycol or self-regulating electric heating prevents slab heave, with slab thickness, reinforcement, and heating output calibrated as one engineered package. Vapor barriers, slip-sheets, and non-frost-susceptible backfill are coordinated into the same documentation set. The slab meets the FF50+ and FL35+ flatness and dimensional stability required by unit-load AS/RS, pallet-shuttle systems, AGVs, and AMRs, engineered to the integrator's specification (AutoStore, Symbotic, Daifuku, Dematic, HAI Robotics, or another supplier) before steel arrives.
Sustainability
LOWER EMBODIED CARBON THROUGH STRUCTURAL EFFICIENCY. NOT OFFSETS.
PrīmX reduces CO₂ at the source through structural design.
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Thinner slabs
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Reduced reinforcement
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Optimized material use
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Longer service life and fewer repair cycles
Cold storage operators meet sustainability targets through engineered material reduction. For projects targeting the lowest possible embodied carbon, PrīmX Pure delivers a carbon-engineered concrete formulation with sustained structural performance.
Define Your Cold Storage Concrete System Before Construction Starts
Early definition reduces risk, locks sequencing, and ensures predictable floor performance for the life of the facility. Engaging PrīmX at the design stage gives the project team a defined system to build around, with material quantities, tolerances, and delivery sequence agreed before construction starts.
Frequently Asked Questions
What is a jointless concrete floor for cold storage?
A jointless concrete floor for cold storage is one engineered with chemical prestress and steel fiber reinforcement so that no saw cuts and no armored joints are required across the freezer footprint. The slab is dimensionally stable at the operating temperature without contraction joints. The PrīmX system delivers a genuinely jointless slab across racking aisles, dock interfaces, and temperature transitions.
How does PrīmX prevent slab heave in cold storage?
PrīmX coordinates slab design with the under-slab heating system, vapor barrier, and sub-grade backfill specifications from the start. Slab thickness, reinforcement, and heating output are calibrated together so the slab resists upward pressure from ice forming in the sub-grade soil. The frost-heave prevention system is part of the structural design package, not a separate scope.
How does jointless concrete support HACCP compliance?
A jointless concrete floor has no saw cuts, no joint sealants, and no accumulation gaps where pathogens such as Listeria and Salmonella can establish biofilms. Cleaning cycles run faster because there are no joints to scrub. The continuous surface supports HACCP, FSMA, BRC, IFS, and pharmaceutical GMP audit requirements that examine floor hygiene as a critical control point.
Can existing cold storage floors be retrofitted with PrīmX?
Yes. Roughly three-quarters of North American cold storage facilities are past their 25-year design life, and retrofit demand is now a primary market driver. PrīmX has been installed in major refrigerated warehouse conversions, including a 19,500 m² / 210,000 sq ft facility in Toronto where the original ambient warehouse was converted to refrigerated storage with a jointless PrīmX slab. Retrofits typically involve removing the existing slab to a defined depth, installing a frost-heave prevention system, sub-slab insulation, vapor barrier, and where required a thermal break, then pouring the new PrīmX floor on top with on-site engineering supervision.