Electrical Frost Heave Protection for Cold Storage Facilities
Cold Store Frost Heave Protection
In permanently refrigerated buildings, low temperatures can gradually penetrate through an insulated floor into the ground below. If moisture freezes, expansion can lift and damage the floor structure. Electrical frost heave protection maintains critical areas above the required minimum ground temperature.
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Electrical protection principle
Electric heating elements installed below the insulated floor prevent critical cooling of the subsoil. Temperature sensors and controls monitor the relevant zone and operate the heaters as required.
Controls and sensors are assessed for the specific floor system. High thermal inertia makes trends and system-specific alarm limits important. Before replacing controllers or heating components, we review existing drawings, electrical data and accessible connections. Inaccessible cables beneath the slab require a separate assessment.
Standards reference (checked 14 October 2026): For heating cables and embedded electric heating systems, the scope of IEC 60364-7-753:2014 and its German adoption DIN VDE 0100-753:2015-10 is checked. This installation reference does not replace the thermal assessment of a cold-store foundation. Heating, construction and protection functions are evaluated together.
Design, manufacture and support for your system
Pro Therm designs and manufactures electric frost heave protection systems for the cold store project. The agreed scope can include engineering and costing, heating components, controls, drawings, technical data and test records. Floor construction, area, temperatures and interfaces with the building design are coordinated before execution.
For existing installations, we provide maintenance, fault assessment and spare parts. Accessible circuits, sensors, connections and controllers are identified from the available records. For concealed components, the actual construction determines which tests or replacement options are feasible. Installation and commissioning scope are agreed for the specific project.
Typical applications
Frost heave protection is mainly used in freezer warehouses, cold stores, freezer rooms and other permanently refrigerated buildings. Additional heating may be used around doors, transitions or other critical areas depending on the facility.
Spare parts for existing systems
We support operators with replacement heating components, sensors, controllers and other parts for existing systems. Availability and compatibility are evaluated for the actual installation. Before selecting a replacement, the type, electrical ratings, connection method and installed conditions of the existing component need to be recorded. An older part cannot always be replaced with a current product without technical review.
Standards reference (checked 14 October 2026): For heating cables and assemblies outside hazardous areas, IEC/IEEE 62395-1:2024 is the international reference for general requirements and testing. Germany still lists DIN EN 62395-1:2014-10 as the current national edition.
Tracking floor temperatures over time
Frost-heave protection safeguards a structure with considerable thermal inertia. Trends therefore matter: which sensor is changing, when did the change begin, and which circuits serve that area? An alarm does not by itself prove that a heating element has failed. Sensors, controls and the power supply are also assessed. Pro Therm’s current scope focuses on technical advice, equipment supply, spare parts and maintenance of existing systems.