A common concern in the restoration industry is whether cool room panel assemblies must be automatically removed and disposed of following contact with contaminated floodwater. It is the technical position of Restoration Industry Consultants that no industry guidelines or standards currently stipulate a universal requirement for the disposal of affected cool room panels. Instead, the determination to salvage or dispose of these materials must be conducted on a case-by-case basis, focusing on the integrity of the product and the manageability of microbial risks.

Material Composition and Impermeability

The resilience of cool room panels is largely due to their construction. Most modern insulated panels consist of an Expanded Polystyrene (EPS) core sandwiched between two layers of structural material, typically Colourbond sheet steel, supported by a steel or aluminium framework.

These thermally insulated panels are engineered to be well-sealed and largely impermeable to water. Leading manufacturers indicate that finished products often have a water absorption rate of less than 0.7%, essentially making the panels waterproof. However, the ability of moisture to enter the assembly depends on several variables:

• The quality and specific construction of the materials.
• The precision of the original installation.
• The current physical condition of the panels.

The Context of Normal Use

When making a salvage determination, it is essential to consider the cool room’s normal operating environment. These panels are regularly subjected to high moisture levels, including constant condensation and aggressive wet washing. Because they are designed to withstand these conditions, contact with floodwater does not inherently necessitate a total loss, provided the assembly remains sealed.

Scientific Criteria for Assessment

A qualified consultant evaluates several specific factors to determine if the panels can be safely restored:

• Permeation: Has water successfully permeated the gap between the EPS core and the sheet steel?
• Structural Integrity: Has the flood event caused physical damage to the panels or the supporting framework?
• Trapped Moisture: Is there a likelihood of moisture being trapped within the assembly? This is a particular risk if panels are subset into flooring, such as a cement screed, which can lead to long-term material deterioration or microbial contamination.
• Pre-existing Conditions: Is there evidence of damage or wear and tear unrelated to the flood event that has already compromised the material?

Restoration and Verification

Even if panels are deemed salvageable after a technical assessment, cleaning and sanitising are always required. In rare instances, specialised structural drying may also be necessary to return the environment to a safe state.

Given the high cost of replacement and the technical complexities of insulated assemblies, RIC Solutions recommends a formal site assessment. Our independent consultants provide a documented scope of work that ensures remediation is defensible, successful, and scientifically sound.