3 Important Freezer Room Construction Considerations: Flooring, Walls and Roofing

Eugene Vargas

Whether you're storing food or medicine, the contents of your freezer room must always maintain the proper temperature. Even a momentary lapse in temperature control can completely ruin the content, posing health hazards and even financial losses. That's why constructing a freezer room that works without fail is a complex challenge that requires careful consideration. 

To ensure your freezer room does its job without interruptions, you'll need to keep these three floor, wall and roofing considerations in mind.

Your floor needs to be vented

Every surface in your freezer room needs to be constructed with temperature control in mind -- even the flooring. However, rather than keeping your floors cold, you need to think about keeping them warm. 

Your freezer floors need to be either vented or heated to prevent the soil under the foundation from freezing. If the soil reaches sub-zero temperatures, the integrity of your entire freezer room building will be compromised, and you run the risk of severe structural damage or even collapse.

You can vent the flooring with air ducts, or you can keep it warm with electric underfloor heating. The option you choose will likely be based on the rest of your freezer room materials, along with the temperature requirements of your local soil.

Freezer rooms in general buildings need more insulation

If you're constructing a separate building filled with freezer rooms, each room will help its neighbouring rooms stay cool with fairly minimal insulation. However, if your freezer room will form part of a larger building (for example, a room in a warehouse or distribution centre), you'll need more insulation between each room. 

Without enough insulation, heat from your general use spaces will radiate into your freezer room, which means you'll need to run even higher cooling power to the room to keep the temperature optimal.

Spray foam is an ideal insulation option for freezer rooms like this because it can expand to fill any size of gap. It's also relatively affordable, which means you can up your insulation levels without breaking your construction budget.

You may need separate roofing

Another consideration for freezer rooms in general-use buildings is roofing. If your building has a hardy metal roof as many warehouses do, you may need to reconstruct the roof area over your freezer room with a different type of material.

Metal is a conducive material, which means it can transfer heat from one area to another. Plus, hot air rises, which means the roofing can often be warmer than the room underneath. 

As with wall insulation, separating the roofs ensures that the heat from your warmer rooms doesn't spread to your freezer room and raise the inner temperature. Ceramic or terracotta tiles are a good low-conductivity option to consider.

For more information, reach out to a freezer room construction service near you.