Cold Storage Panel Thickness: 100mm vs 150mm – Which One Do You Actually Need?
Many cold storage investors instinctively opt for thicker 150mm PUR insulation panels at the very beginning, assuming thicker boards always equal better performance. However, this one-size-fits-all mindset often leads to unnecessary overspending on material costs, and thicker panels are not always the most cost-effective choice for your project. The ideal cold room panel thickness hinges entirely on your target internal temperature and operational storage scenarios, rather than blindly chasing maximum thickness.
For fresh-keeping Cold Rooms operating at temperatures above -8°C, standard 100mm PUR sandwich insulation panels deliver sufficient thermal insulation performance to meet daily operational demands. Our self-produced 100mm PUR panels feature a core density of 40±2 kg/m³ and thermal conductivity as low as ≤0.020 W/(m·k), effectively blocking external heat infiltration and maintaining a stable mild low-temperature environment for fruits, vegetables, fresh produce and dairy preservation. This thickness balances upfront construction investment and long-term energy consumption perfectly for mid-temperature fresh storage projects, eliminating redundant material expenses.
In contrast, low-temperature freezing warehouses designed to maintain a constant temperature range of -18°C to -25°C require 150mm thick PUR insulation panels as the standard configuration. Deep-freeze environments face far more intense heat exchange between the cold storage interior and ambient surroundings. The extra 50mm polyurethane core layer of 150mm panels drastically reduces cold loss, stabilizes ultra-low indoor temperatures, and prevents frequent startup of refrigeration compressors caused by excessive heat penetration. This thickness is non-negotiable for frozen meat, seafood, quick-freezing processing and long-term frozen inventory storage facilities.
It is critical to clarify that cold storage insulation panels do not follow the rule of “the thicker, the better”. Blindly installing 150mm panels for mild-temperature fresh warehouses will raise your initial construction budget without bringing proportional operational benefits. Meanwhile, skimping on thickness by using 100mm panels for deep-freeze rooms will trigger soaring monthly electricity bills, unstable temperature fluctuations and shortened service life of Refrigeration Equipment.
A well-matched panel thickness creates remarkable long-term energy savings. Even a 50mm difference in insulation thickness can cut annual refrigeration power expenses by thousands of US dollars over the warehouse’s service life. Proper insulation thickness minimizes continuous cold leakage, lightens the running load of your cooling system, and slashes recurring energy costs year after year.
As a one-stop source manufacturer, YSHT specializing in custom PUR & PIR cold storage panels and full cold chain construction solutions, we provide professional thermal insulation calculation services tailored to your project parameters. Share your target cold room temperature, warehouse dimensions, local ambient climate and storage usage with our engineering team, and we will calculate the most cost-efficient panel thickness, specify matching panel specifications, and deliver a customized insulation plan that balances upfront cost and long-term energy savings.
Whether you are building a fresh produce preservation warehouse, constant-temperature logistics cold room or deep-freeze processing plant, avoid the common mistake of over-specifying panel thickness. Contact our technical team today to get a free, accurate thermal performance calculation for your cold storage project.