15Cm Cold Room Poly Wall Panels by Tunelgroup are advanced architectural components engineered to provide superior thermal and acoustic insulation for cold storage environments. Comprising three layers—external and internal galvanized or aluminum sheets sandwiching a high-density polyurethane foam core—these panels create a highly efficient barrier against heat, moisture, and sound. Available in various thicknesses and customizable configurations, Tunel Group’s sandwich panels cater to diverse industrial needs, ensuring optimal performance and longevity.