Henan Gefan Building Materials Co., Ltd. , as a professional prefabricated steel building manufacturer specializing in warehouses, coal storage sheds, and industrial buildings, has developed a strictly sequential installation process—"wall panel → partition panel → ceiling panel → indoor insulated floor"—based on experience gained from multiple overseas projects. With strong execution capability and reliable quality, the company ensures that every step meets design expectations.
Process Sequence: A Systematic Approach from Enclosure to Floor Insulation
The installation of the cold storage insulation system begins with the wall panel. As the first barrier of the exterior envelope structure, the verticality and joint quality of the wall panels directly affect the reference accuracy of all subsequent procedures.
After the wall panels are installed, the partition panel installation begins. The partition panels not only serve to divide internal functional areas but also provide critical structural support for the ceiling system. Once the partition panels are fixed, the ceiling panel installation follows. A 2 cm gap is reserved between the ceiling panels and partition panels, and aluminum angle is used as the connecting component for fixation. The gap is then filled with sprayed polyurethane foam sealant to create an elastic seal. This design provides a buffer space for the thermal expansion and contraction of the ceiling panels under temperature variations, effectively preventing deformation or loosening of the panels.
The final step is the construction of the indoor insulated floor. XPS rigid foam boards are used for floor insulation, with a single-layer thickness of 5 cm and a total of three layers laid, achieving a total insulation thickness of 15 cm. During installation, a "staggered joint" technique is strictly followed—the joints of each layer are offset from those of the adjacent layers to eliminate continuous seams. This approach cuts off the vertical heat transfer path, ensuring continuity and uniformity of floor insulation.
Sealing and Buffer Zones: Key Details Determining Cold Storage Performance
Throughout the entire installation process, all panel joints must be sealed with sprayed polyurethane foam sealant. Polyurethane foam sealant offers excellent adhesion and a high closed-cell ratio, effectively preventing moisture infiltration and cold air leakage, thereby avoiding condensation, mold growth, and increased energy consumption.
The 2 cm gap reserved between the partition panels and ceiling panels, combined with the elastic filling of polyurethane foam sealant, forms a unique "flexible connection" structure. This structure not only accommodates structural deformation caused by temperature changes but also provides a cushioning effect during external vibrations, effectively protecting the integrity of the ceiling system.
Professional Assurance: Full-Chain Control from Materials to Construction
For cold storage projects in overseas markets, the integration of material quality and construction execution is the fundamental guarantee of project success. Henan Gefan Building Materials Co., Ltd. not only supplies prefabricated steel components and insulation panels that meet international standards but also integrates the above installation processes and quality control points into its technical guidance and on-site management systems, ensuring that every detail is strictly implemented. With strong execution capability and reliable product quality, the company has earned sustained trust in overseas markets.
As global cold chain logistics infrastructure continues to expand and industrial demands for energy efficiency and environmental protection grow, refined construction practices for cold storage projects are becoming an important dimension of industry competition. Only by respecting the logic of the construction sequence and strictly controlling detailed standards can the full performance potential of the cold storage envelope system be realized, creating sustainable value for clients.
