EPS sandwich panel manufacturer

Sandwich panels, used for walls and roofs, are widely used in various steel structure factories, large warehouses, clean rooms, logistics warehousing, and cold storage facilities due to their excellent thermal insulation performance, high strength, good waterproof performance, light weight, easy installation, and short construction period. The significant advantages of sandwich panels are as follows:   1. Excellent thermal insulation performance: Sandwich panels typically use EPS, rock wool, and polyurethane as insulation core materials, providing excellent insulation performance without the need for additional insulation layers;   2. High structural strength, wind resistance, and strong corrosion resistance: Sandwich panels use color-coated galvanized steel sheets as the base material, resulting in high structural strength and good wind resistance. The surface can be coated with highly weather-resistant and fluorocarbon coatings, offering good corrosion resistance and aging resistance;   3. Excellent sound insulation and fire resistance: Different sandwich panel core materials can be selected to meet different application requirements. For example, large logistics warehouses can choose Class A fire-resistant rock wool core materials; large computer rooms can choose glass wool core materials with good sound insulation; and cold storage can choose polyurethane core materials with better thermal insulation performance.   4. Good sealing and waterproofing: Sandwich panels are generally sealed with tongue and groove joints and sealant, resulting in good waterproofing performance.   5. Lightweight, quick construction, and short construction period: Compared with traditional wall panels, sandwich panels are lighter and suitable for light steel structures and roof and wall renovations. They can be directly assembled on-site, simplifying construction, shortening the construction period, and greatly reducing labor costs.   6. Beautiful appearance and high cost performance: The surface of sandwich panels is made of color steel plate, which can be designed and selected in different colors, making them beautiful and elegant. Furthermore, color steel plates have a long service life, are easy to maintain, and offer high overall cost performance.  

There are many types of sandwich panels, and common mistakes when choosing industrial sandwich panels include:   1. Focusing solely on price and selecting panels incompatible with the core material. EPS sandwich panels are the cheapest and generally only used in ordinary factories. PU/PIR sandwich panels are chosen for cold storage, while rock wool sandwich panels are chosen for large logistics warehouses.   2.Confusing roofing and wall panels. Wall panels cannot be used directly for roofing. Roofing requires high-strength roofing panels with corrugated peaks to withstand strong winds and rain/snow.   3.Ignoring the density of the core material. Generally, EPS density ranges from 10kg/m³ to 20kg/m³, which can be selected based on different insulation requirements; Rock wool density ranges from 80kg/m³ to 140kg/m³. It is generally not recommended to use less than 90kg/m³ for walls and less than 100kg/m³ for roofs.   4.     Ignoring the thickness requirements of the sandwich panel steel plate The thickness of the top and bottom plates of the sandwich panel can be determined according to the strength requirements of the building. Common thicknesses are 0.4mm to 0.8mm.   5.Ignoring the zinc coating thickness requirements of the sandwich panel Generally, the thicker the zinc coating, the better the corrosion resistance. Industrial buildings typically require AZ100 or AZ150.   6.Ignoring the color coating requirements of the sandwich panel steel plate PE coating can be used in ordinary environments, while PVDF coating can be used in coastal or highly corrosive environments.   7.Incorrect calculation of sandwich panel length, leading to excessive splicing It is recommended to provide CAD drawings. Our technical engineers will calculate the accurate number and length of panels to avoid errors.   8.Ignoring panel load-bearing capacity and span The panel thickness needs to be calculated based on the purlin spacing, load, and wind force of the industrial building to avoid placing orders blindly.  

The fastest construction time for a standard single-story warehouse using sandwich panels can be reduced to 6 to 14 days. The higher the degree of prefabrication, the simpler the structure, and the more experienced the construction team, the shorter the construction period will be. Conversely, the construction period will be longer accordingly.   Sandwich panels are custom-made products according to the building design dimensions. On-site construction only requires splicing and installation. Compared to traditional concrete structures, this eliminates processes such as masonry and cementing, saving at least 40% of the construction time.   Furthermore, simpler building structures result in faster construction. For example, single-story warehouses without complex spans are the fastest to construct; while multi-story warehouses and workshops, or those requiring provisions for crane beams, will have a construction period of 15-25 days due to the need for additional steel frame structures.   A well-organized and skilled professional construction team can typically install at least 120 square meters of sandwich panels per day, further shortening the construction cycle.

Fire-resistant sandwich panels are composed of two layers of outer panels (usually color-coated galvanized steel, aluminum, or stainless steel) and a layer of fire-resistant core material (such as rock wool, glass wool, or fire-resistant polyurethane) bonded together with a high-strength adhesive.   The outer panels provide strength to the sandwich panel, preventing deformation and collapse at high temperatures. They also protect the core material from direct contact with flames or high-temperature smoke, thus acting as a firebreak.   The core materials, such as rock wool, glass wool, and fire-resistant polyurethane, are inherently non-combustible or flame-retardant. They do not produce open flames or release large amounts of flammable gases when exposed to high temperatures, preventing flames from penetrating the panel and thus preventing the spread of fire.   Different fire-resistant core materials can be selected based on different building fire protection requirements. For industrial buildings (factories, warehouses, etc.), civil buildings (residential buildings, office buildings, etc.), and public buildings (hospitals, shopping malls, amusement parks, etc.), non-combustible rock wool or glass wool sandwich panels should be used. For temporary buildings, polyurethane sandwich panels with flame-retardant properties or EPS sandwich panels with a B1 rating can be selected.