PU sandwich panel supplier

Commercial projects typically encompass commercial factory buildings, cold storage facilities, shopping centers, logistics warehouses, office building envelopes, exhibition centers, and supermarkets. Selection requires a comprehensive evaluation of factors such as the sandwich panel's fire resistance, thermal insulation performance, operating environment, price, and lifecycle.   Fire safety requirements dictate the choice of materials: Class A non-combustible rock wool or glass wool panels are mandatory for high-occupancy areas (e.g., shopping centers, supermarkets) and high-rise commercial buildings (e.g., office buildings, exhibition centers). For cold storage and temperature-controlled warehouses, Class B1 PIR panels are the preferred choice; the specific core material type and thickness should be determined based on the building's temperature control requirements.   Insulation core materials are selected based on application needs: Rock wool sandwich panels (density ≥100 kg/m³) offer Class A1 fire resistance and excellent sound insulation, making them suitable for shopping mall facades, industrial plants, and pharmaceutical clean rooms. PIR sandwich panels offer the lowest thermal conductivity and superior insulation performance; their closed-cell core structure provides strong moisture resistance, making them the top choice for cold storage and cold chain warehousing. Glass wool sandwich panels feature outstanding sound absorption, making them ideal for spaces requiring noise reduction, such as stadiums and equipment rooms. EPS sandwich panels are suitable only for low-fire-risk applications, such as temporary auxiliary warehouses. Polyurethane-edged rock wool insulation sandwich panels combine fire resistance with thermal insulation, making them a cost-effective choice suitable for most commercial factory buildings.   Panel facings and coatings are selected based on the operating environment: For standard environments, Al-Zn (AZ100 or AZ150) substrates with PE (polyester) coatings offer a service life of 15–20 years. For corrosive environments—such as coastal areas exposed to salt spray or chemical industrial parks—304 stainless steel substrates with PVDF (fluorocarbon) coatings ensure long-term weather resistance and a service life of 25–30 years.   Comprehensive cost considerations involve evaluating raw material costs: construction and labor expenses, and long-term energy consumption and maintenance costs. Although sandwich panels with high-performance insulation cores may have a slightly higher unit price, their rapid installation significantly reduces labor and time costs. Furthermore, they entail minimal maintenance expenses and substantially lower building energy consumption during operation, yielding significant long-term energy savings and achieving the best total lifecycle cost.  

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.

sandwich panels, such as polyurethane (PU) and rock wool sandwich panels, are transforming modern construction with their superior insulation, fire resistance, and eco-friendly properties. These versatile materials are ideal for walls, roofs, and cleanrooms, offering tailored solutions for diverse building needs.   Exceptional Thermal Insulation   PROPANEL's Polyurethane Pu sandwich panels deliver outstanding thermal performance. A 50mm PU panel matches the insulation of a 1720mm brick wall, significantly reducing energy costs. Its low thermal conductivity prevents heat loss and condensation, maximizing building efficiency. Similarly, rockwool panels, with their fine, flexible fibers, offer excellent insulation due to a low thermal conductivity coefficient. This ensures stable indoor temperatures, making both options perfect for energy-efficient structures like warehouses and cold storage units.   Superior Fire Resistance   Fire safety is critical in construction. PROPANEL's PU sandwich panels achieve a B1 fire rating with self-extinguishing properties, ensuring reliable protection. While Rock wool sandwich panels excel further, meeting the A-grade fire standard thanks to their hydrophobic rockwool core, which resists flames effectively. These fire-resistant qualities make both panel types suitable for high-safety environments like factories and cleanrooms.   Eco-Friendly and Sustainable Both PU and rock wool panels are environmentally friendly. Their easy installation and recyclability boost material reuse, reducing waste. By minimizing energy consumption through excellent insulation, these panels support green building practices, aligning with sustainable construction trends.   Versatile and Customizable   sandwich panels come in diverse types and designs, meeting varied aesthetic and functional needs. From sleek finishes to custom sizes, they cater to personalized requirements for projects like prefab houses and commercial buildings. This versatility enhances their appeal across industries.       Space-Saving Design   With ultra-low thermal conductivity, these panels achieve high insulation with minimal thickness, reducing wall dimensions and expanding usable interior space. This makes them ideal for modern architecture prioritizing efficiency and comfort.