sandwich sheet roof supplier

Good Quality Control Sandwich panel is the best choice for factories and warehouses in many industries. The panel is combined by two metal sheets with rock wool or eps/pu, pir foam in the middle. The production uses high-pressure combination process that makes panels strong enough for heavy industrial use. We have a strict testing of each panel before packing and loading.   Good Fire-Proof Performance Rock wool sandwich panel has a very good fire proof performance for industrial buildings. With 50mm thickness rock wool core, it will have 60 minutes of fireproof time. While the thickness increases to 100mm, and you get 120 minutes of fireproof time. This kind of sandwich panel will give people enough time to escape while on a fire.   Good Noise Control There is lots of loud machinery and equipment noise at some Industrial sites. As professional acoustic sandwich panel supplier, Propanel’s rock wool sandwich panels can keep down noise levels obviously. Rock wool noise-absorbing sandwich panel can effectively absorb noise and provide workers with a healthier working environment.   Energy-saving and Cost-saving  Although the initial cost may seem high, sandwich panel saves money in the long run. It’s insulation advantages reduce energy costs. The panel has anti-rust, anti-mold, and anti-pest performance with only common treatment. Most panels have 20 to 30 years life time and only needs basic cleaning work. Quick installation of less construction work also saves money for the project.

Sandwich panels can be customized for design and size to meet exact project specs for sure.    Common sandwich panel’s thickness varies from 30mm to 300mm, and lengths from 400mm to 12000mm. Factories use automated cutting for precision during production. Quality checks test thickness fittings and core density to ensure standards. While the core materials of sandwich panel also allow custom options: EPS for light weight, rock wool/glass wool for sound control and fire safety, and PU/PIR for better insulation. As professional rock wool panel china manufacturer as well as china cold storage panel manufacturer—PROPANEL, is engaged to give the best products to customer.   The metal surface layers include steel sheet, aluminum plate, or stainless-steel sheet... Inspections verify material bonds and fire ratings with lab tests.   The paint types of metal surface offer customization: PE for basic protection, HDP for higher durability, SMP for higher weather resistance, and PVDF for longer color life. Panels go through roller coating in production for even finish. This step follows strict color matching. Final quality detection uses visual and machine scans to confirm paint adhesion and thickness.   Special shapes sandwich panels like triangles or circles satisfy unique needs. Molds shape panels during manufacturing for custom fits. These handles curved or angled designs. Production ends with load tests and seal checks to confirm strength. Such special quality control ensures panels perform in all kinds of buildings’ roofs or walls.