What are the types of roof panels

Roof panel classification: according to the sandwich material, it can be divided into polyurethane roof panel, rock wool roof panel and polyurethane rock wool roof panel. As the name implies, polyurethane roof panel means that the sandwich material of the whole panel is polyurethane foam, the sandwich material of rock wool roof panel is rock wool, and the sandwich material of polyurethane rock wool roof panel is rock wool, with polyurethane side seals on both sides. According to the connection mode, it can be divided into concealed nailed roof and open nailed roof. When installing and overlapping, the nails will be outside. We usually call it exposed nail type. If the nail does not leak out, it is called hidden.
1. The overlapping method of the three corrugated roof slabs of the concealed nail type roof slab is the concealed nail type. The concealed roof panel is connected by concealed nails and concealed screws. Panels overlap closely. Unique waterproof groove design can effectively prevent rainwater from seeping into and avoid cold bridges; The 40mm wave crest height design improves the bearing capacity of the roof panel, reduces the use of roof purlins, improves the bearing capacity, and has the function of balancing water flow. While ensuring the thermal insulation effect of buildings, it effectively reduces the construction cost of customers, and has the characteristics of energy conservation, thermal insulation, fire prevention, airtight sound insulation, waterproof and rust-proof, beautiful and economic.
2. The overlapping method of exposed nail type four-corrugated roof panel is open nail overlapping. The four-corrugated overlapping roof panel has corrosion resistance. Aluminum foil can be used for the inner panel instead of color steel plate to improve the high temperature and corrosion resistance of the product. The board is solid, with four waves, which increases the firmness of the board. Reasonable grinding, simple and reasonable bevel design for grinding small edges. Beautiful economy, beautiful appearance, rich color; Reduce material loss. The construction speed is fast, the lap joint design is simple, and the construction is convenient.
The corrugated design of the roof panel is not only beautiful, but also can distinguish the roof panel from the wall panel. The unique corrugated design can also drain rainwater and prevent water accumulation in the roof area. Fire resistance of polyurethane sandwich panel: excellent fire resistance. Polyurethane materials can meet the higher fire resistance requirements of building thermal insulation materials and effectively prevent the spread of fire, i.e. B1 or B2 flame retardant standards.
Most of the roofs of the workshops use polyurethane roof panels, because the polyurethane roof panels have good thermal insulation performance; The thermal insulation performance of pure polyurethane is higher than that of polyurethane edge sealing, and the fire resistance of polyurethane edge sealing is higher than that of pure polyurethane composite plate. Polyurethane sandwich panel is a commonly used energy-saving material in current projects.
Due to the beautiful appearance and good overall effect of polyurethane sandwich panel, it integrates load-bearing, thermal insulation, fire prevention and waterproof, and does not need secondary decoration. Quick and convenient installation, short construction period and good comprehensive benefits. It has the advantage of good cost performance. It is a widely used panel.