Introduction to Metal Roof Panel Types

　　Metal roofingThe thickness generally ranges from 0.4 to 1.5 mm, and the panel surface usually has a coating. Due to differences in material and coating quality, some panels can have a lifespan of over 50 years. The panels come in various shapes, some are composite panels, which have insulation layers sandwiched between two layers of metal, while others are single panels. During construction, some panels are processed in the factory and assembled on-site, while others are processed on-site according to the roofing project requirements. Some insulation layers are factory-composite, while others can be made on-site. Therefore, the forms of metal roofing are diverse, ranging from large public buildings to factories, warehouses, and residences. As a result, regulations specify that the applicable range for metal panel roofs is for waterproof levels I to III.

　　Metal roofingWhat are the types of panels? Let's take a brief look together.

　　The design of metal roofing features rolled-up sealed joints, which can be matched with on-site production of roof panels of the same length. After installation, there are no connections or exposed screws on the roof. In addition to ensuring the aesthetic integrity of the building's roof, it also has excellent waterproof, seepage-proof, and snow-proof functions.

　　The design of the I-beam panel has rib heights of 25/32/38/65 mm, with a flat panel surface. Generally, the panel with a rib height of 65 mm has a 5 mm rib in the middle of the panel, providing a drainage section that effectively solves the water accumulation and drainage problems of low-slope roofs (greater than 1.5° to 3°).

　　The design of the 65-420R and 75-400R panels particularly strengthens the reinforcing ribs on the panel surface to increase structural strength and provide a stronger line texture for the building's appearance. The design of the 6-300/400/500 panels is flexible and highly moldable, suitable for architectural designs with both large and small inner and outer arcs; the 75-380/480 panel design not only retains moldability but also adds rib grooves up to 75 mm, forming a double-layer roofing system when combined with a thick base plate, making it more suitable for coastal areas prone to typhoons and heavy rain.

　　The 80-400/420 vertical double-lock edge features a 360-degree double-fold interlocking method between the roof panel and the fixed base, with the panel edges having foldable sealed vertical seams. This vertical seam completely grips the fixed base, forming a continuous weather-resistant roof that essentially prevents water from entering the building. The design of the fixed base takes into account the effects of thermal displacement, allowing the panels to have relative displacement in the length direction, eliminating the stress caused by roof expansion.

　　What materials are used for metal roofing? Let's take a brief look together.

　　Metal roofing is entirely made from imported AA3004 series aluminum-magnesium-manganese alloy coils specifically for roofing and exterior wall structures; it can also be customized according to the project's uniqueness with aluminum-magnesium-manganese alloy 3004, stainless steel 304/316, copper, or construction-grade pure titanium metal. Roofing systems made from specialized aluminum alloys can have a lifespan equal to that of the building's main structure.

　　Aluminum-magnesium-manganese alloy coils can also be paired with PVDF/PVF2 polyvinylidene fluoride/fluorocarbon resin color-coated baking paint systems imported from the United States or Australia, applicable to industrial and civil buildings, with the colored coating's lifespan reaching 15-20 years (depending on atmospheric environmental conditions).