Sandwich panels are divided into roof panels and wall panels based on the consideration of building structure and functional needs. The main reasons are as follows:

1. Structural carrying capacity: the roof and wall bear different pressures and loads on the building structure. The roof needs to withstand external loads such as rain, wind and possibly snow, so it needs to have high strength and waterproof properties. The wall mainly bears vertical loads and some horizontal forces, so different mechanical characteristics need to be considered in the design.

2. Waterproof requirements: Roof panels usually need to have excellent waterproof performance to ensure that the interior of the building is protected from the influence of rain infiltration. This requires the roof panels to have special coating or laminate materials to provide waterproof protection. The wall panels, on the other hand, do not require such special waterproofing.

3. Interface connection: There are different interface connection modes between the roof and the wall. Roof panels are usually bonded or clipped to ensure integrity under heavy loads or wind. The wall panels can be joined in simpler ways, such as bolted or welded.

4. Functional requirements: Roof panels and wall panels are also different in function. The roof panel needs to provide thermal insulation, waterproof, heat insulation and other characteristics, while the wall panel is mainly used to provide sound insulation, thermal insulation, fire protection, support and appearance decoration and other functions.

Yumisteel's sandwich panels are wide variety, suitable for various industrial buildings, public buildings, favored by owners and architects

EPS sandwich panels

Rockwool sandwich panels

Polyurethane sandwich panels

In summary, according to the different structural and functional needs of the building, sandwich panels are divided into roof panels and wall panels, and Yumisteel can provide the corresponding high-quality metal envelope solutions for the roof and wall to meet the various needs of construction projects.