First of all, the aluminum sheet itself does not have the function of heat preservation. The heat insulation aluminum sheet refers not only to the aluminum sheet, but also includes a layer of insulation layer. The insulation layer is directly adhered to the aluminum sheet, and is integrated with the aluminum sheet, and is collectively referred to as the aluminum sheet. For the insulation aluminum panels. The insulation layer is generally galvanized sheet or calcium silicate board, plastic polystyrene board (XPS board), expanded polystyrene board (EPS board), semi-hard ore (rock) cotton board, foam glass insulation board, composite silicate Hard insulation board, rubber powder polystyrene granule insulation mortar, etc. The thickness of the application can be determined by calculating the heat transfer coefficient of the external wall according to the building energy-saving requirements of the area and the calculated thermal conductivity of the material.
The general insulation aluminum sheet not only has the function of heat preservation, but also sound insulation, fireproof, moisture proof and anti-aging. The thermal insulation aluminum sheet has three layers, the middle layer is an aluminum sheet, the outer layer is a protective layer, and the inner measurement is a layer of insulation layer. The protective layer is mainly used for moisture resistance, anti-aging and aesthetics. The insulation layer mainly plays the role of heat preservation, fire prevention and sound insulation, and the middle aluminum sheet layer plays a supporting role, because the aluminum sheet has a certain hardness, small quality and good mechanical properties. It is widely used because of its resistance to wind and other characteristics.
