PPGI roof sheet is a new type of panel, which is considered to be the most ideal material for modern buildings and has a relatively long life. There are many precautions for installing color-coated board roofs as bottom plates. Professional construction masters are required to install. Aluminum-magnesium-manganese roofing panels are made of aluminum-magnesium-manganese plates. This type of material will not corrode even if it is used for a long time. Under normal conditions, it can be used for forty years, so as not to affect the future use effect. The specific installation precautions are as follows.