What is the sheet used for roofing made from? Why?

Hint: In building structures, roofing sheets are employed as envelopes. These are long-lasting and simple to installed.These are rust-resistant and require very little upkeep. Roofing sheets aren't all created equal, and some are better suited to certain tasks than others.

Complete answer:
Because aluminium is malleable (i.e., it can be hammered into sheets), it is used to produce roofing sheets. Aluminium roofing is a long-lasting, resilient, and lightweight alternative to other cladding materials, with the added benefit of being corrosion-free with low upkeep.
The usage of aluminium corrugated sheet metal in installations and buildings is becoming increasingly prevalent. Corrosion-resistant aluminium corrugated sheet can be used in practically any environment. Aluminium roofing sheets are resistant to organic compound gases and vapours, as well as chemicals like ammonia, carbon dioxide, and acids like hydrochloric acid, nitric acid, and sulphuric acid, even in highly corrosive industrial conditions. This corrosion-resistant characteristic ensures that the metal lasts a long time and maintains its appearance.
Aluminium corrugated sheet-gleam Aluminum's and brilliance brightens its surroundings, and it stays bright and brilliant for a long time because it doesn't stain, discolour, or decay. Aluminium corrugated sheets can be finished in a range of colours, textures, and finishes to preserve it and enhance its appearance.

Note:
Aluminium is malleable, which is one of its properties. It can be hammered into a shape without cracking or breaking if it is malleable. While this may appear to be a beneficial aspect of aluminium sheets, it may not be the case when it comes to safeguarding your home from the weather.
Any large objects that fall onto your aluminium roof, such as a limb during a storm, may leave a mark. The dent would detract from the roof's overall appeal. Furthermore, this can limit the efficiency of the water flow on the roof.