Metal Siding and Gutter Recycling
Some buildings have metal siding, soffit, fascia, and gutters. Up until about 40 years ago, most of those were manufactured from steel. Then aluminum became very popular, followed by vinyl.
If you have some of this material, first you can bang on it with something. If it makes a metallic sound, it is not vinyl and the next step is to check it with a magnet. The magnet will stick to steel, but not aluminum.
Sometimes siding has insulation on the back – after stripping it off, you will have siding that is ready for recycling.