Yes, many types of attic insulation can be installed as a DIY project, especially if you're using rolls or batts of fiberglass or mineral wool insulation. Here's a basic step-by-step guide: Measure your attic's dimension to determine how much insulation you'll need. Purchase the necessary amount of insulation batting or rolls. Put on personal protective equipment, like gloves, a mask, and safety goggles. Start at the far end of the attic and unroll or place the batts of insulation between the joists, ensuring the paper or foil vapor barrier is facing downward towards the living space. If additional layers are needed, lay these perpendicular to the first layer without a vapor barrier. Cut around obstructions as necessary and ensure coverage is evenly distributed and there are no gaps. However, for other types of insulation such as spray foam or blown-in insulation, professional installation is generally recommended. These require specialized equipment and experience to ensure a safe and effective installation. Always remember that when dealing with insulation, safety comes first. Be sure to use the right protective equipment and take extra care if your attic has wiring or other hazards.