The best way to install a piece of black fiberglass tape on a wall or ceiling involves preparing the surface, applying the tape, and securing it properly. First, clean the area thoroughly to remove dust and debris. Then, cut the fiberglass tape to the desired length. Apply a high-quality adhesive specifically designed for fiberglass to the back of the tape. Press the tape firmly onto the surface, starting from one end and smoothing it out to remove any air bubbles. Use a putty knife or your fingers to press firmly and evenly. Let the adhesive dry according to the manufacturer's instructions before handling or applying any weight to the tape.