What must be done to avoid damaging the transparencies?

To avoid damaging transparencies, it's crucial to prevent any physical stress to the material, which can happen if objects are placed directly on the canopy glass. Placing objects on the canopy can introduce pressure points or scratches that compromise the integrity and clarity of the transparencies. Maintaining an unobstructed and clean space around these components is vital for their longevity and functionality.

While using a protective cover, regular cleaning with a special solution, and avoiding exposure to sunlight are all important practices in preserving the integrity of transparencies, they do not directly address the immediate physical risks posed by placing objects on the glass. These other actions can complement proper care but keeping the canopy glass clear of any items is a fundamental step in avoiding damage.