The answer to 'why is my skylight damaged' is that skylights can become damaged for several common reasons, including age, weathering, improper installation, and physical damage. Some common symptoms of a damaged skylight include leaks, cracks, fogging, or warping of the skylight material.
Skylights are exposed to the elements and can deteriorate over time due to UV exposure, temperature changes, and weather conditions. Improper installation, such as not sealing the skylight properly, can also lead to leaks and damage. Physical damage like falling debris or hail can also crack or break the skylight.