The answer to 'why is my skylight' is that there are several common causes for skylight issues, including leaks, condensation, and damage. Skylight leaks can be caused by cracks, gaps, or improper installation, leading to water damage. Condensation can build up inside the skylight, causing fogging or moisture issues. Over time, the skylight materials may degrade or become damaged, compromising the seal and functionality.
If you're experiencing skylight problems, it's important to identify the root cause and address it promptly to prevent further damage. While some minor skylight repairs may be suitable for DIY, it's generally recommended to call a professional roofing technician, especially for more complex issues or if the skylight needs to be replaced.