The answer to 'lifespan of skylight' is that the average lifespan of a skylight is 15-25 years, depending on the quality of the materials and installation. Skylights are exposed to the elements and can be susceptible to leaks, cracks, and other damage over time. With proper maintenance and occasional repairs, a well-installed skylight can last up to 25 years, but many homeowners replace them after 15-20 years as they start to show signs of wear.
The lifespan of a skylight can be extended by regularly inspecting it for any issues, cleaning the glass, and making repairs as needed. Factors like the climate, amount of use, and quality of the original installation can also impact how long a skylight lasts before needing replacement.