Ceiling is flaking off in my bathroom skylight!

It is common in a lot of bathrooms with poor ventilation. In this case, the moisture accumulated in the skylight and caused the existing texture to easily fall off in flakes. What I did was scrape most of the skylight (left) where the texture was coming off easily, then sanded most of the surrounding area so that there would be no blending issues. Once it was all nice and smooth, I prepped the area for texture and applied knockdown. (right)