Does piling things on the roof of your house affect Feng Shui?

Does piling things on the roof of your house affect Feng Shui? Personally, I don't think putting things on my roof will affect my feng shui, but putting too many sundries will affect some of my environment and hygiene. After all, sometimes putting too many sundries on the roof will cause some bad things, such as some rats and cockroaches, and even the things piled up on the roof of your own house should be neat, so the impact on Feng Shui is definitely not at all. Feng shui itself is a trustworthy thing.