Long story short – Yes, your shed needs a gutter. It is not only important for your shed, but also its surrounding area. Keeping water away from your shed and its surrounding is essential. Moreover, if you live in an area that gets medium to heavy rainfall, a gutter for your shed is imperative.
Do I need guttering on my shed?
Does my shed require guttering? The easy answer is no, but as with most things shed related, there is more to it than that. ... A breeze may blow the rain on to the sides of the shed as it falls off the eaves. The result is that the shed sides and especially the lower half of the sides may get wet.
Why put guttering on a shed?
When building a shed, it is important to have functional guttering systems in order to maximise the lifespan of the shed. When guttering is installed, it prevents water from running down the sides of a building, which can reduce the strength and stability of the shed over time.