I have a 1 car garage shed with gutters around the roof. There are two downspouts, both on the same side of the structure (there is an alley on one side so both drain into the alley). I was up on the roof with a hose trying to find a roof leak when I noticed that the water was just accumulating (probably 3/4" or so) in the gutters but not flowing to the back of the shed to the downspouts.

Is this ok/normal? Presumably with enough water it would make its way back to the downspouts? Is it possible to increase the pitch of the side gutters so that the water flows toward the back even with a little bit of water in the gutter?


The gutter seem to be sensibly straight/in good shape. The standing water is in the gutter shown, and the downspouts are on the side of the shed to the right of this picture: gutter straightness

Here is the water: enter image description here

Can I bend the brackets near the opposite corner a bit to make the gutter slope toward the downspouts?

  • Are the gutters sagging in the middle? That seems like a lot of water to be sitting there. – JACK Aug 10 '19 at 18:02
  • @JACK I added some pictures to the post. – David Doria Aug 10 '19 at 18:51
  • The gutter is not sloped properly towards the down spout or the down spout is blocked some how – Kris Aug 10 '19 at 20:19
  • Is the water level the same across the entire front of the shed? If so, you'll have to re slope the gutter on the side of the spout. – JACK Aug 10 '19 at 21:22
  • @Kris the water is not even reaching the downspouts, so they aren't the culprit :) – David Doria Aug 11 '19 at 1:38

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