planting bushes on a roof

I don't know what thread to ask this question... I hope maybe here?

Can we plant some bushes on a roof of a wood shed? **If so, is there a type of design for the roof that we should build so it can hold the weight of soil/bushes/heaviness of rain water/snow? we are zone 3.
We are just starting building now and the posts are in the ground.

The shed is between us and the neighbors. I would like to block out the neighbor's new 4-story mansion/hotel next to our small log cabin/farm. I was hoping the bushes would help. We can't put trees behind the shed, or it would limit access to the shed for firewood.

any advice appreciated. thanks!

Roof is wet, maybe some bamboo? Or a kiwi or grapes on a trellis instead? A shrub may not be the best idea. Why bush? Are you looking for an evergreen bush, so it hides the view in winter? A thick screen of hops could do the trick, without the expensive build?

The idea of the kiwi or other climber is far easier to realize than bushes planted on the roof. You could make a traditional green roof but this is low growing plants. But roots of bushes will grow through almost everything and it gets heavy very easily.

we are already building the shed, but it's not high enough to bloc out the neighbors view, so i was trying to brainstorm how to get some extra height with a environmental looking idea. but after more thought, the bushes may be too heavy with the soil. so still brainstorming.

Then simply put up some sort of a grid over the roof or alongside and let something grow, which gives you fruit and suits your climate.