This is an old post however it appears that me from three years ago forgot to mention that this issue happened on.
Skyrim se roofs flickering.
The problem seems to stem from skyrimse wanting to run on your intel card rather than your nvidia processor.
Weird black flickering on distant objects just watch this video.
Delete your skyrimprefs ini and your skyrim ini files.
Then boot the skyrim launcher.
All fixes where found by various people on the forum of the mod no snow under the roof by prometheus.
There are two ways to get around this try fix 1 and if it dosnt seem to match up to what you are seeing try fix 2 a little bit longer but has the same results edit.
If neither of these fix your issue.
I take no credit what so ever in creating the mod no snow under the roof or finding the solution for those particular bugs.
Boot the game and confirm that you are not seeing the flasing issue any longer.
It fixes when i get close and i fully render.
This will fix flickering water textures and objects flying off of shelves.
Boot the launcher and set your graphics options to your prefference.
Switched to medium from high and the flickering is all but gone.
The elder scrolls v.
Skyrim for some reason cannot handle anything above 60fps.
Black textures with dynamic lighting bug.
I thought they fixed that.
This drove me mad and i.
And change all graphics settings to low.