Roofmaterial flickering effect - Need advice.

Greetings people of the Epic.

As i have encountered a peculiar effect with a roof material, i’m hoping for someones advice.
— I uploaded the picture to the thread.

The case is the tiled roofing starts to go haywire ( flicker ) if the camera is at a distance, but when it’s close, all looks fine.

Could it be that i need to add some LOD’s to the material?

Much thanks in advance

Taavet from Estonia.