Our attached garage was added many years after my house's 1959 construction by basically walling in a pre-existing carport. The floor, therefore, is made out of several concrete slabs and part of what used to be an outdoor walkway.
We live in Alaska and the slabs do not appear to have a frost footing (I think that it what its called), so they have warped, settled, and tilted over the years. In a couple spots, the edge of one slab is an inch or two higher than that of the adjoining slab and part of the floor is pretty heavily sloped.
Basically, its a mess.
The garage also houses our laundry room, a workshop, and a mudroom and we'd like these to be more finished, including adding vinyl wood-look flooring.
My question is: what is the best way to do this?
I am trying to decide if click-and-lock vinyl plank or vinyl sheeting will be easier and cheaper. Also: can we level the concrete by adding underlayment or do we need to do a combination of grinding and self-leveling compound? How important is it that the concrete be very level in order to add vinyl sheeting?