** For the pragmatic among you:
My initial hope was to simply ignore the slope. Although it would be nice to have it level too, I was more concerned with dips and valleys. If I am willing to put up with a slightly uneven floor, I assume that the primary drawback is 'bounce' in the areas of the floor over a valley. I have also seen quite a variance in 'allowable' flatness variations. I recognize that a 'proper' floor should be something like < 1/8" over 8 feet, but have also seen posts that pragmatically indicate that even dips of 1/8" over a couple of feet may be acceptable, particularly if one can secure down the middle of these sections to make them less mobile. Also, I was wondering if realistically one can get away with less evenness in the direction perpindicular to the direction that you are laying the floor. I realize that this is all a little hacked, and not officially recommended, but would appreciate any feedback on these ideas - including future problems that any of these 'hack solutions' may cause. (I don't mind losing out on the aesthetics of a perfect floor, but want to clearly understand any 'flaws' that I may decide to live with).
** For those who maintain a 'do it properly attitude', perhaps you could comment on the options below:
By the sounds of it, one option is to fill the room with a layer of sand screed until it is close to level, and then (optionally ?) use a self-leveller to make it even truer. (this would bring the concrete slab above the low end of the drywall - I assume that I would leave a 3/4 inch gap or so between the edge of the new concrete and the wall - is this ok?).
I was wondering, however, if it would be a little easier (or advisable) to simply toss down some plywood and shim it where necessary to achieve a fairly even surface. This would also allow me to secure down any sections that may still 'bounce' a little if the end job is not perfect.
The dip also rises again as the floor goes into the bathroom (where I was hoping to lay tile). This may also affect the decision above...(?)
Thanks very much,