Sorry the question may be a liitle long, but I want to be clear about what I am asking.Is not it that a Flat-floor, rather than a level floor is needed for tile/hardwood installation. A lot of times due to foundation shift, you could not make a level floor, or it would be out of sink with tha adjoining rooms. If I am right:Are there complication with with Tile/Hardwood over a flat, but not a level floor.To flatten out a floor, I am told to use a 6' straight edge and find the gaps. But, if I move this straight edge even a foot to the left, or right of where I started, the gaps under the straight edge would be moving elsewhere, the prior gaps would now be flat with the staight edge.I am all confused. Can you help please.
if your Flores are unlevel and loose you will need to fix it from underneath the house. this is not hard to do but it is hard work crawling around under the house . but a great workout for the abbs
I see no issue tiling a floor on a slant but yes its got to be relatively flat. The DIY floors such as laminate are a little forgiving with the correct underlay but I don't know how much you are measuring. vinyl tiles need it very flat. ceramic tiles can be made up with extra adhesive if you are good. You can buy self leveling compound that's a bit like very watery cement when mixed if you need to level a concrete floor.
You are correct in stating the a flat-floor is okay for tiling (or hardwood or whatever). What you have to be most concerned about is that each piece of any given floor covering lays flat and true on the substrate below. For tile as an example: perhaps an 12 x 12 tile would rock on a hump or bump, but 2 6 x 6's, would go up and over the irregularity laying tight against the floor, that would be fine. So the short answer is flat and true is more important than level.
Find the highest spot in your floor and start there. Tie a string to a nail at that spot. Draw the string across the room and see what the gaps look like. You can put screws into the floor even with the line at various spots to give yourself an idea of the 'topograghy' of the floor. You can also use these screws as points to level to with your 6 foot straight edge. Just move the leveler material until you see the tops of the screws. A floor needs to be flat for tile, it is nice to be level too. This is how we pour floors in old loft buildings when the floors have to be level up to 300 ft. But a transit and laser is used as well.
