Here is the situation. I leveled out or attempted to level out my cottage slab.
I used 2x4s as sleepers with 3/4 ply.
The individual are mostly level however I discovered I should have use a 7ft level instead of a 4. As the entire floor has a gradual slope
Can I correct this with floor leveling compound? I want to install hardwood.
I am guessing not... I'd figure maybe some felt paper and then pour... still no?