I have a basement with about 780 sq ft. and would like to float some engineered hardwood throughout the basement. I have done my research and I know I can float the engineered wood over the preexisting tile. The only problem that i have is there is a small region by my stairs and door where the floor tile dips. What would be the best option in getting the floor level, without having to take up the whole floor? Someone please help me.
If it isn't too severe you can fill it with strips of #30 roofing felt to bring it up to level. That'll solidify it and it won't slip around on you. You can also use patching or leveling compounds for something more permanent.