As mentioned earlier in this section, preparing for new flooring is a job defined by what flooring you’re replacing as well as what you’re installing. For example, installing carpeting over sheet vinyl is relatively easy because the vinyl is a smooth surface and carpeting doesn’t telegraph. However, installing sheet vinyl flooring over a rough and damaged vinyl or old linoleum floor is more of a challenge because every lump and bump in the old floor will show up in the new one. That’s why, for many installations, it’s wiser to remove old flooring and work with the subfloor as a base.
Repairing the Subfloor