Rigid Insulation Under Wood Floor - One question I've been asked time and again over the years working in the wood flooring industry is; can my old wooden floor that is fitted be sanded and refurbished? Most people realize things to do having a fitted wooden floor is a little more confusing, although that first floor boards or parquet floors could be sanded back to create a finished floor that is lovely.
Firstly you have to discover what kind of floor you've got, & most importantly that it's wood. I'm afraid the sole alternative is to replace it in case your floor is a wood effect laminate then.
There are two types of wooden flooring that is fitted; the good thing and solid and engineered wood flooring is, both may be sanded and refurbished to look as new as the day. Engineered wooden flooring will often be mistaken for laminate as it has a similar construction. Engineered wood flooring includes a thin layer of real wood, usually between 3-5 mm bonded to some base of either MDF or ply board, because of its construction and that it's fitted together with a tongue and groove, it also remains really flat.
Solid wood flooring is more expensive to make and will necessarily cost more to purchase, but in my opinion, it isn't as good a product as engineered as it's more vulnerable to warping.