On the floor of the old solid wood composite floor is no problem, just add a certain thickness, may need to change the door, and on the threshold filter arranged be close. Need to deal with the old floor, up to flatten (milling, planing, chisel, demolition reloading, in many ways, the defect is large) to be filled.
In fact, the solid wood floor can be refurbished, as long as the demolition of the bad part of the re installation, and then the overall grinding, scraping putty seam, brush floor paint protection. To do so out of the floor and even some aspects take on an altogether new aspect, but also better than the new floor, which is an overall effect, put on the edge of the elastic rubber seal, the floor even afraid of water. But also to avoid the pollution of paint, had to use expensive water-based floor paint
The thickness of the composite floor is to increase the thickness, no need to add moisture cotton, direct suspension on the line, the nails are OK, the glue is also ok.Of course, if the old floor is very rotten, or termites, then the demolition of the redo it! It is best to use cement leveling, or with a splint, do not use a large core plate, the strength of the core plate is not enough to hold the nail force is not.
