We have a 20 year old 3/4" engineered floor in our 30x45" living room. It faces east and gets lots of sun year round. This has unevenly bleached out the floor in several areas. The areas covered by rugs retain their original color while the sun exposed areas are 3-4 shades lighter. In addition, several areas have water stains, the result of putting plastic sheeting under plants, and water seeping through the plastic. We have tried sanding it with disappointing results. We have been told that engineered floors cannot be sanded. Because the damage is in several large areas, I am thinking of putting new hardwood floors on top of my existing engineered floor. All the materials used in this house are upscale and we are planning on selling the house when the market picks up. I am hesitant to put floating floors as I was told this might bring the value of the house down. Besides the height of the new floor, is there anything else I need to be concerned about? Several internet sites say it is ok to put new flooring on top of old, but nothing is specific for engineered floors. Do any of you have other ideas to fix my floor effectively but economically? Right now the color variation on the floor is somewhat mute due to the four rugs I have on the floor, but once I take out them up they will be very noticeable. Since this is a unique house, the house may not sell for another 5 years and I don't want the same bleached effect again. Please advise on the best possible move for my floor. Thanks to all in advance.
Some engineered wood can be sanded. Most don't have a thick enough wear layer. If you know the brand contact the manufacturer. Do not install hardwood over hardwood. The nails are 2", but they are driven at an angle and will not penitrate the subfloor enough. It is not hard to pull up engineered hardwood.