Renewable can be referred to as a resource that can be replenished or reformed either naturally or by systemic recycling of used resources. Renewable is resource or source of energy that is replaced naturally or controlled carefully and can therefore be used without the risk of finishing it all (Oxford dictionary).
Engineered Hardwood Floors. Engineered hardwood floors are not solid hardwood. Only the top layer is finished real wood so that you get the look and feel of a hardwood floor. The bottom layer, or core, is made up of stacked layers of fiberboard or plywood.
1 An engineered flooring construction which is popular in parts of Europe is the hardwood lamella, softwood core laid perpendicular to the lamella, and a final backing layer of the same noble wood used for the lamella. 2  Other noble hardwoods are sometimes used for the back layer but must be compatible.