Abstract: A three layer building panel material product made from recycled waste thermoplastic synthetic resin material and cellulose fibers aggregate, outer layers of which substantially comprise reset pressure rolled, heat-fused, and re-hardened thermoplastic synthetic resin bits, and having a core of cellulose fiber aggregate bonded by re-hardened heat-fused thermoplastic synthetic resin bits pressure bonded to the outer layers.

Abstract: A three-compartment, heated-environment conveyor structure equipped with individual compartment material-lay-down delivery systems, processing a three-layer building panel material product, continuously, by compartment-to-compartment material laydown, as the product buildup is conveyor-advanced through the machine. The apparatus and process is for manufacturing a continuously extruded running length of construction paneling from continuous flow sources of thermoplastic material bits and a mixture thereof with cellulose fiber bits, by successively fusing and pressure rolling even-distribution layers of thermoplastic bits, a mixture of thermoplastic and cellulose fiber bits, and, again, thermoplastic bits, in respective ones of three cascaded oven chambers through which a material carrying conveyor is selectively advanced.