"Louisiana Pacific" or "LP" (Inner Seal) Siding is installed on the exterior of this home. Composite wood sidings are made from various combinations of wood veneers, fibers or flakes, bound together with glues, resins, and/or waxes. They come with different names, LP siding, T1-11, Plywood, oriented strand board (OSB), and hardboard are basic engineered wood siding materials.