Sandwich construction building materials

Sandwich construction building material, which comprises:

• at least one facing element forming the outer covering of the sandwich construction building material, said at least one facing element on each face thereof having been selected from the group consisting of:
• plywood, fiberboard, particle board, mineral board, wood, metal, synthetic resin, plastic cement, cement combined with wire mesh, laminates and any combination of the above;
• and
• an interior core layer extending between, being fixedly mounted perpendicular to, and supporting the inner surface of, each said outer covering, said interior core layer comprising at least one core element formed from a single one-ply sheet of veneer selected from the group consisting of:
• natural wood veneer having naturally aligned fibers and veneer formed from wood fibers aligned and embedded in synthetic resin, said at least one core element being positioned so that said wood fibers in said veneer are disposed substantially perpendicular to each said face of said at least one facing element, said at least one core element being arranged into at least one geometric shape so as to form an overall openwork pattern in said interior core layer, said at least one geometric shape being selected from the group consisting of:
• longitudinally-extending veneer strips of corrugated configuration, longitudinally-extending veneer strips of right-angled wave-form configuration longitudinally-extending veneer strips of angled wave-form configuration and veneer strips formed into tubular configuration, the opposite edges of said geometrically-shaped veneer core element each being aligned in a single plane and in contact with said at least one facing element on each inner face of the sandwich construction building material.