Class-A fire-protected oriented strand board (OSB) sheathing, and method of and automated factory for producing the same

A Class-A fire-protected and moisture-protected oriented strand board (OSB) sheet for use in a wood-framed building, said Class-A fire-protected and moisture- protected OSB sheet comprising:

• a core medium layer made of wood pump, binder and/or adhesive materials;
• multiple OSB layers, each said OSB layer having exterior wood surfaces with shallow exterior surfaces and being bonded to said core medium layer to provide an OSB sheet having first and second side surfaces and a perimeter, and side edge surfaces extending about the perimeter of said OSB sheet;
• an edge sealant applied to the side edge surfaces of said multiple OSB layers bonded to said core medium layer, for providing protection against outdoor moisture;
• a transparent clean fire inhibiting chemical (CFIC) surface absorption layer formed on the exterior wood surfaces of each said OSB layer during a surface absorption process, so as to produce Class-A fire-protected exterior surfaces about said OSB layers and said side edge surfaces;
• and
• a moisture protective coating applied over said transparent CFIC surface absorption layer for providing protection against outdoor moisture;
• wherein said transparent CFIC surface absorption layer includes tripotassium citrate absorbed into the shallow exterior surfaces of each said OSB layer, and inhibiting (i) the ignition and spread of a fire outbreak along said Class-A fire-protected exterior surfaces, and (ii) the development of smoke from such a fire outbreak, as chemical molecules in said transparent CFIC surface absorption layer interfere with free-radicals involved in the combustion phase of said fire outbreak.