AIA SYMPOSIUM; ASHRAE, AMERICAN SOCIETY OF HEATING, REFRIGERATING + AIR-CONDITIONING ENGINEERS; CENTER FOR INNOVATIVE TECHNOLOGY; COMMONWEALTH OF VA; DEPT OF ENGINEERING + BUILDINGS; DIVISION OF ENGINEERING + BUILDINGS; HC YU + ASSOCIATES; HEALTHY BUILDINGS 88 CONFERENCE; NATL CONCRETE MASONRY ASSN; STATE OF VA; UNIV FACILIT PLANNING CONSTRUCTION GROUP; VA TECH; WHO, WORLD HEALTH ORG