YOGI ENGINEERING WAS ENGAGED TO PERFORM THE STRUCTURAL ANALYSIS OF EXISTING ROOF JOISTS TO SUPPORT A PROPOSED RTU (ROOFTOP UNIT). THE SCOPE INCLUDED REVIEWING AS-BUILT STRUCTURAL CONDITIONS, EVALUATING LOAD-CARRYING CAPACITY OF THE JOISTS UNDER COMBINED GRAVITY AND MECHANICAL LOADS, AND PROVIDING REINFORCEMENT OR MODIFICATION DETAILS AS REQUIRED TO SAFELY ACCOMMODATE THE NEW EQUIPMENT.