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Structural Modification Analysis Report <br /> September 05,2019 <br /> Assumptions and Limitations <br /> Our structural calculations are completed assuming all information provided to Infinigy <br /> Engineering is accurate and applicable to this site. For the purposes of calculations, we assume <br /> an overall structure condition of"like new" and all members, connections, anchors, and masonry <br /> to be free of corrosion and/or structural defects. The structure owner and/or contractor shall <br /> verify the structure's condition prior to installation of any proposed equipment. If actual <br /> conditions differ from those described in this report Infinigy Engineering should be notified <br /> immediately to complete a revised evaluation. <br /> Our evaluation is completed using standard TIA, AISC, ACI, and ASCE methods and <br /> procedures. Our structural results are proprietary and should not be used by others as their own. <br /> Infinigy Engineering is not responsible for decisions made by others that are or are not based on <br /> our supplied assumptions and conclusions. <br /> This report is an evaluation of the rooftop mounted equipment and/or antenna supporting <br /> structures to be proposed or modified as shown in the referenced construction drawings. <br /> Applicable building element adequacy to support these structures is also evaluated when the <br /> applied forces increase significantly based on engineering judgment. <br /> The actual roof truss chord lumber grade is unknown and was assumed to be MSR lumber with <br /> E=1,800 ksi and Fb=2,600 ksi. If these assumptions are significantly different from present <br /> conditions,the result of this study must be re-evaluated. <br /> SE52XC206 Page 15 I 09.08 <br />