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<br /> <br /> <br />CARUSO <br />TURLEY <br />SCOTT <br />structural <br />engineers <br />STRUCTURAL <br />ENGINEERING <br />EXPERTS <br /> <br />PARTNERS <br />Sandra Herd, SE, PE, LEED AP <br />Thomas Morris, SE, LEED AP <br />Richard Dahlmann, SE, PE <br />Troy Turley, SE, PE, LEED AP <br />Brady Notbohm, SE, PE <br />PROFESSIONAL <br />REGISTRATION <br /> <br />50 States <br />Washington D.C. <br />U.S. Virgin Islands <br />Puerto Rico <br />1215 W. Rio Salado Pkwy. <br />Suite 200 <br />Tempe, AZ 85281 <br />T: (480) 774-1700 <br />F: (480) 774-1701 <br />www.ctsaz.com <br />Seismic Evaluation for Array 1.1: <br /> <br />CTS was asked to review the PanelClaw system to determine attachments <br />required to resist seismic loading of the ballasted solar support system on the roof <br />of the existing building. Following CBC Load Combination 16-16 and ASCE <br />Section 2.4.5, the Dead Load value has been reduced by subtracting the vertical <br />component of the seismic forces (0.6*D - 0.14Sds*D). The contribution of friction <br />due to the component weight was not considered to resist lateral forces caused <br />by seismic loads per ASCE Section 13.4. <br /> <br />Utilizing this method, calculations have been provided for the number of <br />mechanical attachments that are required to resist seismic forces that are applied <br />to the system. <br /> <br /> <br />Conclusion: <br /> <br />Therefore, it has been determined that the system as provided by PanelClaw is <br />sufficient to resist both wind and seismic loads at this project. <br /> <br />Please contact CTS with any questions regarding this letter or attachments. <br /> <br /> <br />Respectfully, <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Dylan Le Troy Turley, SE, PE, LEED AP <br />Structural Designer Partner <br /> <br /> <br />11/13/202 <br />4 <br />1330 E Seventeenth <br />St4/10/2025