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Standard Conditions for Engineering Services on Existing Structures Proposed PV-Panels and Preliminary Design Target T0286 - Santa Ana - Final Report 7/19/2024 Sheet 3.1 Prepared by PB Checked by AY • PV solar panels shall be installed on the roof as arrays on a ballasted racking system. A typical ballasted racking system is designed to resist wind uplift and sliding by placing concrete blocks (ballast) as counterweight on the racks. The system does not increase uplift on the building because the ballast should be designed to resist the additional uplift in order to provide the code required factor of safety. • If the PV racking system is mechanically attached to the roof deck, then the uplift and shear forces at each mechanical attachment are not to exceed the capacity noted in this report under the conclusion section. • It is assumed that the panels will be approximately 12 inches above the rooftop at the high end. • It is assumed that the average design weight includes the weight of the panels, racking system and the ballast and all required assemblies. PPE-05184.03 • The analysis is based on the information gathered from the field and/or information provided to Pure Power Engineering and is assumed to be current and accurate. • Unless noted otherwise, the structure and the foundation system are assumed to be in good condition, free of defects, and can achieve theoretical strength. • It is assumed that the structure has been properly maintained and shall be properly maintained during its service. The superstructure and the foundation system are assumed to be designed with proper engineering practice and fabricated, constructed and erected in accordance with the design documents. Pure Power will accept no liability which may arise due to any existing deficiency in design, material, fabrication, erection, construction, etc. or lack of maintenance. • The analysis results are only applicable for the proposed additions and alterations specified in this report. Any deviation of the proposed equipment and placement, etc., will require Pure Power to generate an additional structural analysis. • The analysis does not include the design of the racking system or the ballast it requires. The analysis is performed to verify the capacity of the main structural system. Connections are assumed to have the capacity of the main structural members. • Pure Power assumes that the existing building has NOT been modified or altered from its original design. Building landlord/client shall inform PPE with any kind of modification and/or alteration that may have been done to the existing building during its lifetime. 1330 E Seventeenth St4/10/2025