1. Engineering Overview Presenter’s Name 00. 00. 2014

2. Introduction ×Engineering Background ×Services Provided ×Racking Design ×Two Horizontal Rack (2HR) ×Portrait Utility ×Module Fastening Methods ×Tilt Brackets ×Ballast Foundations

3. Engineering Team Consists of… ×Three Licensed Professional Engineers (2) Structural Discipline (1) Mechanical Discipline ×Civil Engineers ×Mechanical Engineers ×Process Engineers ×Research and Development Engineers ×Onsite Field Technicians ×Professional Geologist Engineering Staff

4. Engineering Services “Value Engineer” racking structure for specific site conditions ×Work directly with customer throughout quoting process and project ×Understanding customer’s wants and needs ×Full rack design at the quoting stage ×Provide an economical solution while maintaining structural stability Design Foundations ×On site pull tests – Provided by SFR ×Geotech Report – Provided by customer

5. Racking Design ×Racks are designed using local environmental loads (wind, snow, and seismic) per the International Building Code (IBC) and/or local building codes ×Finite Element Modeling (FEM) ×Designs are based on 3rd party testing such as Wind tunnel, Structural connections testing, and ground bond testing ×Multiple full scale load tests have been conducted to confirm theoretical calculations ×Design Considerations- Structural Integrity, Preassembly, and Installation Simplicity

6. Racking Design Risa 3D ×Ability to model entire rack ×Apply various loading conditions ×Analyze multiple load combinations ×Perform code checks ×Analyze deflections ×Generate Structural reports

7. Racking Design

8. CFS - RSG Software ×Specializes in cold form steel design ×Ability to perform code checks on various cold form shapes ×Analyze complex cold-form shapes

9. Racking Design Structural Connection Testing ×Per Chapter F - Cold Form Design Manual

10. 2HR Landscape Rack

11. 2HR Feature and Benefits ×Maintains SFR’s trademark pre-assembled rack design. ×Integrated direct bolt and smart clip bonding solution. (ETL/UL approved) ×Can accommodate any project loads and tilt angle ×Adaptable to any pile solution; SFR Smart Post, Wide Flange, and Round Post ×Lift beam installation reduces field rigging and installation time ×The introduction of the Horizontal Rail Bracket creates safe and easy installation practices

12. Cold Form C-Shapes Horizontal Rails C-shape maximizes shipping density, reducing shipping cost Vary in size depending on project loads; ×6” to 10” deep members, 16 gauge – 14 gauge - Optimizes steel use and cost Top C-Shape allows for wire management along the length of the rack ×Pre punched access holes allow for zip ties to restrain cables Rib Stiffeners result in lighter gage material and more cost effective design 2HR Rack Components

13. Cold Form C-Shapes Vertical Rails C-shape maximizes shipping density, reducing shipping cost Vary in size depending on project loads; 2.5” to 4” deep members - Optimizes steel use and cost Clip or Direct Bolt Panel Mounting ×Clips use proprietary thread extruding screw for bonding while minimizing corrosion exposure ×Access holes in bottom flange allow direct bolt panel mounting Pre-punch lift holes for use with lift beam for installation 2HR Rack Components

14. Diagonal Bracing ×Diagonal bracing minimizes lateral deflection & squares rack ×Minimizes “sagging” and maintains even panel spacing ×Takes lateral forces from torsion braces back to tilt bracket ×Braces Weak Axis of Horizontals Torsion Braces ×Works in conjunction with diagonal bracing and vertical rails to effectively brace the horizontal from torsion. 2HR Rack Components The use of bracing ultimately results in a lighter, stiffer, and more cost efficient rack

15. Benefits Of Bracing Competitor’s Rack -No Bracing Solar Flexrack

16. 2HR Rack Components Horizontal Rail Brackets ×Enables the horizontal rail to connect to the top chord of the tilt at the same elevation; eliminating “roll-over” and preventing twist of the horizontal rail ×Seat allows the rack to be set in place on tilt brackets without the need to install bolts while rack is suspended ×Allows the rack to be easily adjusted in E-W direction

17. Portrait Utility Rack

18. Portrait Utility Feature and Benefits ×Maintains SFR’s trademark pre-assembled rack design ×Reduces loose rack components during installation ×Integrated direct bolt bonding solution. (ETL/UL approved) ×Can accommodate any project loads and tilt angle ×Adaptable to any pile solution; SFR Smart Post, Wide Flange, and Round Post ×Integrated wire management ×The use of bracing allows for lighter, stiffer, and more cost effective racks

19. Cold Form Z-Shapes Horizontal Rails Allows for racks to be nested tightly together to maximize shipping density, reducing shipping cost Vary in size depending on project loads; ×5” deep members, 14 gauge – 12 gauge o Optimizes steel use and cost Wire management along the length of the rack Z-shapes can be spliced together for longer cost effective racks Portrait UT Components

20. Horizontal Bracing ×Minimizes lateral deflection & squares rack ×Minimizes “sagging” and maintains even panel spacing ×Braces weak axis of horizontals Connecting Channel ×Connects horizontals purlins together ×Pre-assembled ×Works in conjunction with horizontal bracing to effectively brace the horizontal rail Kicker Brace × Effectively braces compression flange of tilt bracket

21. Smart Bonding Clips ×2HR Rack Direct Bolt ×Portrait UT Rack ×2HR Rack Module Fastening Methods

22. Tilt Brackets “Two Member” Tilt Bracket Reduces number of components Top Chord size varies ×Optimizes steel use and cost Adaptable to SFR Smart Post, Wide Flange and Round Posts Allows tilt bracket to be pre-assembled ×Eases tilt bracket installation

23. Tilt Brackets Tilt Bracket Assembly ×Allows plate to be attached & leveled to post easily ×Followed by tilt bracket assembly. (Pre- assembly is available )

24. Ballast Foundations ×Eliminates post weldments ×Anchor bolt & leveling nuts allow for ballast to be installed on sloping terrain ×Reduces block height requirements ×Adaptable for any ground clearance ×Reduces installation time

25. ON BEHALF OF EVERYONE AT SOLAR FLEXRACK THANK YOU VERY MUCH Have additional questions? Drop us a line at: 888.380.8138 or visit: solarflexrack.com