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McPherson Engineering By:J.R. <br />Date:7/25/24 <br />Existing Loads: <br />Roof Design Loads: <br />Roofing = 4.0 p.s.f.Composition roofing <br />Sheathing =1.5 p.s.f.1/2" Plywood <br />Framing =1.5 p.s.f.2x Rafter/Truss framing <br />Misc =3.0 p.s.f. <br />DLr1 =10.0 p.s.f.Roofing Dead Load (applied to top of rafters/trusses only) <br />Ceiling =2.0 p.s.f.Drywall and 2x framing <br />DLr2 =12.0 p.s.f.Total Existing Roof Dead Load <br />LLr = 20.0 p.s.f.Roof Live Load (Table 1607.1) <br />Floor Design Loads: (if applicable) <br />Flooring =10.0 p.s.f.Weight of floor finish <br />Sheathing = 2.2 p.s.f.3/4" plywood <br />Framing =2.0 p.s.f.2x framing or manufactured floor truss <br />Interior Partitions =15.0 p.s.f.2x framed walls with drywall finish each side <br />Ceiling =5.0 p.s.f.Drywall ceiling finish below <br />Misc. = 0.8 p.s.f. <br />DLf = 35.0 p.s.f.Total Existing Floor Dead Load <br />L=120.0 ft Length of walls <br />Proposed Loads: <br />Panels =2.8 p.s.f.weight of panels including rack system <br />DLr1_proposed =12.8 p.s.f.Proposed Roof Dead Load (applied to top only) <br />DLr2_proposed =14.8 p.s.f.Total Proposed Roof Dead Load <br />LLr_proposed = 0.0 p.s.f. <br />Check Proposed Gravity Loads: <br />Total Existing Roof Load <br />Wex = (DLr1 + LLr) (Aroof) =11.4 kips <br />Total Proposed Roof Load <br />Wprop = (DLr1 + LLr) (Aroof - Aarray) + (DLr1_proposed + LLr_proposed) (Aarray) =7.1 kips <br />Proposed Load Demand <br />Gravity Loads - Detached Structure <br />Roof Live Load (panels cannot support live loads, including the weight <br />of stacked materials or workers) <br />Wprop - Wex =-37.78% TOTAL DECREASE IN GRAVITY LOADS, PANELS OK!Wex <br />7/25/2024 5:22 PM <br />5 of 9 <br />©McPherson Engineering <br />2415 N Bonnie <br />Brae9/23/2024