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Project: Proposed ADU Sheet 3 <br />Address:2121 LEWIS ST AND 2121 LEWIS ST #2 Job No.2025-7 <br />SANTA ANA, CA 97206-2236 Date: <br />A.5 DEAD LOAD / LIVE LOAD <br />I.Roof Dead Load <br />Comp Built-up Roof 6.50 <br />Struct 1 Plywood or OSB 1.50 <br />Roof Rafters 2.50 <br />Ceiling Joist 2.50 <br />Insulation 0.50 <br />1/2" Gypboard 1.50 <br />Misc Elec and Mech Items 1.00 <br />Total 16.00 psf <br />Roof Live Load 20.00 psf <br />III.Exterior Wall 1" Cement Plaster 7.50 psf <br />Struct 1 Plywood or OSB 1.50 <br />Stud 2.50 <br />5/8" Gypboard 2.50 <br />Total 14.00 psf <br />IV.Interior Wall 5.00 psf <br />Structural Calculation SheetKM Associates Inc <br />5/27/2025