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Dead & Live Load Criteria <br />Residential Wood Roof Loads <br />Dead Load <br />Gravity Seismic <br />roofing 1.0 psf 1.0 psf <br />asphalt shingles 2.5 psf 2.5 psf <br />insulation 1.0 psf 1.0 psf <br />1/2" plywood sheathing 1.5 psf 1.5 psf <br />SUB-TOTAL 6.0 psf 6.0 psf <br />misc mech + plumbing 2.0 psf 2.0 psf <br />2x6 roof rafters @ 24" O.C.0.6 psf 0.6 psf <br />SUB-TOTAL 8.6 psf 8.6 psf <br />2x8 ceiling joists @ 24" O.C.1.3 psf 1.3 psf <br />1/2" gypboard ceiling 2.8 psf 2.8 psf <br />4x8 wood beams @ 15'-0" O.C.0.4 psf 0.4 psf <br />SUB-TOTAL 13.1 psf 13.1 psf <br />wood columns 0.1 psf 0.0 psf <br />SUB-TOTAL 13.2 psf 13.1 psf <br />interior wall partitions 6.0 psf 3.0 psf <br />exterior walls 8.8 psf 4.4 psf <br />TOTAL DEAD LOAD 28.0 psf 20.6 psf <br />Live Load <br />TYPICAL ROOF LIVE LOAD 20 psf (reducible) <br />Walls <br />Interior Wood Partition Walls Gravity Seismic <br />5/8" drywall ea. side 5.6 psf <br />2x4 @16" O.C. wall studs 0.9 psf <br />double top plate + sole plate 0.5 psf <br />misc. MEP 0.5 psf <br />SUB-TOTAL 7.5 psf 7.5 psf <br />avg. height 8 ft <br />avg. spacing 10 ft <br />TOTAL 6.0 psf 6.0 psf <br />Exterior Wood Shear Walls Gravity Seismic <br />2x4 @16" O.C. wall studs 0.9 psf <br />double top plate + sole plate + rim joist 0.7 psf <br />1/2" plywood sheathing one side 1.5 psf <br />5/8" drywall one side 2.8 psf <br />1" stucco siding exterior 8.0 psf <br />Misc. MEP 0.5 psf <br />SUB-TOTAL 14.5 psf 14.5 psf <br />avg. height 9.15 ft <br />avg. spacing 15.00 ft <br />TOTAL 8.8 psf 8.8 psf <br />Page 1 of 1 <br />ADU 1123 Magnolia Ave. <br />Proj. No. 16113.00 09/30/24 <br />2 <br />1123 S Magnolia Ave <br />Unit# 22/19/2025