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HYUNDAI SOLAR <br /> EVERETT, WASHINGTON <br /> NEW SOLAR PANELS <br /> GENERAL DESIGN LOADS: <br /> Project is designed in accord with requirements of the 2015 International Building Code. <br /> For this location,the following design parameters apply: <br /> Occupancy Category II <br /> Wind 110 MPH 3 second gust(LFRD), Exposure C <br /> Seismic Site Class D, Design Category D1 <br /> Roof Snow Load 25 PSF (reduction for sliding snow not used) <br /> Roof Dead Load 3.5 PSF (solar panels) <br /> Soil = 1500 PSF (assumed), <br /> GENERAL PROJECT SCOPE DISCUSSION: <br /> This project involves the addition of arrays of roof mounted solar panels. Each array <br /> consists of Itek 360-SE 72-Cell panels aligned in portrait mode. The panels are <br /> supported by Unirac ballasted solar rail system. <br /> Existing building being studied for solar has 5 1/4"x 20" glu-lam beams at 12 ft o/c with <br /> 3x decking spanning the 12 ft between beams. The back area of the building is framed <br /> with 2x18 joists at 24" o/c spanning 21'-6"across the space. <br /> The attached calculations check the solar rails for the design wind, dead load, and snow <br /> loads and also the existing roof framing for new loading from solar(extra dead load)plus <br /> the rails concentrate the snow load on the roof at rack locations. The framing was <br /> found to be okay for the added solar dead. <br /> ge2 <br />