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Project Name: Purlin Strengthening, Medtronic Santa Ana <br />Project # 24399 <br />Project Engineer: SC <br />Weight Weight <br />(N) Roof Loads (psf) (E) Roof Loads (psf) <br />PVC Membrane 0.5 asphalt shingles 2.5 <br />Plywood, 1/2" 1.5 Plywood, 1/2" 1.5 <br />joists 1.5 joists 1.5 <br />insulation 1 insulation 1 <br />Gyp. Brd. 0 Gyp. Brd. 0 <br />ceiling 1 ceiling 1 <br />mechanical 1 mechanical 1 <br />Solar 0 Solar 0 <br />misc. 1.5 misc. 1.5 <br />8 < 10 <br />beams 3 beams 3 <br />11 13 <br />live load 20 live load 20 <br />total load 31 total load 33 <br />Loading Criteria <br />Date: 12/5/2024 <br />12/05/24 JOB# 24399 Page 3 of 51 <br />Reroofing is not to increase loading to existing roof framing. During review of the as-built <br />conditions, it was recommended by our office that some existing purlins be strengthened based <br />on the margin by which they do not meet current code load requirements. Since there is no <br />added load under this scope, the CEBC does not require this improvement, therefore it is a <br />voluntary improvement. <br />1851 E Deere <br />Ave-Purlins4/8/2025