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Tumalo Station Solar <br />Tumalo, OR <br />7/2/2019 <br />RVC <br />Connection Capacity of Metal Roof to Framing:Zone 1 <br />Values for Screws in Metal Roof (Metal Roof Clip to Metal Purlin Below) <br />Screw Factor of Safety = 3 ** Purlins are 20ga, Metal roof is 22ga <br />Load Duration Factor, Cd = N/A <br />Spacing of Screws Along Roof Rib = 48 in Roofing to Z Purlin and then Z Purlin to Deck (16" oc) <br />Tabulated Screw Tension = 110 lbs Per Scafco for #14 Screw in 20ga Material <br />Tabulated Screw Shear = 203 lbs Per Scafco for #14 Screw in 20ga Material <br />Tension Force on Screw = 200 lbs <br />Shear Force on Screw = 27 lbs <br />Number of Screws = 2 (2) screws per standoff are engaged <br />Unity Check = 0.98 <br />Connection Capacity of Metal Roof to Framing:Zone 2 <br />Values for Screws in Metal Roof (Metal Roof Clip to Metal Purlin Below) <br />Screw Factor of Safety = 3 ** Purlins are 20ga, Metal roof is 22ga <br />Load Duration Factor, Cd = N/A <br />Spacing of Screws Along Roof Rib = 48 in <br />Tabulated Screw Tension = 110 lbs Per Scafco for #14 Screw in 20ga Material <br />Tabulated Screw Shear = 203 lbs Per Scafco for #14 Screw in 20ga Material <br />Tension Force on Screw = 176 lbs <br />Shear Force on Screw = 18 lbs <br />Number of Screws = 2 (2) screws per standoff are engaged <br />Unity Check = 0.85 S5! Spacing OK <br />S5! Spacing OK <br />4/12 <br />20 114776 00 BP <br />3225 STATE STREET <br />City of Salem Building & Safety Division 24/35