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a � Z <br /> , ' ' " Ir�nRidge June 16, 2014 <br /> . Mr. David F. Taggart Page 7 of 11 <br /> IronRidge XR1000 Rail, Roof Flush Mounting System— Structural Analysis <br /> Table 6- MAXIMUM SPANS (inches) - Roof Slope 7 to 27 Degrees -Wind Zone 3 <br /> XR1000 Wind <br /> Rail Speed Ground Snow Load <br /> Exposure mph 0 psf 10 psf 20 psf 30 psf 40 psf 50 psf 60 psf 70 psf 80 psf 90 psf <br /> 100 115 115 109 94 83 75 69 64 60 57 <br /> 105 110 110 109 94 83 75 69 64 60 57 <br /> 110 105 105 105 94 83 75 69 64 60 57 <br /> Category 120 97 97 97 94 83 75 69 64 60 57 <br /> 6 130 90 90 90 90 83 75 69 64 60 57 <br /> 140 83 83 83 83 83 75 69 64 60 57 <br /> 150 78 78 78 78 78 75 69 64 60 57 <br /> 160 73 73 73 73 73 73 69 64 60 57 <br /> 170 69 69 69 69 69 69 69 64 60 57 <br /> 100 98 98 98 94 83 75 69 64 60 57 <br /> 105 93 93 93 93 83 75 69 64 60 57 <br /> 110 89 89 89 89 83 75 69 64 60 57 <br /> Category �20 82 $2 $2 82 82 75 69 64 60 57 <br /> C 130 76 76 76 76 76 75 69 64 60 57 <br /> 140 71 71 71 71 71 71 69 64 60 57 <br /> 150 66 66 66 66 66 66 66 64 60 57 <br /> 160 62 62 62 62 62 62 62 62 60 57 <br /> 170 59 59 59 59 59 59 59 59 59 57 <br /> 100 90 90 90 90 83 75 69 64 60 57 <br /> 105 86 86 86 86 83 75 69 64 60 57 <br /> 110 82 82 82 82 82 75 69 64 60 57 <br /> Category 120 76 76 76 76 76 75 69 64 60 57 <br /> p 130 70 70 70 70 70 70 69 64 60 57 <br /> 140 65 65 65 65 65 65 65 64 60 57 <br /> 150 61 61 61 61 61 61 61 61 60 57 <br /> 160 57 57 57 57 57 57 57 57 57 57 <br /> 170 54 54 54 54 54 54 54 54 54 54 <br /> Notes—see page 11 <br /> Starling Madison Lofquist, Inc. Consulting Structural and Forensic Engineers <br /> -7 - <br />