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IronRidge June 16, 2014 <br /> Mr. David F. Taggart Page 2 of 11 <br /> IronRidge XR1000 Rail, Roof Flush Mounting System— Structural Analysis <br /> Tabie 1 - MAXIMUM SPANS (inches) - Roof Slope 0 to 6 Degrees-Wind Zone 1 <br /> XR1000 Wind Ground Snow Load <br /> Rail Speed <br /> Exposure mph 0 psf 10 psf 20 psf 30 psf 40 psf 50 psf 60 psf 70 psf 80 psf 90 psf <br /> 100 163 138 116 109 97 88 80 75 70 66 <br /> 105 163 138 116 109 97 88 80 75 70 66 <br /> 110 163 138 116 109 97 88 80 75 70 66 <br /> 120 161 138 116 109 97 88 80 75 70 66 <br /> Category 130 148 138 116 109 97 88 80 75 70 66 <br /> B 140 137 137 116 109 97 88 80 75 70 66 <br /> 150 128 128 116 109 97 88 80 75 70 66 <br /> 160 120 120 116 109 97 88 80 75 70 66 <br /> 170 113 113 113 109 97 88 80 75 70 66 <br /> 100 163 138 116 109 97 88 80 75 70 66 <br /> 105 155 138 116 109 97 88 80 75 70 66 <br /> 110 148 138 116 109 97 88 80 75 70 66 <br /> 120 135 135 116 109 97 88 80 75 70 66 <br /> Category 130 125 125 116 109 97 88 80 75 70 66 <br /> C 140 116 116 116 109 97 88 80 75 70 66 <br /> 150 108 108 108 108 97 88 80 75 70 66 <br /> 160 101 101 101 101 97 88 80 75 70 66 <br /> 170 95 95 95 95 95 88 80 75 70 66 <br /> 100 149 138 116 109 97 88 80 75 70 57 <br /> 105 142 138 116 109 97 88 80 75 70 66 <br /> 110 135 135 116 109 97 88 80 75 70 66 <br /> 120 124 124 116 109 97 88 80 75 70 66 <br /> Category 130 114 114 114 109 97 88 80 75 70 66 <br /> � 140 106 106 106 106 97 88 80 75 70 66 <br /> 150 99 99 99 99 97 88 80 75 70 66 <br /> 160 93 93 93 93 93 88 80 75 70 66 <br /> 170 88 88 88 88 88 88 80 75 70 66 <br /> Notes—see page 11 <br /> Starling Madison Lofquist,Inc. Consulting Structural and Forensic Engineets <br /> -2- <br />