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E <br />IronRidge June 6, 2011 <br />Mr.William Kim page 3 of <br />XRS Rail, Roof Flush Mount System - Structural Analysis <br />Table 2 - MAXIMUM SPANS - Roof Wind Zone 2 <br />%RS Rail <br />Wind <br />Speed <br />Snow Load <br />Exposure <br />Category <br />mph <br />o psf <br />10 psf <br />20 psf <br />30 psf <br />40 psf <br />50 psf <br />60 psf <br />90 <br />11'-o" <br />111-0" <br />30'-6" <br />10'-0" <br />9'-0" <br />8'-6" <br />7'-6" <br />100 <br />10'-0" <br />10--0" <br />10'•0" <br />10,-0- <br />9'-0- <br />8'•6" <br />7'-6" <br />Category <br />B <br />110 <br />9'.6" <br />9'•6" <br />9'-6" <br />1 9'-6" <br />9'-0" <br />8'-6" <br />7'-6" <br />120 <br />9'-0" <br />91-0" <br />9'-0" <br />91-0" <br />9'-0" <br />8'-6" <br />7'-6" <br />110 <br />8'-0" <br />8'•0" <br />8'•0" <br />8'-0" <br />8'-0" <br />8'-0,' <br />7'-6" <br />140 <br />7-6" <br />7'-6" <br />7'•6" <br />T-6" <br />7'•6" <br />7'-6" <br />7'•G" <br />150 <br />7'•0" <br />7'•0" <br />7'-0" <br />7'-0" <br />7'-0" <br />7'-W <br />T-0" <br />90 <br />9'-6" <br />9'-6" <br />9'-6" <br />9'-6„ <br />8'-0" <br />8•-6" <br />71•6" <br />100 <br />8'•6" <br />8'•6" <br />8'-6" <br />8'-6" <br />8'•6" <br />8'-6" <br />7'•6" <br />110 <br />81-0" <br />8'-0" <br />B'-0" <br />B'•0" <br />8' 0" <br />8'-0" <br />7'•6" <br />Category <br />C <br />120 <br />7'-6" <br />71•6" <br />7'•6" <br />7'-6" <br />7'-6" <br />T•6" <br />7'-6" <br />190 <br />7'•0" <br />7'-0" <br />7'-0" <br />7'-0" <br />7'•0" <br />7'-0" <br />7'-0" <br />140 <br />6'-6 <br />• <br />6 <br />6'.6" <br />6'•G <br />6'-6" <br />ISO <br />6'•0" <br />6'-0" <br />6'-0" <br />6'-0" <br />6'•0" <br />G'-0" <br />6'•0" <br />Note -Tabulated values are based on the following criteria: <br />I. Roof wind zone 2 5. 2 in clear betwenr roof and rail. <br />2. Building mean roof height ' 30 ft. 6. End cantilever spat_ <br />0.40 x adjacent interior span <br />3. Roof slope = 6 in. per fl. 7 No rail splices in end 6pans <br />4. Snlar panel long dimension - 67.5 in. B. No rail splices in the middle Ili of interior spans <br />Starling Madison i.nfquist, Inc. Consulting Structural and Foren67c Gnginccrs + <br />