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© 2020 IronRidge, Inc. FlashVue Certification Letter - 2 <br />28357 Industrial Blvd <br />Hayward, CA 94545 <br />1-800-227-9523 <br />www.IronRidge.com <br />Table 1 Notes: <br />(1) The summarized results are the lesser of the allowable capacities of assemblies using GripCap or GripCap Plus and shall be applicable to Flashvue <br />using either bracket cap. <br />(2) Capacities apply to rafter size of 2x4 or greater, a deck thickness 15/32” or greater, and lag bolts secured within the center 1/3 of rafter width with a <br />minimum 2.5” end distance. Rafters should be in sound structural condition with no sign of rot or decay. <br />(3) Deviation reflects the variance of the highest or the lowest test value from the group mean for the respective load direction. <br />(4) Safety Factor is associated with the respective failure mode recorded and determined by the specific code as shown on Page 1. <br />(5) Allowable capacity is equal to Average Peak Load at Failure divided by its associated Safety Factor. <br />(6) The uplift allowable capacity in Table 1 applies to rafters with a specific gravity (SG) of 0.5 or higher. For a wood species with specific gravity lower <br />than 0.50 the allowable uplift capacity shall be adjusted by a factor of ( 0.50) <br />3 <br />2 per National Design Specification (NDS-2018) Eq. (12.2-1). Results of <br />common wood species are adjusted and provided in Table 2 below. <br />Sincerely, <br />Gang Xuan, SE <br />Senior Structural Engineer <br />Load Direction Specimen Quantity Average Peak Load at <br />Failure (lbs) <br />Deviation of Test <br />Results (3) Critical Failure Mode Safety Factor (4)Allowable Capacity <br />(lbs) (5) <br />Uplift Load <br />Perpendicular to Roof <br />Surface <br />5 3483 6.80% Lag pull out from rafter 3 1161(6) <br />Lateral Load <br />(Parallel to Rafter)5 1060 10%Bending yielding of lag <br />bolt 3 353 <br />Lateral Load <br />(Perpendicular to Rafter)5 772 5% <br />Compressive rupture of <br />roof deck adjacent to <br />rafter <br />2.54 304 <br />Table 1: IronRidge FlashVue Allowable Capacities (1)(2) <br />Wood Species Specific Gravity Allowable Uplift Capacity (lbs) <br />Douglas Fir, South 0.46 1025 <br />Hem, Fir (North)0.46 1025 <br />Hem, Fir 0.43 926 <br />Spruce, Pine, Fir 0.42 894 <br />Table 2: IronRidge FlashVue Allowable Uplift Capacities for Rafter with SG Less Than 0.50 <br />Date: <br />2020.09.18 <br />12:16:52 -07'00' <br />417 S Clara St #2 <br />04/17/23