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, � FASTENMASTER TECHNICAL BULLETIN � ' 1 1 � 1 � The FastenMaster Timberlok load values in Table 1 can TABLE 1 be used by a design professional to determine suitability of these fasteners in a rafter to top plate connection. ' • Where the uplift and/or lateral design loads have been provided on the building plons,the allowable yyood Species SPf/HF Douglas Fir Southern Pine loads in Table 1 can be compared to the plan values to make sure they are met or exceeded by use of this Lateral/ Lateral/ Lateral/ fastening method. Load Type Uplift Shear Uplift Shear UpIiR Shear • If ties or strops have been colled for to resist uplift Aliowable Load 420 320 540 380 620 410 and lateral forces, the allowable loads in Toble 1 should be compared to the manufacturer's published • Timberlok values above are bosed on ICC-ES Report#1078 and independentiy verified values for the specified connector to ensure that this �hrough testing to ASTM D-1761. fasiening method meets or exceeds these loods. • A standard wind load duration factor has been applied to these values per NDS Table 2.3.2. • In cases where the above iwo methods are not Other applicable NDS adjustment factors are at ihe discretion of a design professional. available and the wind speed from IRC Figure • These values apply only to the top plate to rafter connection and ossume that the fastener is 301.2(4) equals or exceeds 100 mph in hurricane- properly installed per the inshuctions on this bulletin. prone regions, or 110 mph elsewhere, the design loads of this connection can be determined by a design professional from one of the following three sources and compared to Table 1: l. American Forest and Paper Association (AfBPA) Wood Frame Construction Manual for One-and Two-Family Dwellings (WFCM). A sample of this chart is shown below. 2. International Code Council (ICq Standard for the Residential Construction in High Wind Regions (ICC-600). 3. Minimum Design loads for Buildings and Other Structures (ASCE-7). Sample Wind Loads Table 2 below represents common design wind loads on rafter to top plate connections taken from the AFBPA Wood Frame Construction Manual, High Wind Zone Exposure B,Wall Connections at Load Bearing Walls. TABLE 2 12 16 20 24 28 32 36 WIND ZONE RAFTER LATERAL SHEAR (MPH) SPACING � (LB.) (LB.) 90 16"o.c. 82 96 110 125 139 154 168 119 52 90 24"o.c. 123 144 165 187 209 230 252 178 78 100 16"o.c. 124 147 170 193 217 240 264 145 64 100 24"o.c. 186 220 255 290 325 360 396 218 96 110 16"o.c. 170 203 236 269 303 336 370 176 77 110 24"o.c. 255 304 354 404 454 504 554 264 116 120 16"o.c. 220 264 308 352 397 441 486 209 93 120 24"o.c. 331 396 462 528 595 bbl 728 314 140 130 16"o.c. 275 331 386 442 499 555 bl l 247 109 130 24"o.c. 413 496 580 664 748 833 917 370 164 g� <� This chart is used as an example only and should not be the sole source to design the connection. P W �� FastenMoster°'and Timberlok"are tmdemarks of OMG,Inc. Copyright OO 2009 OMG,Int.All rights reserved.