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(hie <br /> MADDEN&BAUGHMAN <br /> E N G I N E E R I N C . 1 N C <br /> December 29, 2010 <br /> Mr. Erik Matthews <br /> Surround Architecture, Inc. <br /> 150 SW Harrison Street <br /> Portland, OR 97201 <br /> RE: Gates Fire Hall <br /> Gates,Oregon <br /> It is my understanding that the contractor has proposed to replace galvanized nails with carbon <br /> steel nails at the sill plate nailing for shear walls. This substitution is acceptable provided that the <br /> sill plate is pressure treated by by Borate. The 2009 IBC has adopted this nailing as acceptable in <br /> chapter 2304.9.5 <br /> Sincerely, <br /> Jerome Madden, P.E., S.E., Principal <br /> MS <br /> neering, Inc. <br /> a -m,u,r <br /> OREGON <br /> p/ VV <br /> 22 0 <br /> Cliff A. 360 <br /> EXPIRES 12-31 -10 <br /> • <br /> 2632 SE 25th Avenue,Sic G.Portland OR97202/ tel 503236.7611/fax 5032369411/www.maddenbwghman.cbm <br />