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05/18/2007 18:38 9524721810 PAGE 01 <br /> (9521445-2106 P. <br /> 2? I_5amstadrtascaEngineerinG <br /> M <br /> Ay 1.5 11 ' [l�af ��� I [/ i�� <br /> b ic-c3cf-L_. 7 <br /> May 16,2007 <br /> ITAASCA ENGINEERING, Inc. <br /> 1342 TENTH AVENUE EAST <br /> SHAKOPEE, MN 55379-2902 <br /> 952-445-7993 <br /> Mr,, Fred Johnson <br /> Caliber Buillders <br /> 3535 Co.Rd. 34 <br /> Mound,MN 55364 <br /> Re: Windows framing at Single Family Residence,4017 North Shore Drive, Orono, MN <br /> Dear Fred: <br /> I reviewed the layout for windows in the above residence. They are good for, 90 MPH wind if the <br /> following items are considered and used as specs for the window installation. <br /> • The sides of the windows must be 2-2x6 members that are balloon:Gamed from the first floor to <br /> th.e dormer gable lower framing or roof plate. <br /> O Cross headers on the smaller windows on the left of the large window shall include 3V inch <br /> header for wind support. 31A x 5'/2 inch Timberstrand.headers would be sufficient. <br /> • <br /> 3 V2 x 5'/z inch Tim,berstrands are correct for the large window openings as supporting cross <br /> members. <br /> • Ground level wind velocity reduction considered in this design. <br /> With this layout the structure will be structurally substantial and meet your code requirements. <br /> IBC2000. With these corrections, J approve the construction as structurally competent. I hereby <br /> certify that this letter report and/or specification has been.prepared by me or under my <br /> direct supervision and that I am a duly registered Professional Civil Engineer under the <br /> laws of the State of Minnesota. if you have any :further questions or if I can be of any further <br /> assistance,please do not hesatate,to„,phone or write. <br /> Sincerely, <br /> iTASC A © <br /> 1rNGINF ltlN(i,1 �.,. ,w hSa a '1 s ec '& (�,NQI 11 C' <br /> eifl <br /> `" f <br /> Lawrence E. Samspd,. . '.-. /, � ko„ - l <br /> 0(A) <br /> Civil Engineer,Minl sot R,egiyti''aty#. 6220 <br /> Encl.: Brief Resume <br />