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Chopelas & Associates, Inc. <br />Engineering & Desig�t Services <br />3611 16S`h St. NL, Suitc ni <br />Arlington, WA 98223 <br />P K� '60 6"1 �08� <br />(360) (>>-461 � A. . (� ) � -_ > <br />l �'�jC'`� � c� <br />April 27, 2009 � <br />Rolf Bcrsas <br />7714 30°i Strcct Sr <br />Iivcrctt, WA 9A'OS <br />�, �,� c�e� le�le � a�n (� 1 <br />/ <br />SubjecL• Yropo,cd ncv: roof f��r lhc (i-plcx at ;;�G 1lo��t :1� c. 1�V'crctt A1'A <br />'I�hc vcrtical znd lateral loads wcrc analyrcd for Uic roof and thc cxisting huilding structurc of'thc <br />subject apartment building according ta the nquircments of thc 2006 International Ruilding <br />C�odc. 'Ihc follo��'ing dcsie�� conditions for thc anah'sis ;�rc hascd on thc sitc conditions or <br />ac. ording to thc minimum codc rcquiremcnLti: <br />Soil bcaring Capacit��: "'000 PSP <br />Dcsign Snow load: 25 PSP roof <br />Ploor livc load: 40 PSP <br />1�c��� Roof typchvcighL• Composition/] 0 PSI� <br />I3asic wind Specd: SS MPII <br />\1'inJ Lxposurc/lmportancc: 13/ I��=1.0 <br />Scismic Sitc Class: D <br />I�hc subjoct building is a 2-story, 6 unit apartmcnt �vitl� about 3S7d SP per lloor (building <br />footprint) and �74R SP total living arca. I3uilding Occupancy is R-?; Construction t��pc \'R. <br />Pire scparation per 113C 705.4 csccption 5 only requires a draR stop in-line with the unit <br />scpnration for cvcry h�•o d��clling units or 3000 SP, �vhich c�'cr is smallcr. l�his would requirc <br />onc draft stop «�ithiu the ncw attic arca. Thc draft stop can br mudc o(',S' <i\V'13 and nm° doors <br />in thc draft slop musl bc sclf closing with an automatic latch. <br />All of thc loads, with thc addition of thc nc��� roof on to thc cxisting building, arc nithin <br />acceptablc limits on ?hc building. Oicrcforc no rctrofitting of thc c�isting building is ncccssarq. <br />pro��ided the existing windmv headers as called out on the plans are acceptablc. <br />Documcnts havc bccn pro� idcd that, to thc bcst profcssional judgmcnt of thc undcrsigned, <br />satisGcs thc rcyuiremcnts of RC\�� 6d.55.00� Oirough 64.55.090. If you have any qucstions or <br />arc in nccd of furthcr ossistanc� plcas4,fell frcc to call. <br />�#dsa� <br />^'`"a. CN,., ._ <br />r���•�� c�,�,�,� �:�> ri _ <br />