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��� <br />ro <br />p C <br />C N <br />�g: <br />H 2 �+ <br />� H � <br />b y � <br />� H O <br />� <br />O M <br />z n o <br />M p7 O <br />L� • f� <br />N C <br />b H � <br />t� � <br />M H <br />N <br />O N <br />�c�ar <br />y ca <br />H O N <br />July 3, 199U <br />Dave Patterson <br />Sandstrom Plumbing & Ileating <br />8535 Perimeter Road S. 116 <br />Seattle, Washington 98108 <br />Subject: Snohomish County P.U.D. Operations Center <br />Dear Dave: <br />Cllv OI <br />everett <br />runuc wones oecm�ur��r <br />010o cEDM stncEr <br />EVEPEI*.WnSwHGtOi� <br />9naoi <br />The mechanical plans as submitted must he revised to allow for the required <br />separation of the one-hour rated corridors from the balan�e of the building. <br />C� the first floor, raoms 110, 111, 120, 113 & 114; second floor rooms 210 & <br />211; and on the fourth floor, rooms 410 & 411 are defined as being po:t of the <br />�,_ � existing corridor system and, theref'ore, must meet the one-hour rated fire <br />L�1 resistive construction. <br />i The current design for the corridor constru�tion does not meet the U.B.C., <br />I(� � 1988 Standards for one-hour construction and the HVAC ducl system doas not <br />��� comply with the U.B.C. and U.M.C, as they relate to the protection of openings <br />in one-hour assemblies ur che use of the area above tlie ceiling for a return <br />air plenum. <br />� i� � Please resubmit your drawings showing 1:he necessary revisions. R letter is <br />being sent to the architect requesting submittal of a revised corridor wall <br />and ceiling construction detail whicli comalies with the U.B.C. requirements. <br />w��� <br />If I can be of assistance, please contact me at 259-8810. <br />Sincerely, <br />�� ��� Ja edeberg <br />ns Examiner <br />JW:gab/1209 <br />;n¢[ts n[nirnorcmri mnn�n <br />ps9.oAla tio's ,tn.nnni <br />zs� rnm <br />umon nuunme runuc �nnnn_s consnucnuri eucircecmr�� nurncv�cm <br />vnaCirs .r.nnnno srneicr", , mmFcnan xsor.�m� sr,untunirnpinr.Ce <br />ps,�nnez :svonno ���,i.�s��.r� a�,o�n000 sspnano <br />o,., .,�. <br />