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/ PUBL/C SERI�/LES OEPA/ITAlENT <br />March 20, 2009 <br />Ms. Ruth Gonzales <br />Gonzalcs Dcsign Partncrs <br />P.O. I3ox 97 <br />Arlington, Washington 98223 <br />I'rojecL• Ncw Officcs on sccond tloor <br />Job Address: 830 SG Gvcrett Mall Way <br />Plan Rcview No: Rccheck letter for BO)01-019 <br />Dcar Ruth, <br />Aflcr reviewing thc rcvised plans, the following issucs slill rcquirc resolulion prior to pem�it issuance. Plcasc <br />providc rcvised dra�vings and a responsc letter that states how cach item has becn resolved on the drawings. <br />Plcasc cloud the revisions to thc revised drawings for permiL The comments on new drawings and recheck <br />itcros arc listcd bclow. <br />Str tural-New dra�vings for stairs <br />GuP�'� ��I. 7'he structural framing details do not match the architecturai framing details for the new interior stair <br />run. Plcasc revise the stair scetion B on sheet A2.3 to matcl� the architcctural design. <br />2. The new in�erior stair run extends past thc cxisting landing for Airec new risers that cut into the <br />previously framed slructural eciling. The follo�ving engincering dctaiis and supporting calculations arc <br />rcquircd: <br />a. Sawcut opcning into the intcrior concrete wall at the new stair; and, <br />U. Revised tloor framing plan al thc ne�v floor opening for the stair, and, <br />c. Conncction details for the ncw stair run framing into stair landing. <br />3. Plcasc revisc the siructural framing dctails for thc new cxtcrior stairs. <br />✓a. Open risers are not allowcd per IBC scction ]009.3.3, unlcss the opening bebvecn lrcads is Icss <br />than 4 inches, so that a 4 inch sphere cannot pass through. <br />� U. 'Chc minimum width tor an cgress stair is 44 inchcs, per ]I3C scction ]009.1. <br />ltechcck Architcc4�rn1 <br />l. Lxiting comment G: Pleasc suUmit thc materials and dcsign of the guardrail for the new cxterior exit <br />stair. Guard delails are requircd for the ncw cxtcriar stair on thc drawings to resist a load of 50 plf in <br />any direction at the top and to transfer this load qvough the supports to the structure, per IBC section <br />1 G07.7. L Additionally, the guard dctail should bc shown on the drawings to resist a single concentratcd <br />load of 200 pounds applied in any dircctian at any point, per II3C section 1607.7.1. I. <br />2. New comment The walls and soffits �vithin cnclosed usable spaces undcr enclosed and unenclosed <br />stairways should Ue protccicd by onc hour fire resistaacc rated construction per IBC section 1009.5.3. <br />3. New commcnh Thc new stair nin is parl of thc requircd one-hour fire resistant floor-ceiling assembly <br />for thc second Iloor, and as such mquires onc hour fire resistant construction, including thc swcWral <br />support of the landing supporting the ne�v stair nm, per IBC taUle GO1. Pleasc revisc lhe stair seclion 1 <br />on sheet A2.2, and indicate nen- versus cxisting construction, as well as the tested fire-resistant one hour <br />assembly. <br />CITY GF EVERETf • 3200 Cedar Street • Everett, WA 98201 •(425) 257-8800 • Fax (425) 257-8856 � <br />