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Tony Lee <br /> To: Dean Kralios <br /> Subject: RE:Ceiling radiation dampers <br /> HiDean- <br /> Yes,we agree with this assessment.The 1970 UBC limited ceiling openings to 100 square inches for any one hundred <br /> square feet of fire-rated ceilings (Section 4303) and dampers were not required. For any future discussions, I believe that <br /> the IPMC would direct us a different route with a Level 3 alteration. <br /> We will continue to process the permits. Thank you for your time and consideration on these issues. <br /> Tony Lee <br /> Building Official <br /> City of Everett <br /> Original Message----- <br /> From: Dean Kralios fmailto:dkralios@smrarchitects.com] <br /> Sent:Monday, March 13,2017 5:04 PM <br /> To:Tony Lee <br /> Subject: RE:Ceiling radiation dampers <br /> Tony, <br /> Thank you for forwarding this information <br /> I also have reviewed the 2015 iEBC in relation to this topic. Based on the scope of work proposed at Trailside and <br /> Parkside our understanding is that the classification of work falls under Level 1 alterations(Section 503 and Chapter 7). <br /> Section 703.1-Fire Protection, notes"Alternations shall be done in a manner that maintains the level of fire protection <br /> provided."As the project was originally constructed in 1970 it is difficult to confirm what, if any,fire-resistance rating <br /> was required for floor-ceiling assemblies between residential units.The record drawings we have for the project show <br /> 2x12 sawn floor joists with a plasterboard ceiling finish of unknown thickness,5/8"plywood subfloor, and 1-5/8"light <br /> weight concrete topping but do not call out a fire-rating. • <br /> As the existing bathroom fans do not feature a ceiling radiation damper, I would argue that an in-kind replacement in <br /> units-such as is proposed- does not make the building any less safe than its existing condition and "maintains the level <br /> of fire protection provided." <br /> Please review and let me know the City's position. <br /> Thanks, <br /> Dean <br /> Dean A. Kralios, NCARB, LEED AP BD+C <br /> Principal <br /> SMR Architects 117 South Main Street,Suite 400 Seattle,WA 98104 <br /> direct:206-316-2685 I main:206-623-1104 fax:206-623-5285 <br /> `\ <br />