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Date: May 15,2018 <br /> iir To: Chris Burgess <br /> Wright Group <br /> 3241 NE 42nd Street <br /> Vancouver, Wa 98663 <br /> Re: Keizer Station Holiday Inn Express <br /> CMU wall construction,request for alternate construction <br /> Follow up to RFI response submitted on January 18, 2018 <br /> Chris, <br /> It is my understanding that you have proposed an alternate flashing assembly for the CMU <br /> installation. The following is a summary of the discussion regarding this request. <br /> Responding to the RFI, I made a site visit. Upon my arrival at the project site in January, <br /> the masonry was 75% completed. There was enough exposed wall such that I was able to <br /> verify the liquid applied membrane installation, masonry installation embedment, reinforcing, <br /> weep holes etc. At that time, I answered the RFI and approved the substitution of Liquid <br /> applied WRB and flashing, provided the WRB manufacturer approved the as built assembly <br /> as appropriate for their product and would provided full warranty. The manufacture did <br /> respond in the affirmative, however they did not specifically reference the revised detail that <br /> I provided as part of the RFI. <br /> L As follow up I requested an on-site meeting with the General Contractor, Masonry <br /> Contractor and a representative from the WRB manufacturer (Dryvit). A meeting was held <br /> on May 15th, (attached are my meeting notes). After walking the project site with the Dryvit <br /> Representative (Josh Rupe) and discussing the installation of the masonry, Josh agreed <br /> that the alternate flashing detail was an approved application for the Dryvit products. <br /> I requested a letter from Dryvit specifically directed to the revised detail that I provided. I <br /> have received the approval letter, and based on the manufactures product data, and <br /> statement that the Dryvit liquid applied WRB is a fit for purpose and is warrantable for use <br /> as drawn for the vertical wall, I agree that the alternate cmu flashing you have proposed is <br /> suitable to comply with Code section 1405.4. Section 1405.4 requires fleshings to be <br /> installed in such a manner to prevent moisture from entering the wall or to redirect it to the <br /> exterior. The WRB assembly and masonry cap flashing will prevent moisture from entering <br /> the wall. The concrete shelf below floor grade, weep holes and positive drainage sloping <br /> away from the base of the cmu toward area drains will redirect moisture to the exterior. <br /> I have prepared an application for revision to approved plans as required by Marion County. <br /> You will need to submit the proposed revision to Marion County for review and approval <br /> prior to completing the masonry installation. <br /> Sincerely, <br /> Don Johnson <br /> Architect, NCARB <br /> End:Application for Revision <br /> Don Johnson_Nchited 280645'^Ct Se 541-990-8390 <br /> Albany,Or 97322 <br />