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Drew Martin <br />From: Drew Martin <br />Sent: Tuesday, October 5, 2021 1:28 PM <br />To: permit@catchstudio.com <br />Subject: City of Everett Permit Services: 2616 Colby Avenue (M2110-07) - First Building Review <br />Hello, Rochelle. <br />This email recaps our conversation, and will serve as the First Review letter. Two copies of the revised drawings should <br />be submitted. An itemized response letter addressing the review comments should be provided. <br />The following comments should be addressed: <br />1. The weights of the new RTU-1 and suspended heater should be listed in the drawings. Note that the building <br />drawings indicate that heater as existing, but the mechanical drawings state it as new. <br />2. The calculations for the joists supporting the RTU-1 include a dead load of 50 lbs. Per the schedule, the unit <br />appears to weight at least 200 Ibs, not include other components (e.g., curb, etc.). The unit weight is spread to <br />three joists, but still appears higher than considered in the calculations. The joists supporting the RTU-1 also <br />support other equipment (e.g., roof top fans, Type 1 hoods below), but these are not included in the <br />analysis. Note that the analysis indicates the joists are slightly overstressed; the additional loading will increase <br />the level of overstress. Revised calculations should be submitted. <br />3. The heater weight in the calculations is not clear. Note that if the actual weight is closer to 200 lb, and the <br />weight is distributed to only three joists, these joists may be similarly overstressed. The calculation does not <br />appear to consider other unit weights loading the same joists as the heater. <br />4. Continuing with Comments 2 and 3, supplemental framing may be required. A minor modification to the joists, <br />such as adding sistered framing to the overstressed joists, may be acceptable in the mechanical permit. More <br />substantial modifications and additions to the roof framing will require either a separate building permit, or a <br />revision to the previously issued Building permit under File No. B2002-033. <br />Please let me know if you have questions. <br />— Drew Martin, P.E., S.E. <br />Associate Engineer —Commercial Plans Examiner I Permit Services <br />425.257.8810 13200 Cedar Street, 2nd Floor, Everett, WA 98201 <br />EVERETT Phone Hours: M/W/T: 8 am - 12 pm & 1 pm — 3 pm; Tu: 1:OOpm-3:OOpm <br />everettwa.gov/permits I Facebook I Twitter <br />Note: Emails and attachments sent to and from the City of Everett are public records and may be subject to disclosure pursuant to the Public <br />Records Act. <br />