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Mr. Douglas Acheson <br />2506 Baker Avenue <br />Plan Check Number: B2005-039, First Building Review <br />June 9, 2020 <br />located in alley parking lot (Section 1) it is not planned to use pressure treated lumber. <br />Proposed post are SELECT STRUCTURAL GRADE KDHT D-FIR, treated below the deck and at <br />the base foundations with COPPER -GREEN WOOD PRESERVATIVE and coated in the visible <br />area above the deck and under the roof with PENOFIN ULTRA PREMIUM RED LABEL. The <br />foundation plan new "Detail 2" shows 3" concrete coverage on all sides of the post and 8" <br />above ground concrete coverage. <br />Gravity System: <br />Calculations should be submitted substantiating the design of the structural framing. The <br />design should consider the applicable load combinations per IBC Section 1605 for the combined <br />effects of dead, live, snow, wind, and seismic loading. Loads from the existing deck should be <br />included where supported by the new posts and foundations. See IBC Sections 1604.1, 1604.2, <br />and 1604.4. The evaluations should include, but are not limited to: <br />a. Foundations. <br />b. Posts. <br />c. Glulam beams, including cantilevers. <br />d. Roof decking, including cantilever. <br />e. Connections between the existing deck framing and posts. <br />f. Connections between the posts and glulam beams. <br />g. Connections between the roof decking and glulam beams, including uplift from wind and <br />unbalanced wind and snow loading on the cantilever. <br />Per our phone conversation on 6/29/20, I have tried to provide improved drawings <br />requested showing better detail of the proposed awning framing and lumber <br />specifications that hopefully are sufficient for you to calculate load values. If any <br />additional information is needed please let me know. <br />8. The space under the roof is unheated, and the roof is susceptible to snow drifts from the <br />adjacent building roof. The snow load on the roof should be calculated per ASCE 7-10 Chapter <br />7. Unbalanced loads and drifts per Sections 7.6 and 7.7, respectively, should be considered in <br />the design. See IBC Section 1608.1. <br />I believe I have overengineered the proposed awning framing structure to support <br />snow drifts from the adjacent building roof. Please keep in mind an additional aspect <br />that may easily be missed: The proposed 8'x26' awning will be located 6" below the <br />roof eave and 1' of the proposed awning will be located inside the existing roof eave. <br />The roof eve is 30' wide while the proposed awning is 26' wide. The effect of this <br />overlap is a 7'x26' expanded roof area that will be directly exposed to precipitation in <br />the form of rain or snow. <br />9. The following comments should be addressed for the post-to-glulam beam connection detail: <br />a. The framing is fastened together using 3/8-inch bolts. The minimum spacing, edge, and <br />end distances for the bolts should be specified. See IBC Section 2306.1 and AWC NDS-15 <br />Section 12.5. <br />Post to beam connection and bolt spacing is shown in new "Detail 1" <br />S3200 Cedar Street © 425.257.8810 (Op everetteps@everettwa.gov <br />Everett, WA 98201 425.257.8857 fax everettwa.gov/permits <br />