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2015-0375 Mietzner SFR - Williams.pdf City of Edmonds PLAN REVIEW COMMENTS BUILDING DIVISION (425) 771-0220 DATE: April 30, 2015 TO: Mietzner Brothers Properties, LLC mikem@mietznergroup.com FROM: Chuck Miller, Plans Examiner RE: Plan Check: BLD2015-0375 Project: Mietzner SFR th Project Address: 20607 85 Place W During a review of the plans by the Building Division for the above noted project, it was found that the following information, clarifications, or changes are needed. A complete review cannot be performed until the revised plans/documents, including a written response indicating where the ‘clouded’ or otherwise highlighted changes can be found on the revised plans, have been submitted to a Permit Coordinator. Reviews by other divisions, such as Planning, Engineering, or Fire, may result in additional comments. On sheet A1 – Elevations: 1.Right (South) – Clarify the difference in the location of the window in the south wall of ‘Bedroom 3’ and of that represented on sheet ‘A3’ – Foundation. On sheet A2 – Elevations/Sections & Details: 2.Rear - Clarify the difference in the location of the window in the east wall of ‘Kitchen’ and of that represented on sheet ‘A4’ – First Floor. On sheet A3 – Foundation: 3.Foundation/Basement a.Clarify the difference in the location and the length of the shearwalls along the east wall of the ‘Bonus/Rec Room’ and of that indicated in the provided structural calculations. b.Indicate on the plans the required minimum beam to be used to support the loads over the window in the east wall of the ‘Bonus/Rec Room’. The ‘typical’ 4x8 DF #2 appears to be over spanned and fails in bending and in shear. c.Indicate on the plans the required minimum beam to be used to support the loads over the door in the east wall of the ‘Bonus/Rec Room’. The ‘typical’ 4x8 DF #2 appears to be over spanned, fails in bending and in shear, and deflects beyond that allowed per IRC Table R301.7. d.Indicate on the plans the required minimum beam to be used to support the loads over the window in the east wall of the ‘Bedroom 4’. The ‘typical’ 4x8 DF #2 appears to be over spanned and fails in bending and in shear. e.Indicate on the plans the required ‘widened’ footing to support the loads below the north end of the beam over the window in the east wall of ‘Bedroom 4’. The ‘typical’ footing appears to be undersized for the loads anticipated by the represented construction. f.Clarify the callout for the pressure-preservative treated 2x10 HF #2 to be used as deck joists. They appear to be over spanned and fail in bending. g.Clarify the difference in the ‘on-center’ spacing of the deck joists noted and of that indicated in the referenced detail on sheet ‘A/6’. h.Indicate on the plans the required ‘widened’ footings to support the loads below each end of the girder truss over the ‘Garage’. The ‘typical’ footing appears to be undersized for the loads anticipated by the represented construction. i.Clearly identify on the plans the locations where each of the different foundation designs (details 4/A3 and 7/A3) are to be used. Support for the selections should be provided by the foundation designer. j.Provide on the plans a detail, and a reference to it, for the required construction of the interior bearing wall footings in the ‘slab-on-grade’ area of the basement. 4.Detail 4 – Typical Cantilevered Foundation Wall - and Detail 7 – Top Restrained Foundation Wall – Provide stamped and signed structural calculations (referencing the currently adopted code version) supporting the foundation wall designs. They appear be beyond the prescriptive criteria of International Residential Code (IRC) R404. On sheet A4 – First Floor: 5.First Floor a.Indicate on the plans the required carbon monoxide alarm outside of the sleeping area in the immediate vicinity of the ‘Office/Den/Bedroom 2’ per IRC R315. b.Indicate on the plans the required safety glazing for the window in the north wall of the ‘Bathroom’ adjacent the garage per IRC R308.4.5. c.Indicate on the plans the required dwelling/garage opening protection per IRC R302.5.1. d.Indicate on the plans the required safety glazing for the window in the west wall at the stair landing per IRC R308.4.7. e.Indicate on the plans the required safety glazing for the window in the south wall of the ‘Master Bathroom’ per IRC R308.4.5. f.Clarify the callout for the 4x12 HF #2 beam to be used to support the loads over the east window in the ‘Master Suite’. It appears to be over spanned and fails in bending. The loads from the east end of the girder truss do not appear to have been accounted for in the provided beam calculations. g.Clarify the callout for the 4x8 HF #2 beam to be used to support the loads over the east window in the ‘Great Room’. It appears to be over spanned and fails in bending and in shear. The loads from the east end of the girder truss do not appear to have been accounted for in the provided beam calculations. h.Indicate on the plans the required minimum beams to be used to support the loads over the ‘Covered Outdoor Living’. Page 2 of 3 6.Electrical Legend – Change on the plans the code section regarding smoke alarms (detectors) from ‘310.9.1’ to ‘R314’. On sheet A6 – Details: 7.Detail 1 – Roof Diaphragm to Interior Shearwall, Typical – and Detail 2 – Shearwall Around Opening Construction – Provide on the plans a stamp/acknowledgement by the engineer of record for the non-prescriptive design work represented. 8.Detail 20 – Typical Stair Detail a.Clarify the note to “Firestop adjacent walls per 708.2.1.”. b.Change on the plans the code section regarding handrails from ‘R311.5.6.2’ to ‘R311.7.8.2’. On sheet A7 – Structural Notes/Tables: 9.Provide on the plans a stamp/acknowledgement by the engineer of record for the non- prescriptive design work represented. On sheet A8 – Specifications: 10.Ventilation and Indoor Air Quality Control – 2012 Code a.Insulation – Clarify the references to WSEC Table 4-16 and Table 4-1. There are no such tables in the 2012 WSEC. b.Freeze Protection – Change on the plans the code section regarding piping insulation from ‘R312.6’ to ‘UPC 312.6’. c.Window Sills – Add to the plans the third exception to the window fall protection sill height requirements per the 2012 IRC. d.Certificate - Change on the plans the code section regarding the energy efficiency compliance certificate from ‘R401.3’ to ‘WSEC 401.3’. 11.General Specifications a.Stairs – Change on the plans the code section regarding stairs from ‘R311.5’ to ‘R311.7’. b.Building Occupancy – Update on the plans (or eliminate) the information to reflect that adopted per 2012 IRC/IBC. c.Smoke Detectors – Change on the plans the code section regarding smoke alarms (detectors) from ‘R313.1’ to ‘R314.1’. Page 3 of 3