Loading...
2014-1246 GBH Holdings remodel - TGBA2.pdf City of Edmonds PLAN REVIEW COMMENTS BUILDING DIVISION (425) 771-0220 DATE: February 24, 2015 TO: TGB Architects sbutterfield@tgbarchitects.com FROM: Chuck Miller, Plans Examiner RE: Plan Check: BLD2014-1246 Project: GBH Holdings remodel Project Address: 311 Edmonds Street 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 sheets A0.11, A2.01, A2.11, and A7.01: 1.Clarify the note “Unoccupied existing structure to be demolished or boarded up per City requirements (1 story).”. There are no ‘City requirements’ that the existing structure be demolished or boarded up. The one-story portion on the west-side of the structure can remain and be utilized as previously permitted. If work to be completed under a separate permit, such as that proposed during the ‘pre-application’ meeting (PRE2015-0001), requires the removal of a portion of the existing structure, the demolition can be done under a separate permit or included in the scope of work of this permit with corresponding notes made on the plans. The role of the City is to provide regulatory oversight of the work proposed on the permit application and the submitted construction documents by the applicant. On sheet A2.01: 2.Code Analysis – Tenant Improvement – Update the provided information to reflect the proposed work as follows: a.The square footage noted in the ‘Occupancy Classifications’ b.The ‘Accessory Storage Area’ occupant load On sheet A2.11: 3.Partition-Type: Assembly Legend a.Partition ‘22/a’ - Include on the plans the ‘system type’ and the required installation criteria of each of the various components (floor and ceiling runner dimensions, steel stud dimensions, furring channels, fasteners and their spacing) for the attachment of the gypsum wallboard of the 2-hour fire resistance rated Underwriter’s Laboratory (UL) design ‘U415’ to guide proper construction and inspection. b.Partition ‘11/a’ – Change on the plans the provided fire-resistance of UL design ‘U905’ to meet that required for the exterior-side protection of the walls supporting the 2-hour fire-resistance rated floor/ceiling assembly per IBC 711.4. c.Partition ‘T/83/a’ – Clarify the use of IBC Table 722.6.2 (1) for the proposed construction of the required 2-hour fire-resistance rated walls to be used to support the 2-hour fire-resistance rated floor/ceiling assembly. The maximum fire-resistance rating calculated for assemblies using the methods in IBC 722.6 is one hour per IBC 722.6.1.1. On sheet A2.12: 4.Detail 2 - East Elevation - Clarify the note “Area under existing stairway enclosed per City requirements.”. There are no ‘City requirements’ that the stairway be enclosed. The concern was the noted use “Existing garbage cans under stairs” on the previously submitted construction documents. As long as the open space under the exterior stairway is not used for any purpose per IBC 1009.9.4, the stairway can remain and be utilized as previously permitted. Enclosing the area under the stairway increases the likelihood that the area under the stairs would be used for prohibited purposes while making it more difficult to detect, unless specifically designed and protected per IBC 1009.9.4. 5.Detail 3 – West Elevation a.Opening Area Calculations – The openings in the second story on the west-side of the structure can remain and be utilized as previously permitted. However, if work is completed under a separate permit, such as that proposed during the ‘pre-application’ meeting (PRE2015-0001), only 10% of the wall area on any story in a nonsprinklered structure can be unprotected, with the remaining openings protected per IBC 716.6. Work can be done under a separate permit or included in the scope of work of this permit, with corresponding notes made on the plans that indicate the method of protection to be provided for the second floor openings beyond that allowed per IBC Table 705.8. b.Change on the plans the provided fire-resistance rated construction of the ‘CMU’ wall to that provided by UL design ‘U905’ referenced on sheet A2.11. On sheet A8.01: 6.Detail 3 - 2-Hour Fire-Rated Column Wrap – Include on the plans the required installation criteria of the various components (steel stud dimensions, corner beads, tie wire, fasteners and their spacing) for the attachment of the gypsum wallboard of the 2-hour fire-resistance rated UL design ‘X528’ to guide proper construction and inspection. Page 2 of 3 7.Detail 16 – 2-Hr Protection @ Beam - Clarify the use of IBC 722.6.3 for the proposed protection of the beams to be used to support the 2-hour fire-resistance rated floor/ceiling assembly. The maximum fire-resistance rating calculated for assemblies using the methods in IBC 722.6 is one hour per IBC 722.6.1.1. On sheet S2.1: 8.Detail 1 – Foundation Plan - and Detail 2 Second Floor Framing Plan a.Clarify the difference in the wall opening indicated in the west wall of ‘Space 101’ – Entry/Reception – and that represented on sheet ‘A2.11’ – Floor Plan – on sheet ‘A2.12’ – West Elevation (including ‘Opening Area Calculations’) – and on sheet ‘A7.01’ – Ceiling Plan. The plans should consistently represent the proposed construction to guide proper review, installation, and inspection. b.Clarify the difference in the wall opening indicated in the west wall of ‘Space 105’ – Kitchen – and that represented on sheet ‘A2.11’ – Floor Plan – on sheet ‘A2.12’ – West Elevation (including ‘Opening Area Calculations’) – and on sheet ‘A7.01’ – Ceiling Plan. The plans should consistently represent the proposed construction to guide proper review, installation, and inspection. 9.Detail 2 - Second Floor Framing Plan a.Clarify the callout for the ‘HSS 4x4x1/8’ columns below the ends of the 5-1/8x15 GLBs to be used to support the second floor framing. They do not appear to meet the minimum requirements of the proposed 2-hour fire-resistance rated construction of UL design number ‘X528’. b.Clarify the callout for the 5-1/8x15 GLBs to be used to support the floor framing over space ‘107’ – Office 2 - and the north-most portion of space ‘102’ – Open Office. They appear to be over spanned and fail in bending – see attachments. Page 3 of 3