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BLD18-0447 - Northpoint Recovery - (NS Rvw-2, dbeck, 7-23-2018).doc July 23, 2018 Leif Bjorback Building Official City of Edmonds 121 5th Avenue North Edmonds, WA 98020-3145 Subject: Northpoint Recovery (Non-structural Review – 2nd) Permit: BLD18-0447 Per your request, Beck & Associates has completed a 2nd non-structural review of the drawings and calculations for conformance with the 2015 International Building Code (IBC), as adopted and amended by the State of Washington (WSA) and the City of Edmonds (ECC). Our review of the plans and calculations indicates that corrections are necessary prior to permit issuance. The applicant should address the following comments in itemized letter format in addition to making corrections & revisions to the drawings. Corrections and revisions to the drawing should be clouded so that they are clearly identifiable. _______________________________________________________________________ Legend: Faded text = initial comment adequately addressed – no further action required Plain text = initial comment (these remain where an additional comment is made) Blue text = additional comment in response to the resubmittal General WA State Department of Health (WA DOH) Provide documentation from WA DOH: Provide documentation that demonstrates the acceptance of WA DOH of the proposed occupancies (I-1 Condition 2 on Level 2; B on Level 1). Provide documentation that demonstrates that WA DOH does not view this facility as an ambulatory care facility (people are never rendered incapable of self-preservation by the services provided). Provide documentation that demonstrates the acceptance of WA DOH of the maximum occupant loads identified on sheet G1.00 (44 patience, 20 staff, 44 visitors). Documentation from Clynn Wilkinson-DOH on 5/15/2018 indicates that the number of staff and visitors are not limited by DOH. Therefore, occupant loads for the building and for egress purposes are required to be based on the IBC. Specifically, reference Table 1004.1.2. Revise the egress analysis accordingly. Level 2: The occupancy of residential rooms can be based on the number of patience (as limited by DOH). All other spaces (hallways, nurse stations, showers, etc., including the remainder of the floor area) could reasonably be based on 100sf/occupant. Level 1: The Main Lobby/Reception occupant load should be based on an occupant load factor of 15sf/occupant, max. The Multipurpose Room should be based on an occupant load factor of 15sf/occupant, max. All conference rooms and Group Education should be based on an occupant load of 15sf/occupant, max. All other spaces (hallways, offices, toilets, etc., including the remainder of the floor area) could reasonably be based on 100sf/occupant. Fire and Life Safety Standards Code Review - sheet G1.00 Provide an analysis on sheet G1.00, based on the IBC, which demonstrates that the allowable heights, number of stories, and allowable floor and building areas are met given the proposed construction type, sprinklers, and occupancies. Ch. 5 Provide an analysis on sheet G1.00, based on Table 602, which demonstrates the exterior walls are not required to be rated, based on fire-separation distance and occupancies. Table 602 Provide documentation on sheet G1.00 that demonstrates the refuge area required by 420.4.1 is provided within each smoke compartment. 420.4.1 Reference the Patient Room Door Closer section. All of the requirements of 716.5.9, exception 3 need to be identified (each floor is required to be attended by staff on a 24-hour basis and stationed on that floor; doors are required to be equipped with positive latching; sleeping units are required to be equipped with a smoke detection system required by Section 907.2.6.1). 716.5.9 Three toilet rooms are provided on Level 1. The code requires separate facilities to be provided for each sex. Label the toilet rooms for male or female on Level 1. 2902.2 Fire and Life Safety Plans (G2.10, G2.20) Reference the Door Assemblies in the Legend. 45-minute rated doors that are located in corridors are also required to be provided with an ‘S’ label. This needs to be specified as there are several locations where this occurs. 716.5.3 Site Plan (sheet A1.00) Accessible parking spaces are required to be provided on the shortest accessible route of travel from adjacent parking to the accessible building entrance. Additionally, the accessible route of travel is not permitted (where practical, as it is in this case) to cross lanes of vehicular traffic. Revise accessible parking locations so that crossing traffic lanes is not required and so that the route of travel is the shortest possible. 1106.6 Provide dimensions and detailing for signage for accessible parking to demonstrate compliance with code requirements. ICC A117.1-09, 502.7 At least one of the passenger loading (drop-off) zones is required to be accessible. Provide complete dimensioning and detailing to demonstrate compliance. 1106.,7; ICC A117.1-09, 503 The Site Plan needs to identify the shortest fire-separation distance (distance measured perpendicular to the building to the adjacent property line) on each side of the building. Provide an analysis for exterior wall rating per Table 602 based on the fire separation distances. While exterior walls may not be required to be rated, the analysis needs to be shown on the plans. Table 602 Roof Plan (sheet A2.00) The Roof Plan needs to be coordinated with the mechanical plans. Identify the location of all roof openings. Identify the location of all mechanical units, consistent with the mechanical drawings. Level 1 - Plan (sheet A2.10) Reference the Stairs. The stairs are required to be fully enclosed in 1-hour rated construction. 1023.2 Provide detailing to demonstrate how the 1-hour rated enclosure (fire barriers) will be maintained, particularly at the intersection at the upper floor level and at the intersection with the rated roof construction. Identify all connections. Reference A2.10 – Level 1 Plan. The assembly types of the walls at the south and east sides of the bottom stair landing (Stair 140) are currently not specified. These are required to be 1-hour rated assemblies. Please update the plans accordingly. The exit enclosure is required to be extended to the exit discharge (exterior of the building) unless one of the exceptions of 1028.1 is met. Update the plans to demonstrate that these requirements will be met. 1028.1 The elevator is not permitted to open into the interior exit stairway enclosure. Revise the plans accordingly. 1023.4 The plans show a storage room located under the stairs. The walls and soffits within enclosed usable spaces under stairways are required to be protected by 1-hour fire-resistance-rated construction. Additionally, access to the enclosed space is not permitted to be directly from within the stair enclosure. Update the plans and provide complete detailing to demonstrate compliance. Identify the listed, tested assemblies to be used to provide the required rated construction and provide complete detailing for construction and inspection. The door to the usable space under the stairs is required to be 1-hour rated. 1011.7.3 In order to provide corridor continuity to the exit discharge, the following are required. 1020.6 Door 104 is required to be 20-minute rated. 716.5.3 The wall between the Admin/Consulting (105) and the Waiting Room (102) is required to be 1-hour rated. 1020.6 Door 101A needs to be included in the Door Schedule. It is required to be provided with panic hardware. 1010.1.10 Door 101A is required to be provided with panic hardware on the egress side. This remains to be identified in the Door Schedule. The Elevator Mechanical Room (135) is required to be provided with a 60-minute rated door. Update the Door Schedule accordingly. 3002.1, 3005.4, 713, 716.5 Level 2 - Plan (sheet A2.20) Door 253 (door between the Closet and the corridor) needs to be included in the Door Schedule. It is required to be 20-minute rated. 1020; 716.5.3 Partition Types (sheets A2.40 & A2.41) Walls, partitions, and floor/ceiling assemblies separating sleeping units from each other and from other occupancies are required to have an STC rating of not less than 50. 1207.2 Partition Type R14 is typically specified between sleeping units and the corridor. However, R14 is shown to have an STC rating of only 45-49. Revise the design accordingly to meet the required STC rating. 1207.2 The wall between Women’s Room 222 and the corridor is specified to be Wall Type S14. This partition type is not specified to have an STC rating. Revise the plans accordingly. 1207.2 Reference wall type SH1. Identify the listed, tested assembly for this required 1-hour rated wall. Provide complete detailing for construction and inspection. Reference wall type S – 1 Hour Rated Smoke Barrier. Identify the listed, tested assembly for this required 1-hour rated wall. Provide complete detailing for construction and inspection. The assembly is now identified as UL U419. However, complete specifications for construction and inspection, consistent with the assembly, remain to be provided. Fire Rated Details (sheet A9.01 & A9/01A) Reference 6/A9.01 – One Hour Rated Floor/Ceiling Assembly. The floor assembly is required to have an STC rating of 50 or greater. Identify the listed STC rating for this assembly. 1207.3 Specify the thickness of batt insulation required in order to achieve the STC rating (50, min) and impact insulation class rating (50, min). Reference 7/A9.01 – One Hour Rated Roof Assembly. This system, while similar to UL L516, does not exactly meet any of the systems identified in UL L516. Identify a listed, tested assembly and provide detailing that matches that assembly. Please be aware that if proprietary gypsum board products are required by the assembly, that proprietary gypsum board is required to be specified in the detail. Reference 5/A901 – Rated Ceiling at Glulam . . . . Provide documentation that demonstrates that all of the glulam beams maintain a 1-hour rating, consistent with the floor-ceiling assembly rating. If this cannot be provided, an alternate means of providing the 1-hour rating at the glulam beams is required to be provided. The City and B&A have found Option 1, the preferred option, to be acceptable for maintaining the required 1-hour rating at the GLBs. Update the plans/details to specify Option 1 requirements only. Options 2 & 3 and associated requirements/details should be removed from the plans. Reference detail 3/A9.00C. The detail shows the GLB exposed. It is required to be protected per Option 1. Update the detail accordingly. Reference 5/A9.01. Update the detail to specify only the requirements for Option 1, which we have found acceptable. Other options should be removed from the detail. Reference 8 & 9/A9.01A. Details 8 & 9/A9.01A should be removed from the plan set as Option 1 is chosen and Options 2 & 3 are not approved. Reference 1 & 2/A9.01B. Both of these details provide options for rating of the GLBs. However, the GLBs, in accordance with Option 1, will need to be wrapped with (2) layers of Type ‘X’ GWB. The shaft option should be removed from the details. Provide documentation of the listed fire/smoke sealant that maintains a 1-hour rating when sealing the joint between GWB and glulam beams. An alternate means of providing the 1-hour rating will be required if the documentation does not address this specific condition. Another option would be to have the manufacturer or a fire protection engineer address this issue. Reference 3/G3.01. The detail specifies that the glulam is exposed. Provide documentation that demonstrates that the required 1-hour rating is maintained. This item remains to be addressed. The detail still shows a GL beam that is exposed. Provide coordination. Accessibility (IBC Chapter 11: ICC A117.1-09) Provide complete dimensioning and detailing of accessible toilets, showers, and sinks. All elements need to be addressed, including clear floor spaces, knee & toe clearance, grab bars, control locations, etc. Address each condition. 1109.2; ICC A117.1-09, Ch. 6 Accessible transfer-type shower specifications, detailing, and dimensioning remain to be provided within the drawing set. Address grab bars and seats. ICC A117.1-09 608.3.1, 610.3 Where multiple single-user toilet rooms or bathing rooms are clustered at a single location, at least 50 percent for each use at each cluster are required to be accessible. Update the plans to identify all accessible toilet/shower rooms. 1109.2, exception 3 Energy (2015 WSEC) Provide a lighting power analysis that demonstrates the proposed lighting will not exceed the allowable. C505, C405.2 Other Provide structural analysis and complete design for both the Trash Enclosure and the Gas Meter Enclosure. Reference sheet A1.10. Ch. 16 Reference sheet A2.00. Identify the distance from the edge of the roof access hatch to the edge of the roof. A guard is required if the distance is less than 10’-0”. Update the plans accordingly. 1015.7 Reference sheet A2.50, Relite Types. On the plans, identify the location of each relite type, giving particular attention to locations where relites are required to be rated. Toilet, bath, and shower room floor finish materials (smooth, hard, non-absorbent surface) is required to extend upward onto the walls not less than 4 inches. Providing a rubber base does not meet this criteria. The flooring material itself is required to extend upward onto the wall so that a joint is not created which may become unstanitary. PT Toilet 120 specifies rubber base. Revise the Finish Schedule (F1.00) accordingly. 1210.2.1 New Comments Reference A2.20 – Level 2 Plan and 9/A5.00. Where drinking fountains are located on a floor, the code requires that a minimum of two drinking fountains be provided. One drinking fountain is required to comply with the requirements for people who use a wheelchair and one is required to comply with the requirements for standing persons. Currently, only a single drinking fountain (combined fountain and bottle filling station) is provided on Level 2. The drinking fountain complies with requirements for drinking fountains for standing persons (38”-43” spout height). Additionally, a drinking fountain for persons in wheelchairs is required to be provided. Please note that a bottle filling station is only permitted to substitute for drinking fountain if three or more drinking fountains are required. Update the plans accordingly and provide dimensioning that demonstrates compliance with the codes. IBC 1109.5, 2902.5; ICC A117.1-09, 602 Reference A2.40, Wall Type A6. Identify the listed, tested assembly for this required 1-hour rated wall. Provide complete detailing for construction and inspection. Reference A2.40, Wall Type S14/S14A/S16. Provide complete detailing/specifications of the identified assembly (UL U419) for construction and inspection. Reference 1/A2.40 – Deflection Track for Fire Partition. The identified assembly (UL No. HW-D-0550) is for a floor-ceiling assembly constructed of steel joists. Provide a head of wall detail/assembly that is consistent with the conditions on this project. Please contact me should you have any questions. Respectfully, Douglas Beck, PE, SE Beck & Associates, PLLC BLD18-0447 (NS Rvw – 2nd) July 23, 2018 Page 6 of 6 16425 SE 66th Street, Bellevue, WA 98006 ● beckpllc@msn.com ● PH: 206-313-3739 Beck & Associates, PLLC Structural Engineering & Code Consulting 16425 SE 66th Street, Bellevue, WA 98006 ● beckpllc@msn.com ● PH: 206-313-3739