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Mr. John Hadley <br />EMA Investments, LLC <br />Plan Check Number: B1809-011, First Review <br />December 12, 2018 <br />g. The balcony includes a guard on the west side. A detail for the guard shall be provided <br />in the construction documents. The guard shall consist on non-combustible <br />construction. The guard shall have a minimum height of 42 inches per IBC Section <br />1015.3. <br />h. The floor framing above the balcony separates the A-2 occupancy from the space above. <br />The floor system shall be a 1-hour horizontal assembly. A detail shall be provided <br />including a reference to a listed assembly. <br />i. Continuing with the previous comment, the construction of the 1-hour assembly shall be <br />appropriate for exterior conditions exposed to weather. See IBC Section 2508.2. <br />j. The floor above the balcony constitutes part of the exterior building envelop. The floor <br />shall be provide with a minimum insulation of R=30 per WSEC-15 Table C402.1.3. <br />30. The Partial Floor Plan on Sheet 1-of-2 has been revised to specify a light -weight concrete <br />topping on the existing slab -on -grade. See IBC Section 107.2.1. The following comments <br />should be addressed: <br />a. The minimum strength of the concrete should be specified. Note that structural light- <br />weight concrete should be used. Insulation -grade concrete is not suitable. <br />b. The required extent of the topping layer is unclear. It appears intended for the General <br />Table Area only, but may extend throughout the project area. The extent should be <br />clearly shown. If the layer does not extend throughout the project area, transitions shall <br />be provided at the doorways to other spaces. Paths to other spaces shall be accessible. <br />c. Section C-2/1-of-2 indicates a 10-foot clearance to the floor slab. However, this same <br />clearance was specified in the original drawings prior to the addition of the topping <br />layer. The clearances should be verified, including the minimum doorway heights. <br />d. The required thickness of the topping layer is unclear. It appears the layer has a <br />minimum thickness of 3inches at the east end and a maximum thickness of 11 inches at <br />the west end. The slab should be provided with reinforcement for crack control, <br />particularly at the thicker areas. <br />e. The slab includes a stairway at the west end. A detail for the construction shall be <br />provided. <br />f. The east end of the area includes two existing storage areas that have doorway access <br />to both the General Table Area and the Exit Corridor per Sheet 1-of-2. A transition of <br />the floor elevations has not been provided through the storage rooms to address the <br />minimum 3-inch step between the existing and leveled surfaces. <br />g. The south end of the area includes Classroom 1. Doors provide a continuous path for <br />the project area to an existing hallway. A transition of the floor elevations from the <br />topping layer to the unchanged hallway floor elevation has not been provided. <br />31. The Partial Floor Plan on Sheet 1-of-2 shows a new stairway at the west end of the General <br />Table Area. The following comments shall be addressed: <br />a. A detail for the construction shall be provided. See IBC Sections 107.2.1 and 1011. <br />b. The stairway shows a single handrail on the south side. Handrails shall be provided on <br />each side per IBC Section 1011.11. <br />c. The handrails appear to be supported by partial -height walls. The supporting walls shall <br />be design to support lateral loading per IBC Section 1607.8.1. The connections of the <br />walls to the slab -on -grade shall similarly be designed for these loads. <br />0 3200 Cedar Street 425.257.8800 everettpw@everettwa.gov <br />Everett, WA 98201 425.257.8882 fax everettwa.gov <br />