3617 COLBY AVE 2018-09-07 - Laserfiche WebLink

4. The guards surrounding the deck and stairs should be shown to be a minimum of 42 inches in height. Section 1013.2 5. The maximum stair rise should be shown to be no greater than 7 inches on the plans. Section 1009.3 6. The minimum stair run should be shown to be 11 inches on the plans. Section 1009.3 7. Handrails should be shown at each side of the stairs. For non-continuous handrails (through the landing) the handrails should extend horizontally a minimum of 12 inches beyond the top riser of each stair run. The bottoms of the handrails should continue to slope for the depth of one tread beyond the bottom riser. Section 1012.5 8. EBC Table 1607.1 requires stairs and exit decks to support a live load of 100 psf. This loading would cause the allowable bending stresses to be exceeded in the proposed joists and beams. Calculations prepared by a design professional licensed by the State of Washington should be submitted to verify that the specified loads are designed for. 9. EBC Table 1607.7 requires guardrails to be capable of resisting a 50 pound per lineal foot or 200 pound concentrated load applied at the top. The proposed design indicates the use of two 2x8's bolted to the rim joist to utilize weak axis bending. This combined with a proposed drainage gap at the sill plate appears inadequate. Calculations prepared by a design professional licensed by the State of Washington should be submitted to verify that the specified loads are designed for. Please provide a response letter, which shows where each item in this correction letter is addressed on the plan set. Upon resubmission of the drawings, your application will be given priority and plan review will begin. All required submittals must be of sufficient detail and contain sufficient information to ensure that the proposed structure will be constructed in compliance with all adopted codes. Sincerely, Tony Lee -� Assistant Building Official (71/1' kathy/IeeB1006-035(3617 Colby) �s�