HomeMy WebLinkAboutCA_RentonPrepStudentOccupancy_191108_v1.pdfDr. David Paul Zimmerman
From: Steve Hammer <steve@bpharch.com>
Sent: Friday, November 8, 2019 12:47 PM
To: Dr. David Paul Zimmerman
Cc: DPZ
Subject: Renton Prep Christian School - student population
Attachments: 1903E-FP3 OCCUPANCY.pdf; 1903E-FP1 OCCUPANCY.pdf, 1903E-FP3 OCCUPANCY.pdf,
1903E-FP4 OCCUPANCY.pdf
David -Paul,
The occupant load for the school on the main and 3rd floors is based on 20 square foot per person, as indicated in
Chapter 10, Table 1004.1.2 MAXIMUM FLOOR AREA ALLOWANCES PER OCCUPANT, of the 2015 IBC (International
Building Code), attached.
As you know, this is much lower square foot per person than what you will actually use. Actual use will generally be
closer to 34 SF per student.
An assembly occupancy on the 4th floor would be based on 7 square foot per person for Assembly - Concentrated
(chairs only) or 15 square foot per person for Assembly — Unconcentrated (tables and chairs). A room with an occupant
load over 50 is generally considered an assembly room and requires 2 exits with the doors opening out in the direction
of travel with panic devices and exit signs. You would need to add one exit door as shown.
Offices (Business Occupancy) is based on 100 square foot per person.
Attached are the floor plans for the Main, 3rd and 4th floors for reference.
Main floor
277 occupants in classrooms and office/study rooms
excludes hallways, toilets/lockers, storage rooms and kitchen
excludes common areas (lobby, elevator, and stairs)
3rd Floor
134 occupants in classrooms
excludes hallways, toilets, custodian and kitchen
excludes common areas (lobby, elevator, and stairs)
Total occupant load of classroom areas on both floors
411 occupants
4th Floor
Assembly area 193 occupants (at 15 SF per person, it would be 90 occupants)
Offices 16 (assumes alcove on the NW corner is an office)
Excludes reception, hallway and common areas.
Change to Assembly occupancy from business occupancy may trigger the need to meet the handicap code for
toilets. The current 4th floor toilets don't meet current required clearances.
Actual Student Population
At 34 SF per student in classrooms, figure 411 x 20 / 34 = approximately 242 student population.
I hope this helps. Let me know if you need anything else.
Thanks.
Steve Hammer
BPH Architects
(425) 774-4701, Ext. 14
steve6ftharch.com
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