Fenestration_Exhibit_2026_0610.pdf
PDF 6 MB Posted
- Solicitation number
- RFQ-036-3075805-JM
- Issued by
- Orange County, San Diego City, California
About this file
This is a fenestration exhibit and site plan document prepared for the County of Orange's Progressive Design Build for a New Emergency Operations Center in Tustin, California, dated June 10, 2026. The exhibit provides illustrative site plans, conceptual elevations, and detailed floor plans for the facility's exterior envelope and fenestration design. The project includes a multi-level building with Level 01 at 0'-0" and Level 02 at 14'-0", with a roof elevation at 30'-5". Key site elements include a proposed parking structure, second floor addition, paved plaza with staff break area, trash enclosure, mechanical/generator yard enclosure, and relocated fencing for accessible path of travel. The design addresses specific fenestration constraints imposed by future mechanical equipment loads on the existing exterior walls, which will limit new exterior openings to a maximum of 10% per the 2025 CBC Existing Buildings Code Section 503.4 Exception 1, unless additional structural seismic study is performed and funded by the design-build entity.
The exhibit documents four fenestration options for the building envelope ranging from minimal openings without reinforcement to full-spandrel glazing systems, with detailed keynotes and performance requirements specified in accompanying mechanical narratives. The facility includes multiple functional areas across 118'-5" of building depth, encompassing data center, engineering work areas, customer service lobby, staff specialist offices, copy areas, and coffee bar spaces. Building envelope performance requirements must coordinate with mechanical design criteria and exterior insulation and cladding specifications. The document reflects a preliminary design phase with field verification required for existing conditions and coordination between the design-build team, structural engineers, and mechanical designers to finalize fenestration selections and any necessary reinforcement measures.
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Text version
NO PARKING
03 102 101 100
HB
HB
FHFH
36 1/2" 36 3/4"
5' -0
/8
9'
-2
/8
4'-4 1/4"
18'-1 3/4"
LP
LP
LP
LP
LP
LP
LP
LP
LP
LP
LP
LP
LP
LP
LP
LP
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5'-
0"
76'-0" VIF 76'-0" VIF
PROPERTY LINE
PR
OP
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TY
LI
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PR
OP
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TY
LI
NE
PROPERTY LINE
(E) FENCE
(E ) F
EN
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LEVEL 01
0' - 0"
LEVEL 02
14' - 0"
ROOF
30' - 5"
1234567891011
MECHANICAL UNIT ROOFTOP ZONE
As indicated
4995-001-00
2026/02/06
NEW SITE AND
EXTERIORS
EOC-TUSTIN
1/32" = 1'-0"1 ILLUSTRATIVE SITE PLAN 2 ISOMETRIC VIEW
1" = 20'-0"3 CONCEPTUAL NORTH WEST ELEVATION
KEYNOTES
# DESCRIPTION
3 EXISTING FENCE
7 PROPOSED MECH/GEN YARD ENCLOSURE BY OTHERS
11 NEW TRASH ENCLOSURE
17 DEMAND CAPACITY RATIO: FUTURE NEW MECHANICAL UNITS ON ROOF WILL INCREASE STRUCTURAL LOAD ON EXISTING
EXTERIOR WALLS; LOAD INCREASE WILL LIMIT FUTURE NEW EXTERIOR OPENINGS TO 10% (2025 CBC EXISTING BUILDINGS CODE: 503.4 EXCEPTION 1. DBE TO INCLUDE SUCH LIMITATION IN ITS BASE DESIGN (DBE TO PROVIDE FEE FOR ADDITIONAL STRUCTURAL SEISMIC STUDY REQUIRED TO INCREASE EXTERIOR OPENINGS PAST 10% LIMITATION). SEE NARRATIVE FOR
MORE INFO.
18 VERIFY IN FIELD EXISTING CONDITION AND COORDINATE EXTERIOR INSULATION AND CLADDING WITH BUILDING ENVELOPE REQUIREMENT AND MECHANICAL DESIGN CRITERIA. SEE BUILDING ENVELOPE PERFORMANCE TABLE IN
MECHANICAL NARRATIVE FOR REQUIREMENTS.
20 PROPOSED LID PLANTER, SEE LANDSCAPE DRAWINGS FOR ADDITIONAL DETAILS
21 LINE OF THE 33' UNOBSTRUCTED ZONE, SEE LANDSCAPE DRAWINGS FOR ADDITIONAL DETAILS
22 PROPOSED PARKING STRUCTURE
23 PROPOSED 2ND FLOOR ADDITION
26 PROPOSED PAVED PLAZA WITH STAFF BREAK AREA, SEE LANDSCAPE DRAWINGS FOR ADDITIONAL DETAILS
27 PROPOSED RELOCATED FENCE FOR ACCESSIBLE PATH OF TRAVEL
0 16' 64'32'
0 10' 40'20'
0 25' 100'50'
2026/02/13
MECHANICAL UNIT ROOFTOP ZONE
MECHANICAL UNIT ROOFTOP ZONE
MECHANICAL UNIT ROOFTOP ZONE
4'-0"
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Fire rise r#
22'-2 1/2"
6'-1/4"
3'-11 1/2"
13'-6"
3'-0" AFF
8'-0" AFF
8'-0" AFF
3'-0" AFF LEVEL 02
14' - 0"13'-6"
1,415.41 sf
6 5 4
NO FENESTRATION ZONE
OPTION 1: 10% OPENNING PER PNL -
NO REINFORCEMENT REQ'D
OPTION 2: RIBBON WINDOWS
WITHOUT SPANDREL OPENING
OPTION 3: RIBBON WINDOWS WITH
SPANDREL OPENING
CODE: 503.
STRUCTUR
MORE INFO
VERIFY IN
A
PARTIAL LEVEL 2 OVERLAY
PARTIAL LEVEL 1 OVERLAY
2'-0"
4'-0"
MECHANICAL UNIT ROOFTOP ZONE
WITHOUT SPANDREL OPENING
OPTION 3: RIBBON WINDOWS WITH
SPANDREL OPENING
OPTION 4: ZERO SPANDREL GLAZING
LEGEND
EXISTING BUILDING
AREA OF SCOPE
EXTEND
OF TILT-UP
PANEL
BEYOND
2026/06/10
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