Military Facility: 346 Issues Found in Pre-Permit Review

The project

A military facility renovation and addition project at Beale Air Force Base requiring comprehensive coordination across architectural, structural, mechanical, electrical, plumbing, fire protection, and civil disciplines. The project included sleeping units (R-2 occupancy), assembly spaces (A-3 occupancy), dining facilities, and support areas with strict compliance requirements for federal construction standards, life safety, accessibility, fire protection, and building codes.

Project type

Military facility · Federal construction · R-2 / A-3 occupancy

Codes referenced: 2021 International Building Code · NFPA 70 (NEC) · ICC A117.1 · NFPA 72

Critical findings (20)

1. Emergency Lighting Inverter INV-A Location Conflict: ELEC 107 vs ROOM 103

   Electrical

   Critical

   The panel schedule on E-606 shows Inverter INV-A with Location: ELEC 107, while the one-line power diagram on E-701 shows the Emergency Source Lighting Inverter INV-A in ROOM 103. These are two different rooms, creating a direct contradiction about where this life-safety emergency lighting equipment should be installed.

2. Conflicting Voltage Specification: E-121 Shows 120V While E-402 Shows 277V for Panel 1LOL1 Luminaires

   Electrical

   Critical

   E-121 General Note 1 specifies that all luminaires and lighting devices are served from Panel 1LOL1 at 120V, while E-402 General Note 1 specifies the same panel serves luminaires at 277V. Since E-121 references the enlarged plans on E-402 for lighting details, both sheets apply to the same sleeping room and bathroom areas, creating a direct contradiction in the voltage specification for the same lighting circuits.

3. Door Schedule References L6/A-611 as HEAD Detail for 2'-6" Doors, but L6 is an Exterior Window Sill Detail

   Architectural

   Critical

   The door and hardware schedule on sheet A-601 lists L6/A-611 in the HEAD column for multiple 2'-6" wide interior doors. However, detail L6 on sheet A-611 is titled 'EXT - WINDOW SILL DETAIL' which is an exterior sliding window sill condition, not an interior door frame head detail. This is a direct cross-reference mismatch.

4. Water-Resistant Gypsum Board Ceiling Specified for Shower Areas Violates Section 2509

   Architectural · Code: 2021 International Building Code

   Critical

   The Architectural Finishes Schedule specifies GYP-2 (Water-Resistant Gypsum Board Ceiling) to be installed in shower areas. The Room Finish Schedule shows GYP-2 ceiling for all TOILET/SHOWER rooms. IBC Section 2509.2 requires ceiling panels in shower areas to be materials listed in Table 2509.2, which includes only glass mat gypsum backing panel, fiber-cement backer board, or fiber-mat reinforced cementitious backer unit. Water-resistant gypsum board is not one of these approved materials.

5. Water-Resistant Gypsum Wallboard Specified for Shower Tile Backing Violates IBC Section 2509.2

   Architectural · Code: 2021 International Building Code

   Critical

   General Note 4 on the drawing specifies 'PROVIDE WATER RESISTANT GYPSUM WALLBOARD AT ALL WET AREAS AND/OR AREAS TO RECEIVE WALL TILE.' The enlarged plans show toilet/shower rooms with wall tile indicated. IBC Section 2509.2 explicitly requires that materials used as a base for wall tile in tub and shower areas shall be of materials listed in Table 2509.2. Water-resistant gypsum wallboard is NOT listed in Table 2509.2.

6. Accessibility Exemption Claim Not Supported by IBC Section 1103.2 Exceptions

   Code Compliance · Code: 2021 International Building Code

   Critical

   The drawing explicitly claims the project is exempt from accessibility requirements, stating 'This project is exempt from accessibility requirements. This facility will be accessed and used by only able-bodied personnel.' However, IBC Section 1103.1 requires that all buildings 'shall be accessible to individuals with disabilities.' The exceptions listed in Section 1103.2 are limited to specific building types. The stated basis for exemption, that users will be 'able-bodied personnel', is not among the recognized IBC exceptions.

7. Foundation Plan Explicitly Designated as Preliminary/For Pricing Only Conflicts with Construction Document Requirements

   Structural · Code: 2021 International Building Code

   Critical

   General Note 10 on sheet S-101 explicitly states that foundations are preliminary and footing sizes are provided for general pricing only, with final sizes, quantities, and locations subject to review of metal building system submittal. The plan is also titled 'PRELIMINARY FOUNDATION PLAN.' This conflicts with IBC Section 1603.1 which requires construction documents to show the size, section and relative locations of structural members.

8. ACCU-5 Panel Assignment Conflict - Floor Plan Shows 1HOL1 (120/208V) but Panel Schedule Shows 1HOM1 (480/277V)

   Electrical

   Critical

   The power floor plan E-101 shows ACC-U-5 assigned to Panel 1HOL1 circuits 4,6. However, the panel schedule E-604 shows ACCU-5 on Panel 1HOM1 circuit 19 as a 3-pole, 40A load. Panel 1HOL1 is a 120/208V Wye system while Panel 1HOM1 is a 480/277V Wye system. This represents both a panel assignment conflict and a voltage system conflict.

9. Conflicting Pipe Length: Storm Drain A 18" RCP Shows 38 LF on Plan vs 188 LF on Profile

   Civil

   Critical

   The Grading and Drainage Plan (CG101) specifies 38 LF of 18" RCP - CLASS III at 0.50% slope for Storm Drain Line A, while the Storm Drain 'A' Profile (CG201) shows 188 LF of 18" RCP - CLASS III at 0.50% slope for the segment from MH-02 to the existing catch basin connection. This is a 150 LF difference (nearly 5x the plan quantity) for the same pipe run.

10. Conflicting Wire Size and Phase Requirements for ACCU-6

    Electrical

    Critical

    Drawing E-602's Equipment Schedule lists ACCU-6 as a 480V, 3-Phase unit with a 40A MOCP and references Keyed Note 4. Keyed Note 4 explicitly specifies '2#12, 1#12G' (suitable for 20A single-phase), which is severely undersized for a 40A load and has incorrect phase count. This conflicts with the E-701 Branch Circuit & Feeder Schedule, which specifies '3 - # 8' conductors for a 40A circuit.

11. Towel Bar Obstructs Required Grab Bar Zone in Typical Room

    Architectural

    Critical

    Sheet A-414 references A-006 for accessibility standards. A-006 depicts required rear and side grab bars for Water Closets. However, the Typical Toilet/Shower Elevation (J6) on A-414 shows a Towel Bar (TB2) installed directly above the toilet in the zone typically reserved for the rear grab bar (33"-36" AFF). No grab bars are shown in the elevation despite the reference to accessibility diagrams.

12. Conflict in Window Vertical Dimensions and Sill Condition

    Architectural

    Critical

    Wall Sections B17 and B14 on sheet A-311 depict a window opening condition sitting on a masonry base with the note "2'-8" T.O. CMU" and a vertical opening dimension of "2'-4"". These sections explicitly reference "PER WINDOW TYPE RE: A-601". However, Window Types 1, 2, and 3 detailed on sheet A-601 are all shown as "7'-0"" tall assemblies referenced directly from "FIRST FLOOR 100'-0"", which implies a floor-level sill rather than a partial-height window on a 2'-8" raised CMU sill.

13. Contradictory Structural Grid Orientation on North Elevations

    Architectural

    Critical

    There is a direct contradiction in the structural grid orientation between two North Elevation details on sheet A-201. Detail M10 (Overall North Elevation) displays the vertical grid lines ordered Left-to-Right from AA to JJ. Conversely, Detail J10 (New Addition - North Elevation) displays the grid lines in reverse order, Left-to-Right from JJ to AA.

14. Inconsistent Professional Engineer Stamp Jurisdictions

    Civil

    Critical

    The Utility Plan (CU101) bears a State of California professional engineer seal, while the Underground Drain and Vent Plan (P-100) bears a State of Wisconsin professional engineer seal. This creates a direct conflict regarding the project's legal jurisdiction and location.

15. Surface Raceway Penetration of Fire-Rated Corridor Walls

    Electrical · Code: 2021 International Building Code

    Critical

    The drawing specifies 'SIPR SURFACE MOUNTED RACEWAY' running in the corridor and serving outlets within adjacent rooms. In Group R occupancies, corridor walls are required to be fire-resistance rated (Section 1020.1). Surface mounted raceway systems cannot penetrate fire-resistance-rated walls continuously while maintaining the required rating.

16. Inaccessible Conduit Termination in Ceiling Space

    Electrical · Code: 2021 International Building Code

    Critical

    Detail G14 explicitly states in Note 1 that "THIS METHOD OF INSTALLATION IS REQUIRED IN AREAS WITH INACCESSIBLE CEILING." However, the detail depicts the conduit extending vertically and terminating "WITHIN 12" OF CABLE TRAY" in the space above the ceiling line. If the ceiling is inaccessible (e.g., hard drywall/gypsum), the termination point of the conduit in the interstitial space is physically inaccessible.

17. Prohibited Voltage for Sleeping Unit Luminaires

    Electrical · Code: 2021 International Building Code

    Critical

    The drawing specifies that all luminaires are 277V (General Note 1), including those in the 'SLEEPING ROOM' spaces. However, IBC Section 2701.1 adopts NFPA 70 (NEC), and NEC 210.6(A) explicitly prohibits luminaires exceeding 120V nominal in dwelling units, guest rooms, and sleeping units.

18. Missing AFCI Protection for Sleeping Room Receptacles

    Electrical · Code: 2021 International Building Code

    Critical

    Panel 1POL2 supplies 120V circuits to "SLEEPING ROOM" locations (Circuits 1-20). The panel schedule specifies standard 20A breakers and the legend does not include an indicator for Arc-Fault Circuit Interrupter (AFCI) protection. NFPA 70 (referenced by IBC 2701.1) mandates AFCI protection for branch circuits supplying outlets in sleeping units/guest rooms.

19. Emergency Illumination for Generator Room on Non-Emergency Panel

    Electrical · Code: 2021 International Building Code

    Critical

    IBC 1008.3.3 requires generator rooms to be automatically illuminated by the emergency electrical system in the event of a power failure. Panel 1POL1 supplies "GENERATOR LIGHTS AND RECEPTS" (Circuit 33) but also supplies non-essential, optional loads such as "DRYER" (Circuits 5, 9) and "DISHWASHER" (Circuit 8). The presence of these optional appliances indicates that Panel 1POL1 is a Normal or Standby panel, not a segregated Emergency (Life Safety) panel.

20. Incorrect Demand Load Calculation for Continuous Heating Loads

    Electrical · Code: 2021 International Building Code

    Critical

    Panel 1HOL2 serves 'Heat' loads (VAV-1 through VAV-21), which are defined as continuous loads by the electrical code. Continuous loads require a 125% demand factor for sizing feeders and overcurrent protection. The panel schedule applies a demand factor of only 102.98%, resulting in a 'Total Design Current' of 60 A. The correct design current should be approximately 73 A (58 A × 1.25).

Sample high priority findings (5 total)

1. Radius Dropouts at Fire Rated Penetration Void Listing

   Fire Protection · Code: 2021 International Building Code

   High

   Detail E14 mandates the installation of "MANUFACTURED RADIUS DROPOUTS" on both sides of the cable tray wall penetration. The detail shows these accessories installed directly at the face of the "RATED WALL", within or immediately adjacent to the through-penetration firestop system. Standard UL/listed firestop systems for cable trays are tested with the tray itself and specific fill materials. They do not list or approve the inclusion of auxiliary plastic or metal radius dropout accessories within the seal interface.

2. Missing Automatic Emergency Lighting Override in Electrical/Mechanical Rooms

   Electrical · Code: 2021 International Building Code

   High

   IBC 1008.3.3 requires that electrical equipment rooms be 'automatically' illuminated in the event of power supply failure. The Lighting Control Schedule specifies 'MANUAL ON CONTROL' for Electrical & Mechanical Rooms (MEP) and explicitly states 'NO UL924 RELAY REQUIRED' (UL924 | N). Without a UL924 bypass relay, if the manual switch is in the 'OFF' position during a power outage, the lighting will not turn on automatically.

3. Missing Seismic Roof Curb Specification for Rooftop AHU

   Mechanical · Code: 2021 International Building Code

   High

   The drawing sheet includes a Professional Engineer stamp for the "STATE OF CALIFORNIA", a region with significant seismic design requirements. The AHU Schedule lists AHU-1 as a rooftop unit with a "WEIGHT WITH CURB" of 2,094 lbs. The schedule's Legend explicitly offers "9 SEISMIC ROOF CURB" as an option. However, the Accessories selected for AHU-1 do not include Accessory 9 (Seismic Roof Curb).

4. Undersized Breaker for Continuous Heating Load (Panel 1HOM1)

   Electrical · Code: 2021 International Building Code

   High

   Panel 1HOM1 lists circuit 13/15/17 "AHU-1 HEAT" with a 50 A trip breaker. The Load Classification summary indicates the total connected Heat load is 39,000 VA. At 480V 3-phase, 39,000 VA draws approximately 46.9 Amps. Per IBC 2701.1, which adopts NFPA 70 (NEC), fixed electric space heating is a continuous load and overcurrent protection must be sized at 125% of the load (46.9 A x 1.25 = 58.6 A). The provided 50 A breaker is undersized.

5. Manual Transfer Switch Specified for Life Safety System

   Electrical · Code: 2021 International Building Code

   High

   The drawing specifies a 'Manual Transfer Switch' (Note 9.127) equipped with 'Generator Camlocks' (implying a portable generator connection). However, Note 9.124 indicates this system serves 'Fire Protection / Life Safety Equipment'. Code requirements for Emergency and Standby Power Systems (IBC 2702.1.4) mandate that power be provided 'automatically' within 10 seconds for emergency loads and 60 seconds for standby loads.

Issue categories

Fire Protection

Fire-resistance ratings, smoke barriers, fire alarm systems, emergency lighting, exit signage, and fire code compliance

Structural

Seismic design, foundation plans, structural grid, concrete reinforcement, and structural code compliance

Architectural

Door schedules, accessibility compliance, room layouts, wall assemblies, means of egress, and building code compliance

Mechanical

HVAC systems, ventilation, duct penetrations, seismic bracing, and mechanical code compliance

Plumbing

Fixture schedules, water supply, drainage, accessibility requirements, and plumbing code compliance

Electrical

Panel schedules, voltage conflicts, emergency power systems, AFCI protection, load calculations, and electrical code compliance

Code Compliance

IBC compliance, accessibility standards, code violations, and building code requirements

Document Coordination

Drawing conflicts, schedule mismatches, cross-reference errors, and document coordination issues

Value delivered

• 346 issues surfaced before permit submission
• 20 critical permit-blocking issues identified
• Critical electrical conflicts caught (voltage mismatches, panel assignments, undersized breakers)
• Accessibility violations identified (invalid exemption claim, missing grab bars, non-compliant fixtures)
• Fire protection deficiencies caught (unprotected penetrations, missing emergency lighting, insufficient ratings)
• Code compliance issues resolved (IBC violations, NEC violations, material non-compliance)