Plan Review: 250 Issues Found
An anonymized plan review uncovered coordination and code issues across disciplines—before permit.
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Key findings
Drawing Index Audit: 65 missing, 0 mismatched out of 117 sheets
General
117 index entries | 52 perfect matches | 0 mismatched | 65 missing Missing (65) — listed in drawing index but not found in the document: MD: - MD.01 OVERALL FIRST FLOOR - SANITARY AND STORM PIPING DEMOLITION - MD.02 OVERALL FIRST FLOOR - DOMESTIC WATER PIPING DEMOLITION - MD.03 OVERALL FIRST FLOOR - HVAC DEMOLITION Mechanical: - M1.01 FIRST FLOOR PLAN ZONE A & B - SANIT...
Non-compliant Firestop Method and Unfastened Sleeve in Rated Wall Penetration
Mechanical
The 'HORIZONTAL PIPE SLEEVE DETAIL - RATED WALLS' specifies the use of generic 'FIRE-FOAM SEALANT (ALL EDGES)' between the steel sleeve and the continuous 'PIPE INSULATION MATERIAL AS SPECIFIED'. This directly violates IBC Section 714.2, which requires a 'listed penetration firestop system' rather than generic foam. Furthermore, the detail instructs to 'TERMINATE SLEEVE FLUSH WITH FINISHED WALL...
Missing Secondary (Emergency Overflow) Drainage at Roof Scuppers
Plumbing
The roof plan designates a section of the perimeter to be drained by four primary through-wall scuppers with downpipes. Section Detail F5 shows that the roof edge at this perimeter features a parapet extending above the roof deck, creating a condition where water will be entrapped. However, the drawings do not provide or detail any secondary (emergency overflow) scuppers or drains for this roof...
Standard Tempered Glass Specified in Fire-Rated Doors
Architectural • NFPA 252, UL 10B or UL 10C.
The DOOR SCHEDULE identifies multiple Type D-2 doors (e.g., A108-1 and C102-1) as having a "90 MIN" fire rating. However, the elevation detail for door Type D-2 explicitly calls out the vision panel as standard "1/4" TEMPERED GLASS" without specifying it as fire-protection-rated glazing. IBC Section 716.1.2 requires glazing in fire door assemblies to comply with specific fire protection require...
Extended bleachers obstruct egress doors A108-3 and A108-4
Architectural
The interior elevation of the West wall (A108 HS GYMNASIUM - W) shows the side profile of the retractable bleachers in their extended, fully deployed position. The stepped profiles of these extended bleachers on both the North and South ends of the wall directly overlap and obstruct the clear width of the egress doors labeled A108-3 and A108-4.
Exterior Equipment Pad Layout Reversal (MAU-1 and DC-1)
Architectural
Architectural plan A1.12 and Plumbing plan M2.03 indicate the Dust Collection system is located on the northern pad and the Makeup Air Unit is on the southern pad. However, HVAC plan M3.03 reverses this arrangement, showing the Makeup Air Unit (MAU-1) on the northern pad and the Dust Collector (DC-1) on the southern pad.
Inconsistent Room Names and Locations for Concessions and Training Rooms
Architectural
The Electrical Power plans show "CONCESSION 106" and "TRAINER A001" located adjacent to "CORRIDOR 113" (on the East side of the Gym). In contrast, the Architectural Reflected Ceiling plans show "CONCESSIONS A106" and "TRAINING A112" located adjacent to the "ZONE A" boundary (on the far West side of the Gym).
Voltage Conflict on Circuit LPA-7 (120V and 277V Fixtures)
General
The Light Fixture Schedule specifies Fixture Type C6 as explicitly 277V and Fixture Type D as explicitly 120V. However, the Zone A Lighting Plan indicates that both of these single-voltage fixtures are connected to the same branch circuit, LPA-7.
Fire Zone Areas Exceed Allowable Area per Story
Architectural
The Code Analysis on LS1.01 specifies a 'TOTAL ALLOWABLE AREA PER STORY' of 14,500 SF and directs the reader to 'SEE LS1.02 FOR FIRE ZONES'. However, the Fire Zones delineated on LS1.02 significantly exceed this limit, with Fire Zone B at 37,635 sq ft, Fire Zone A at 18,365 sq ft, and Fire Zone D at 17,003 sq ft.
Lavatories Located Outside of Toilet Rooms
Plumbing
The plumbing plan shows water closets located in rooms without lavatories in the same room, which contradicts the building code. Specifically, the room labeled 'TLT A110T' contains water closets (WC-1, WC-2), but the associated lavatories (L-1) are located outside the room in 'CORRIDOR C102'. Additionally, 'GIRLS LOCKER A109' contains a water closet (WC-1) but shows no lavatories within the roo...
Issue categories
More example findings
Drawing Index Audit: 65 missing, 0 mismatched out of 117 sheetsGeneralCritical
Summary: 117 index entries | 52 perfect matches | 0 mismatched | 65 missing Missing (65) — listed in drawing index but not found in the document: MD: - MD.01 OVERALL FIRST FLOOR - SANITARY AND STORM PIPING DEMOLITION - MD.02 OVERALL FIRST FLOOR - DOMESTIC WATER PIPING DEMOLITION - MD.03 OVERALL FIRST FLOOR - HVAC DEMOLITION Mechanical: - M1.01 FIRST FLOOR PLAN ZONE A & B - SANIT...
Why it matters: Addressing this before construction prevents rework and supports code compliance.
Suggested next step: Review drawings and specifications to resolve before construction.
RFI draft: Please clarify: Drawing Index Audit: 65 missing, 0 mismatched out of 117 sheets
Non-compliant Firestop Method and Unfastened Sleeve in Rated Wall PenetrationMechanicalCritical
Summary: The 'HORIZONTAL PIPE SLEEVE DETAIL - RATED WALLS' specifies the use of generic 'FIRE-FOAM SEALANT (ALL EDGES)' between the steel sleeve and the continuous 'PIPE INSULATION MATERIAL AS SPECIFIED'. This directly violates IBC Section 714.2, which requires a 'listed penetration firestop system' rather than generic foam. Furthermore, the detail instructs to 'TERMINATE SLEEVE FLUSH WITH FINISHED WALL...
Why it matters: Firestopping is a critical life-safety requirement. Using generic fire-foam sealant instead of a UL-listed intumescent firestop system specifically tested for insulated pipes will allow the insulation to melt during a fire, leaving an open void that compromises the fire-resistance rating of the w...
Suggested next step: Please revise the 'HORIZONTAL PIPE SLEEVE DETAIL - RATED WALLS' to explicitly require a UL-listed penetration firestop system (e.g., intumescent caulk and mineral wool, or a firestop collar) tested for use with continuous pipe insulation. Additionally, add a note and graphical...
RFI draft: Please revise the 'HORIZONTAL PIPE SLEEVE DETAIL - RATED WALLS' to explicitly require a UL-listed penetration firestop system (e.g., intumescent caulk and mineral wool, or a firestop collar) tested for use with continuous pipe insulation. Addition...
Missing Secondary (Emergency Overflow) Drainage at Roof ScuppersPlumbingCritical
Summary: The roof plan designates a section of the perimeter to be drained by four primary through-wall scuppers with downpipes. Section Detail F5 shows that the roof edge at this perimeter features a parapet extending above the roof deck, creating a condition where water will be entrapped. However, the drawings do not provide or detail any secondary (emergency overflow) scuppers or drains for this roof...
Why it matters: IBC Section 1502.2 requires secondary (emergency overflow) roof drains or scuppers in locations where the roof perimeter construction entraps water. Without secondary drainage, a blockage in the primary scuppers (due to leaves, debris, or ice) will cause water to pond excessively on the roof. Thi...
Suggested next step: Please clarify the design and location for secondary (emergency overflow) scuppers or drains for the roof area served by the primary through-wall scuppers, ensuring compliance with IBC Section 1502.2.
RFI draft: Please clarify the design and location for secondary (emergency overflow) scuppers or drains for the roof area served by the primary through-wall scuppers, ensuring compliance with IBC Section 1502.2.
Standard Tempered Glass Specified in Fire-Rated DoorsArchitectural • NFPA 252, UL 10B or UL 10C.Critical
Summary: The DOOR SCHEDULE identifies multiple Type D-2 doors (e.g., A108-1 and C102-1) as having a "90 MIN" fire rating. However, the elevation detail for door Type D-2 explicitly calls out the vision panel as standard "1/4" TEMPERED GLASS" without specifying it as fire-protection-rated glazing. IBC Section 716.1.2 requires glazing in fire door assemblies to comply with specific fire protection require...
Why it matters: Installing standard 1/4" tempered glass in a 90-minute fire-rated door assembly will compromise the integrity of the fire barrier, as standard tempered glass cannot withstand prolonged fire exposure and will fail. This is a critical life safety violation that will result in failed fire safety ins...
Suggested next step: Please clarify the glazing requirements for fire-rated D-2 doors. Should the door elevation be updated to specify fire-protection-rated glazing (such as fire-rated ceramic or laminated glass) that complies with IBC 716.1.2 and bears the appropriate identification for fire door...
RFI draft: Please clarify the glazing requirements for fire-rated D-2 doors. Should the door elevation be updated to specify fire-protection-rated glazing (such as fire-rated ceramic or laminated glass) that complies with IBC 716.1.2 and bears the appropriat...
Extended bleachers obstruct egress doors A108-3 and A108-4ArchitecturalCritical
Summary: The interior elevation of the West wall (A108 HS GYMNASIUM - W) shows the side profile of the retractable bleachers in their extended, fully deployed position. The stepped profiles of these extended bleachers on both the North and South ends of the wall directly overlap and obstruct the clear width of the egress doors labeled A108-3 and A108-4.
Why it matters: Obstructing an exit door with furnishings or equipment (like extended bleachers) violates Section 806.1 Item 3, which prohibits placing objects that obstruct exits or egress access. During an assembly event when the bleachers are deployed, the occupant load is at its highest and these doors will ...
Suggested next step: Please clarify the coordination between the extended bleachers and doors A108-3 and A108-4. Relocate the doors outside the extended footprint of the bleachers, or adjust the bleacher design to maintain full, unobstructed access to the required means of egress doors at all times.
RFI draft: Please clarify the coordination between the extended bleachers and doors A108-3 and A108-4. Relocate the doors outside the extended footprint of the bleachers, or adjust the bleacher design to maintain full, unobstructed access to the required mea...
Exterior Equipment Pad Layout Reversal (MAU-1 and DC-1)ArchitecturalCritical
Summary: Architectural plan A1.12 and Plumbing plan M2.03 indicate the Dust Collection system is located on the northern pad and the Makeup Air Unit is on the southern pad. However, HVAC plan M3.03 reverses this arrangement, showing the Makeup Air Unit (MAU-1) on the northern pad and the Dust Collector (DC-1) on the southern pad.
Why it matters: A reversal of major exterior equipment locations will cause severe coordination issues for underground utilities, concrete pad installation, structural supports, and exterior wall penetrations for the large ductwork routing to the units.
Suggested next step: Please confirm the correct pad locations for MAU-1 and DC-1. Update the Architectural, HVAC, and Plumbing plans to reflect a unified equipment layout.
RFI draft: Please confirm the correct pad locations for MAU-1 and DC-1. Update the Architectural, HVAC, and Plumbing plans to reflect a unified equipment layout.
Inconsistent Room Names and Locations for Concessions and Training RoomsArchitecturalCritical
Summary: The Electrical Power plans show "CONCESSION 106" and "TRAINER A001" located adjacent to "CORRIDOR 113" (on the East side of the Gym). In contrast, the Architectural Reflected Ceiling plans show "CONCESSIONS A106" and "TRAINING A112" located adjacent to the "ZONE A" boundary (on the far West side of the Gym).
Why it matters: This significant discrepancy indicates that the electrical and systems drawings may be utilizing an outdated or mirrored architectural background. Working from conflicting floor plans will lead to incorrect routing, missed rough-ins, and devices being installed in the wrong locations during const...
Suggested next step: Please confirm the correct locations and room numbers for the Concessions and Training rooms. Are they located adjacent to the Zone A boundary (per Architectural) or adjacent to Corridor 113 (per Electrical)? Please update the Electrical and Systems backgrounds to match the cu...
RFI draft: Please confirm the correct locations and room numbers for the Concessions and Training rooms. Are they located adjacent to the Zone A boundary (per Architectural) or adjacent to Corridor 113 (per Electrical)? Please update the Electrical and Syste...
Voltage Conflict on Circuit LPA-7 (120V and 277V Fixtures)GeneralCritical
Summary: The Light Fixture Schedule specifies Fixture Type C6 as explicitly 277V and Fixture Type D as explicitly 120V. However, the Zone A Lighting Plan indicates that both of these single-voltage fixtures are connected to the same branch circuit, LPA-7.
Why it matters: A single branch circuit cannot simultaneously supply both 120V and 277V. Connecting these disparate fixtures to the same circuit will result in either catastrophic failure of the 120V fixtures due to overvoltage or the 277V fixtures failing to operate due to undervoltage, depending on the panel's...
Suggested next step: Please verify the intended voltage for circuit LPA-7. Re-circuit either the Type C6 or Type D fixtures so they are powered by properly rated circuits, or update the fixture schedule to specify MVOLT (120-277V) drivers for both fixtures.
RFI draft: Please verify the intended voltage for circuit LPA-7. Re-circuit either the Type C6 or Type D fixtures so they are powered by properly rated circuits, or update the fixture schedule to specify MVOLT (120-277V) drivers for both fixtures.
Fire Zone Areas Exceed Allowable Area per StoryArchitecturalCritical
Summary: The Code Analysis on LS1.01 specifies a 'TOTAL ALLOWABLE AREA PER STORY' of 14,500 SF and directs the reader to 'SEE LS1.02 FOR FIRE ZONES'. However, the Fire Zones delineated on LS1.02 significantly exceed this limit, with Fire Zone B at 37,635 sq ft, Fire Zone A at 18,365 sq ft, and Fire Zone D at 17,003 sq ft.
Why it matters: For a building to comply with allowable area limits using fire walls to separate it into distinct 'buildings' (fire areas), each separated zone must not exceed the maximum allowable area per story. Since multiple fire zones exceed the stated 14,500 SF limit, the design either violates building co...
Suggested next step: The code summary on LS1.01 states a total allowable area per story of 14,500 SF, but multiple fire zones on LS1.02 (e.g., Zone B at 37,635 sq ft) exceed this limit. Please review the allowable area calculations. Are frontage or sprinkler increases missing from the summary, or ...
RFI draft: The code summary on LS1.01 states a total allowable area per story of 14,500 SF, but multiple fire zones on LS1.02 (e.g., Zone B at 37,635 sq ft) exceed this limit. Please review the allowable area calculations. Are frontage or sprinkler increases...
Lavatories Located Outside of Toilet RoomsPlumbingHigh
Summary: The plumbing plan shows water closets located in rooms without lavatories in the same room, which contradicts the building code. Specifically, the room labeled 'TLT A110T' contains water closets (WC-1, WC-2), but the associated lavatories (L-1) are located outside the room in 'CORRIDOR C102'. Additionally, 'GIRLS LOCKER A109' contains a water closet (WC-1) but shows no lavatories within the roo...
Why it matters: Failing to place handwashing facilities in the same room as the water closets poses a sanitation issue and will result in failed building and health department inspections. Correcting this during construction would require costly architectural and plumbing modifications, including relocating plum...
Suggested next step: Relocate the required lavatories (L-1) from Corridor C102 to be within the same enclosed room as the water closets (TLT A110T), and add a lavatory within the Girls Locker A109 toilet area to comply with IBC Section 2903.1.2. Alternatively, provide architectural clarification i...
RFI draft: Relocate the required lavatories (L-1) from Corridor C102 to be within the same enclosed room as the water closets (TLT A110T), and add a lavatory within the Girls Locker A109 toilet area to comply with IBC Section 2903.1.2. Alternatively, provide...
Required Lavatory Located Outside Toilet Room TLT A110TPlumbingHigh
Summary: The plumbing plan shows a toilet room labeled 'TLT A110T' that contains a water closet ('WC-2'), a urinal ('UR-1'), and a janitor sink ('JS-1'). However, there is no lavatory (handwashing sink) located inside this room. Instead, a lavatory ('L-1') is shown located outside the room in the adjacent 'CORRIDOR C100'. This directly violates IBC Section 2903.1.2, which mandates that in employee and p...
Why it matters: Providing a handwashing sink in an adjacent corridor instead of inside the toilet room does not meet sanitary and building code requirements, as users would have to exit the room (potentially touching door hardware) before washing their hands. If built as designed, this will fail health and build...
Suggested next step: Please confirm if a lavatory can be added inside TLT A110T to comply with IBC Section 2903.1.2, or if the architectural room footprint should be revised to enclose the corridor lavatory (L-1) within the toilet room. Coordinate necessary piping and room layout adjustments with ...
RFI draft: Please confirm if a lavatory can be added inside TLT A110T to comply with IBC Section 2903.1.2, or if the architectural room footprint should be revised to enclose the corridor lavatory (L-1) within the toilet room. Coordinate necessary piping and...
Contradictory Fire Alarm Demolition Scope Lacks ClarityElectrical • International Fire Code; and relevant laws, ordinances, ruleHigh
Summary: The demolition notes provide conflicting instructions regarding the fire alarm system. General Note 5 directs the contractor to "REMOVE ALL FIRE ALARM DEVICES.", while General Note 13 directly contradicts this by stating "EXISTING FIRE ALARM SYSTEM SHALL REMAIN. REMOVE AND REINSTALL EXISTING FIRE ALARM DEVICES AS SHOWN ON DRAWINGS." This contradiction fails to provide sufficient clarity regardi...
Why it matters: Construction documents must be unambiguous, especially for life safety systems. The conflicting directions create a high risk that the contractor may inadvertently remove critical fire detection and notification devices that are intended to remain, or fail to reinstall necessary devices. This lac...
Suggested next step: Clarify the exact scope of the fire alarm demolition. Please revise General Notes 5 and 13 to clearly and consistently indicate which fire alarm devices are to be completely removed, which are to remain, and which are to be temporarily removed and reinstalled.
RFI draft: Clarify the exact scope of the fire alarm demolition. Please revise General Notes 5 and 13 to clearly and consistently indicate which fire alarm devices are to be completely removed, which are to remain, and which are to be temporarily removed and...
Missing Emergency Illumination in Exit Stairway 068ElectricalHigh
Summary: The electrical lighting plan for STAIR 068 specifies only standard 'F' type fixtures. According to General Note 2 under 'LIGHTING WIRING METHODS', emergency fixtures are designated by half-tone shading and are equipped with a battery. In the drawings, this is consistently denoted by an 'E' suffix (e.g., the 'FE' fixture shown in the adjacent VESTIBULE V102). The absence of an 'FE' fixture or ot...
Why it matters: During a power failure or fire event, occupants using Stair 068 will be left without sufficient illumination, severely compromising the means of egress and life safety. This omission will lead to unsafe evacuation conditions and a failed safety inspection.
Suggested next step: Please confirm if Stair 068 requires emergency illumination. If so, please update the lighting plan to replace at least one standard 'F' fixture with an 'FE' emergency fixture, or provide an inverter-backed circuit to comply with IBC Section 1008.3.2.
RFI draft: Please confirm if Stair 068 requires emergency illumination. If so, please update the lighting plan to replace at least one standard 'F' fixture with an 'FE' emergency fixture, or provide an inverter-backed circuit to comply with IBC Section 1008....
Missing Emergency Illumination in New Electrical Equipment RoomElectricalHigh
Summary: IBC 1008.3.3 explicitly requires an emergency electrical system to automatically illuminate electrical equipment rooms in the event of a power supply failure. The drawing details a new enclosed electrical room housing 'NEW LPBB' (New Lighting Panelboard B). General Note 2 states that emergency lights are visually represented on the plan by 'HALF-TONE SHADED FIXTURES'. The 'NEW LPBB' room does n...
Why it matters: Failing to provide emergency lighting in an electrical equipment room creates a severe safety hazard for maintenance personnel attempting to safely access, troubleshoot, or operate the panelboard during a power outage. This noncompliance will result in a failure during life-safety inspections and...
Suggested next step: Please revise the lighting plan to add dedicated emergency illumination (a half-tone shaded fixture equipped with a 90-minute battery) inside the 'NEW LPBB' electrical equipment room, in compliance with IBC 1008.3.3.
RFI draft: Please revise the lighting plan to add dedicated emergency illumination (a half-tone shaded fixture equipped with a 90-minute battery) inside the 'NEW LPBB' electrical equipment room, in compliance with IBC 1008.3.3.
Exterior Exit Discharge Illumination Programmed to Shut Off at 11 PMElectricalHigh
Summary: The "LIGHTING CONTROL EXECUTIVE SUMMARY" states that the exterior building mount lighting is programmed to automatically turn "OFF AT 11PM" and "ON AT 6AM". Additionally, the Bus Garage lighting control panel specifies that the South Parking Lot (Channel B) turns off from 11 PM to 4 AM. Because interior spaces such as the Gym and Restrooms operate on occupancy sensors (implying the building can...
Why it matters: If an emergency requires evacuation between 11 PM and 4 AM while the building is occupied, the occupants would be forced to exit into completely dark exterior paths and parking lots. This creates a serious life-safety hazard and violates IBC 1008.2 and 1008.2.3, which require continuous illuminat...
Suggested next step: Please revise the exterior lighting control sequences and panel schedules to ensure that the required path of exit discharge remains illuminated at all times the building is occupied, per IBC 1008.2.3. Consider incorporating emergency lighting bypass relays, dedicating specifi...
RFI draft: Please revise the exterior lighting control sequences and panel schedules to ensure that the required path of exit discharge remains illuminated at all times the building is occupied, per IBC 1008.2.3. Consider incorporating emergency lighting byp...
This is an anonymized example. Findings shown are excerpts for illustration. Actual project details have been modified to protect client confidentiality.
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