Helonic
Feature

Egress path compliance

Reviewed by Manas GandhiOctober 2026Feature overview

Helonic is an AI construction drawing analysis platform for preconstruction teams using Helonic for egress compliance.

Verify egress paths meet IBC requirements for travel distance, width, and dead ends. Helonic analyzes floor plans against code requirements to catch life safety egress issues before plan review submissions.

Why does egress compliance matter?

Egress non-compliance is the most common reason for plan review rejection.

FigureWhat it measures
45%Rejections that are egress-related
$30KAverage redesign cost after permit rejection
IBC Ch.10Aligned with the International Building Code
100%Exits validated for every occupancy

How does Helonic go from floor plans to an egress report?

Helonic measures travel paths from the most remote point to the exit discharge and flags lengths, widths, and exit counts that miss IBC Chapter 10.

  1. Parse floor plans. The AI reads architectural floor plans to identify corridors, doors, stairwells, exit discharge paths, and room occupancy designations.
  2. Calculate occupant loads. Based on room areas and occupancy classifications, the system calculates occupant loads per IBC Table 1004.5 to determine required exit capacity.
  3. Trace egress paths. Every possible egress path is traced from the most remote point to the exit discharge, measuring travel distance, common path of travel, and dead-end lengths.
  4. Report violations. Any path that exceeds IBC limits for travel distance, dead-end length, or exit width is flagged with exact measurements and code references.

What egress rules does Helonic verify?

Helonic verifies IBC Chapter 10 items including travel distance, number of exits, corridor width, and dead-end limits on every floor.

  • Travel distance calculation. Measures the actual walking distance from the most remote occupiable point to the nearest exit, checking against IBC maximums based on sprinkler status and occupancy type.
  • Common path verification. Identifies sections where occupants have only one path available before reaching a point where two distinct paths diverge, ensuring compliance with IBC Section 1006.2.1.
  • Dead-end corridor detection. Flags corridors that exceed the 20-foot (or 50-foot with sprinklers) dead-end limit where occupants could become trapped during an emergency.
  • Exit width compliance. Calculates required exit width based on occupant load and verifies that doors, corridors, and stairways provide adequate capacity per IBC Section 1005.
  • Load vs exit capacity. Cross-references calculated occupant loads with the total exit capacity to ensure sufficient exits are provided, including the loss-of-one-exit scenario.
  • Exit separation verification. Checks that required exits are separated by at least one-half (or one-third) the maximum diagonal distance, ensuring exits are not clustered together.

Why do egress misses force redesign?

Egress non-compliance is the single most common reason for plan review rejection by building departments. When a design fails egress review, it often requires significant architectural redesign such as moving walls, widening corridors, or adding stairwells, cascading changes across every discipline.

Catching these issues before submittal saves weeks of review cycles and avoids the expensive redesign work that follows a rejection. Helonic gives architects and code consultants an automated first pass that catches the issues plan reviewers will flag.

Frequently Asked Questions

How does Helonic check egress travel distance?
Helonic traces every egress path on the architectural floor plans from the most remote occupiable point to the exit discharge and measures the actual walking distance. That distance is checked against the IBC maximum for the occupancy type and sprinkler status. Any path over the limit is flagged with the measured length and the code reference.
How are occupant loads calculated for egress design?
Occupant load is the floor area of each space divided by the occupant load factor for its function in IBC Table 1004.5. Helonic calculates it from room areas and occupancy classifications on the plans. It then uses that load to determine the required exit capacity and width per IBC Section 1005.
What is the IBC dead-end corridor limit?
The base IBC limit is 20 feet, and many occupancies may extend it to 50 feet when the building is fully sprinklered. Helonic flags corridors that exceed the applicable dead-end limit, since those are spots where occupants can be trapped with only one way out.
What is common path of egress travel?
Common path of egress travel is the portion of the route where occupants have only one way to go before reaching a point where two separate paths to exits diverge. IBC Section 1006.2.1 limits its length. Helonic identifies those single-path segments on the floor plans and checks them against the limit.
How far apart do required exits need to be?
Under the IBC, where two exits are required they must be separated by at least one-half of the maximum overall diagonal of the building or area served, or one-third in a fully sprinklered building. Helonic checks that separation so exits are not clustered together. It also cross-checks total exit capacity against the occupant load, including the scenario where one exit is lost.
MG

Manas Gandhi

Co-founder & CTO, Helonic

Manas is the co-founder and CTO of Helonic, where he leads engineering and AI research for construction drawing analysis. He works directly with structural, MEP, civil, and fire protection engineers to translate the way they review drawings into AI systems that flag the issues that actually matter in the field. Before Helonic, he built machine learning pipelines for technical document understanding and has spent the last several years interviewing licensed design engineers and discipline leads to ground product decisions in real practice rather than industry assumptions.

Areas of focus
  • AI for technical document understanding
  • Cross-discipline coordination workflows
  • Code compliance automation (IBC, NEC, NFPA, IPC, IMC, ASCE)
  • Structural and MEP drawing review systems

How this page was researched: Egress checks reference International Building Code (IBC) Chapter 10, including Table 1004.5 for occupant load, Section 1005 for egress width, and Section 1006.2.1 for common path of egress travel, applied to architectural floor plans.

Last reviewed by Manas Gandhi · October 2026

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