Division 13 Special Construction

Detail or Installation Mismatch in Division 13 Special Construction submittals

By Deviation Check Editorial Team. Last reviewed June 1, 2026.

Short answer

The submitted detail, dimension, anchorage, or installation method differs from what the spec or drawings require. Default grade in Division 13 Special Construction: Fix and Resubmit.

The submitted detail, dimension, anchorage, or installation method differs from what the spec or drawings require. This guide covers how it shows up specifically in Division 13 Special Construction submittals.

What to look for in Division 13 Special Construction

  • Clean room ceiling grid module size or layout differs from design
  • HEPA/ULPA filter size, quantity, or placement differs from room layout
  • Cold storage panel joint detail - tongue-and-groove vs cam-lock vs other
  • Cold storage door type - sliding vs hinged, heated frame threshold detail
  • Pool gutter system - perimeter overflow type differs (deck-level vs roll-out)
  • Pool structural shell - thickness or reinforcing differs from structural drawings
  • Lightning protection conductor size, material, or routing path differs
  • Air terminal (lightning rod) spacing exceeds NFPA 780 maximum
  • Radiation shielding lap joints - overlap dimension below design minimum
  • Seismic isolation bearing anchorage detail differs from structural drawings
  • Storm shelter connection to foundation - anchor bolt size/spacing differs
  • Pre-engineered building secondary framing member size or spacing differs
  • Vapor barrier location in cold storage panel assembly (warm side required)

How severe is it?

Default grade: Fix and Resubmit. Escalates to Blocker when the difference affects a fire-rated, seismic, or structural assembly.

Deviation Check assigns a default per category and escalates or de-escalates based on the spec, always showing its reasoning. See the Division 13 severity rules.

What the PM should do

Stamp the submittal Revise and Resubmit. Mark the deviation, return the relevant spec passage as a redline, and have the sub correct and re-send before fabrication or installation.

Back to the Division 13 Special Construction hub, browse all divisions, or start a review.

Frequently asked questions

What installation detail mismatches should I look for in Division 13 Special Construction submittals for clean rooms and cold storage?

For clean rooms, check that HEPA/ULPA filter size, quantity, and placement match the room layout, and that the ceiling grid module size matches the design. For cold storage, confirm the panel joint detail - tongue-and-groove versus cam-lock - and that the vapor barrier is located on the warm side of the panel assembly as required. Cold storage door type (sliding versus hinged) and heated frame threshold detail are also common mismatch points.

When does a detail or installation mismatch in a Division 13 submittal escalate to a Blocker?

The deviation escalates to Blocker when it affects a fire-rated, seismic, or structural assembly. Specific examples include seismic isolation bearing anchorage that differs from the structural drawings, storm shelter anchor bolt size or spacing that deviates from the foundation connection, and radiation shielding lap joint overlap dimensions below the design minimum. Lightning rod spacing that exceeds the NFPA 780 maximum also escalates because it affects the zone of protection.

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