Division 13 Special Construction

Performance Specification Gap in Division 13 Special Construction submittals

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

Short answer

A measurable performance property in the submittal (rating, capacity, tolerance, efficiency) does not meet what the spec requires. Default grade in Division 13 Special Construction: Blocker.

A measurable performance property in the submittal (rating, capacity, tolerance, efficiency) does not meet what the spec requires. This guide covers how it shows up specifically in Division 13 Special Construction submittals.

What to look for in Division 13 Special Construction

Key performance parameters in Div 13 submittals:

  • Clean room ISO classification (ISO 5 through ISO 8 per ISO 14644-1) - particle count at rest vs operational
  • Air changes per hour (ACH) for clean rooms and controlled environments
  • Room pressurization (Pa positive or negative relative to adjacent spaces)
  • Cold storage temperature range and insulation R-value for envelope panels
  • Pool circulation rate (gpm) and turnover time (hours)
  • Lightning protection zone of coverage - rolling sphere radius per NFPA 780/UL 96A
  • Vault fire rating (hours per ASTM E119 or UL 72)
  • Blast resistance (psi overpressure and duration)
  • Sound isolation - STC (Sound Transmission Class) and NIC (Noise Isolation Class) per ASTM E90/E413
  • Seismic isolation bearing capacity (kips) and maximum displacement (inches)
  • Radiation shielding thickness (mm lead equivalent or concrete density)
  • Storm shelter wind speed rating (mph) and missile impact resistance per ICC 500
  • Flame propagation of clean room wall/ceiling panels per ASTM C1166
  • Pre-engineered building design loads - wind, snow, seismic per ASCE 7 and IBC

How severe is it?

Default grade: Blocker. Always a Blocker when the gap touches life-safety or structural performance.

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

Treat this as a hold. Do not approve the submittal until the sub resolves it, either by providing the specified product and documentation or by routing an approved substitution or or-equal request. Return the relevant spec passage to the sub as a redline.

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

Frequently asked questions

Which performance parameters in Division 13 Special Construction submittals most often fall short of spec requirements?

Clean room ISO classification (ISO 5 through ISO 8 per ISO 14644-1), air changes per hour, and room pressurization in pascals are the most common gaps. Storm shelter wind speed rating in mph and missile impact resistance per ICC 500 are also frequent mismatches. Any gap touching life-safety or structural performance - blast resistance in psi, seismic isolation bearing capacity in kips, or radiation shielding thickness in mm lead equivalent - is always a Blocker.

How do I verify that a Division 13 submittal meets sound isolation and fire rating requirements before fabrication?

Check the submitted STC and NIC values against spec minimums and confirm they reference ASTM E90 and E413 test reports for the actual assembly - not a generic product family. For fire-rated vaults, confirm the rating in hours is documented per ASTM E119 or UL 72. Resolving these gaps before fabrication matters because both assemblies are largely custom; a shortfall discovered after manufacture means scrapping and reordering the system.

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