Because “Close Enough” Always Ends in a Conference Room Post-Mortem
Spec deviations rarely blow up immediately. Instead, they simmer under the surface—until the punch list, the inspection, or the commissioning handoff. And that’s when PMs start whispering to each other: “This vendor doesn’t understand spec risk.”
Where Spec Deviations Creep In
Fire-rated glass shipped with the wrong certification label.
Visible hardware differs from the architect’s visual intent.
Alternate R-values don’t meet envelope modeling expectations.
How PMs React Internally
“They knew this was a spec-driven job. Why cut corners?”
“They didn’t even raise the deviation—they just delivered it.”
“This caused a three-day delay and made us look bad to the client.”
Documentation Gaps That Fuel the Fire
Missing deviation log.
No alternate spec sheet or test data.
Substitutions never documented through formal COs.
How to Salvage the Relationship Mid-Project
Acknowledge the deviation before the PM has to discover it.
Provide a one-pager: spec line, deviation summary, approval path.
Flag next steps clearly: “Here’s what we can do in 72 hours.”
Conclusion
Spec deviation isn’t a product issue—it’s a process failure. PMs will forgive a mistake—but not if it makes them look unprepared in front of the client.
