Plans/specs/code win
TinnerFlow does not override plans, specs, approved submittals, code, manufacturer instructions, or foreman direction.
Ask before modifying
Ask before cutting, drilling, rerouting, blocking access, covering dampers, changing hanger/support layout, or modifying duct in the field.
High-risk items slow down
Fire/smoke dampers, grease duct, rated walls, seismic bracing, structural attachments, and equipment clearances are not guesswork.
Use the Field Rescue button
If you are stuck, search the 648-answer verified starter bank first so you can ask a better question before making a field move.
Answer status labels
What the labels mean
TinnerFlow does not pretend every field condition has one universal answer.
Verified starter
Good field starter guidance. Still verify job rules and foreman direction.
Needs journeyman review
Useful route, but should be polished with field-specific trade input before treated as final.
Project-specific route
Exact answer depends on approved drawings, specs, manufacturer instructions, code/AHJ, or pressure/seismic/rated details.
Code/manufacturer-dependent route
Used for dampers, grease duct, rated assemblies, manufacturer systems, and other high-risk work.