What do I do when confusing existing duct with new duct on the print?
Print Reading, Tags & LayoutFoundation print-reading starter — verify latest revision/detail
Confirm whether duct is existing or new before installing, demoing, or tying in.
Field checklist
- Check line type and phase notes.
- Look for existing/new/demo labels.
- Compare with field condition.
- Verify tie-in point and shutdown needs.
- Ask if linework is unclear.
Ask foreman
Is this duct existing to remain, existing to demo, or new work?
Do not
Do not cut, connect, or remove duct until existing vs new is verified.
Why it matters
Existing/new confusion causes bad tie-ins, live-system problems, and rework.
Search words: Print Reading, Tags & Layout confusing existing duct with new duct on the print existing new duct print line type phase existing new duct print line type phase foundation field