Core terms · definition
Temporary barriers, zip walls, and negative-air setups that keep demolition and sanding dust out of occupied areas. Standard practice for live-in remodels and required where lead is present.
Source: U.S. EPA — Renovation, Repair & Painting Program
Where this term lands on a Columbus budget
The cost pages carry the current local ranges, and the guides explain what moves them. A published range becomes a project number only after someone looks at the site.