Exterior · definition
Sealant at trim-to-siding and penetration joints. The wrong joints (e.g., siding butt-to-trim where it should drain) trap water — caulking is detail-specific.
Source: Sherwin-Williams — Exterior Surface Preparation FAQs
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.