How Long Does Exterior Paint Last in Montana?
TL;DR: Expect roughly 7-10 years for premium systems with proper prep and maintenance, but high-exposure elevations can shorten cycles.
Expert Answer
Durability is determined by prep quality and the coating system selected for your substrate. South and west elevations typically age faster due to UV intensity. Homes with deferred caulking and moisture intrusion often fail early even when topcoat quality is good.
Signs It Is Time to Repaint
- Visible chalking, fading, or uneven sheen.
- Cracking around joints, trim lines, and sun-facing walls.
- Peeling at edges, soffits, and moisture-prone zones.
- Persistent mildew that returns quickly after cleaning.
For timing windows, review best time to paint in Montana.