insulation
Rigid mineral wool board
Compressed-fiber rigid panels, typically 4" thick, used as continuous exterior insulation. Vapor-open, fire-resistant, and dimensionally stable.
Cost tier
PREMIUM
Cost / sqft
$1.5–$3.5
Install
trade
Durability
premium
Maintenance
low
Moisture
good
Cost notes
Common in passivhaus and high-performance assemblies.
Aesthetic
- Finish: concealed
- Color range: gray-brown
- Visual weight: light
Climate suitability
✓ Hot-humid
✓ Hot-dry
✓ Mixed-humid
✓ Mixed-dry
✓ Cold
✓ Arctic
Source
Architectural Graphic Standards — Architectural Graphic Standards (Ramsey/Sleeper) — Materials chapter
Tags: mineral-wool, rigid, vapor-open, fire-resistant