Key takeaways
- Sealed spaces usually insulate the walls
- Vented spaces usually insulate the floor
- Moisture control comes before insulation
- R-values depend on climate and local code
Insulation helps comfort, but only in a dry space.
Sealed or vented
A sealed space is usually insulated on the walls. A vented space is insulated under the floor.
Moisture first
Wet insulation does little and holds water against the wood.
How much
The right R-value depends on your climate and the local building code.
Related services
Questions about your own crawl space? Call or text 800-207-0499, or use the estimate form below.