Crawlspace Insulation Maintenance
Insulating your crawlspace is one of the most effective ways to improve energy efficiency, maintain indoor air quality, and prevent costly structural issues. Crawlspace insulation helps regulate your home’s temperature and acts as a barrier against moisture and pests. Homeowners in humid environments like Savannah and Bloomingdale must take extra precautions to maintain this insulation year-round.
Step-by-Step Guide to Crawlspace Insulation Maintenance:
1. Inspect the Crawlspace Twice a Year
Do a full inspection in spring and fall. Look for insulation that is sagging, wet, missing, or chewed. Note any signs of pests or water damage.
2. Identify the Type of Insulation Installed
Most homes use fiberglass batt, rigid foam board, or spray foam insulation. Batt insulation is the most common in crawlspaces and is more prone to sagging if not secured properly.
3. Replace or Reinforce Sagging Batt Insulation
Remove any insulation that is wet or has lost its shape. Replace with new fiberglass batts and secure them between joists using support rods or wire insulation hangers.
4. Seal Gaps and Cracks
Use spray foam or caulk to seal any air leaks around crawlspace vents, plumbing penetrations, and along the sill plate. This helps keep pests and moisture out.
5. Add Vapor Barrier on Floor (if not already present)
Install a continuous plastic vapor barrier across the entire crawlspace floor to block moisture from the ground. This reduces stress on your insulation and helps maintain a dry environment.
6. Consider Rigid Foam for Walls
For improved thermal performance, you may install rigid foam board on crawlspace walls. Be sure to follow local code requirements for fire barriers if using foam board.
7. Monitor Humidity
Use a digital hygrometer to track humidity levels in the crawlspace. High humidity accelerates insulation degradation and invites mold growth.
Maintenance Tip:
Avoid storing items in the crawlspace that block airflow or rest directly on insulation. Keep a clear path for inspection and airflow circulation.
Contributed by Moreways Solutions LLC. If you need our help, contact us today.