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How do I choose the right insulation for my climate?

In South Jersey's mixed climate, insulated attics should achieve R-49 to R-60 (about 16 to 20 inches of fiberglass or cellulose). For walls, aim for R-13 to R-21 depending on construction. For basements and crawl spaces, R-10 to R-20 is recommended. Choose fiberglass batts for DIY attic projects, blown-in cellulose for irregular spaces, and spray foam for air sealing plus insulation in hard-to-reach areas.

Why It Matters

The right insulation type and R-value for your specific climate maximizes comfort and energy savings while preventing moisture problems.

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