What Is R-Value? A Contractor’s Guide to Attic Insulation

As an insulation contractor working across Sonoma County, I get this question constantly: “What’s a good R-value for attic insulation?” It’s one of the most important — and misunderstood — parts of home energy efficiency. If you’re installing insulation in your attic, understanding R-value can make the difference between year-round comfort and wasted money. In […]