Why Retrofitting Your Attic Matters 💡 | Save 10–25% on Energy Bills! Why does retrofitting your attic with Greenfiber Cellulose matter? Simple it’s one of the smartest investments you can make in your home. 🏠 ✅ Energy Efficiency: Stop letting your conditioned air escape! With modern insulation upgrades, you can expect 10–25% lower energy bills year-round. ✅ Building Code Compliance: Older homes often only had R-19 in the attic. Today’s standards call for R-48 to R-60, depending on your climate