Knauf Ecobatt R-49 Kraft Faced Fiberglass Insulation Batts deliver dependable thermal performance for walls and between-floor spaces. This Kraft-faced batt uses ECOSE Technology and is made from sand and over 50% recycled glass bottles, helping you boost energy efficiency without sacrificing comfort. Delivery pricing may vary for ID, MT, OR or WA—please select the appropriate delivery zone.

Key Features & Design

• R-49 Kraft Faced Fiberglass Insulation Batts designed for strong thermal performance and easy installation in walls and between floors.
• ECOSE Technology binder provides a more sustainable insulation option while maintaining excellent performance.
• Materials: Fiberglass insulation with kraft facing, made from sand and over 50% recycled glass bottles.
• Eco-friendly binder: Naturally brown, corn- and sand-based binder with recycled glass (no added dyes).
• GREENGUARD Gold certified to be formaldehyde-free, contributing to a healthier indoor air environment.
• Soft to the touch, easy to cut, and less itchy: A user-friendly install experience that doesn’t require a thick skin—just a steady hand.
• Post-consumer recycled content: Third-party certified to include a minimum of 50% post-consumer recycled content.
• Sound control: Provides great sound control, ideal for between floors and interior walls such bathrooms, kitchens, laundry rooms, family rooms, bedrooms, and theatre rooms.
• Sizes (all on one SKU):
  • 13.75 in x 16 in x 48 in — 32 sq ft per bag; 6 batts per bag
  • 13.75 in x 19 in x 48 in — 38 sq ft per bag; 6 batts per bag
  • 13.75 in x 24 in x 48 in — 48 sq ft per bag; 6 batts per bag

Perfect for upgrading insulation in existing homes or new builds, these batts balance performance with responsible materials. If you’re chasing energy savings and quieter rooms, this is the fiberglass insulation you can trust—without the drama.