Knauf Ecobatt R-38 HD Unfaced Fiberglass Insulation Batts are a flexible, high-density solution for modern homes that demand solid thermal performance without the itch of traditional batt insulation. Available in all sizes, it’s designed to fit a range of spaces—from walls to between-floor cavities.

Key Features & Design

• Materials & Technology: Fiberglass insulation with ECOSE Technology, made from sand and over 50% recycled glass bottles, bonded with a sustainable binder.
• Thermal Performance: R-38 HD unfaced batt insulation to help improve energy efficiency and reduce heating and cooling loads.
• Greenguard Gold: Certified to be formaldehyde-free for healthier indoor air.
• Eco-Friendly & Recycled Content: Third-party certified to include a minimum of 50% post-consumer recycled content.
• Texture & Handling: Naturally brown binder (no added dyes), soft to the touch, easy to cut, and less itchy.
• Sound Control: Provides great sound control; suitable for between floors and interior walls (bathrooms, kitchens, laundry rooms, family rooms, bedrooms, theatre rooms).
• Delivery Note: If you require delivery to ID, MT, OR or WA, please select that delivery zone as pricing and delivery to those states may vary.

Size & Coverage

• 10.25" x 15" x 48" — 40 sq ft per bag, 8 batts per bag
• 10.25" x 23" x 48" — 61.33 sq ft per bag, 8 batts per bag