Knauf Ecobatt R-11 Kraft Faced Fiberglass Insulation Batts are a flexible, cost-effective way to boost your home’s thermal comfort. Perfect for walls, ceilings, and between-floor applications, these batts help your heating and cooling systems run more efficiently—saving energy without turning your project into a budget soap opera. If you require delivery to ID, MT, OR or WA, please select that delivery zone as pricing and delivery to those states may vary.

Knauf EcoBatt Fiberglass Insulation Batts with ECOSE Technology are a flexible glass mineral wool batt insulation made from sand and over 50% recycled glass bottles bonded with ECOSE Technology. Fiberglass insulation is the most cost effective way to increase thermal performance. By reducing energy usage, fiberglass insulation allows your heating and cooling systems to operate with greater efficiency, which decreases energy use, may reduce your energy bills and limits the release of greenhouse gases into the atmosphere. Fiberglass insulation helps you — and all of us — do more while consuming fewer resources.

Key Features & Design

• GREENGUARD Gold certified to be formaldehyde-free.
• Naturally brown, eco-friendly binder made from corn, sand, and recycled glass (no added dyes).
• Soft to the touch, easy to cut, and less itchy for a more comfortable installation.
• Third-party certified to include a minimum of 50% post-consumer recycled content.
• Excellent sound control—great for between floors and interior walls in spaces like bathrooms, kitchens, laundry rooms, family rooms, bedrooms, and theatre rooms.

Sizes & Coverage

• 3.5" x 15" x 48" — 160 Sq Ft/Bag, 32 Batts/Bag
• 3.5" x 15" x 93" — 155 Sq Ft/Bag, 16 Batts/Bag
• 3.5" x 15" x 105" — 175 Sq Ft/Bag, 16 Batts/Bag
• 3.5" x 23" x 48" — 245.33 Sq Ft/Bag, 33 Batts/Bag
• 3.5" x 23" x 93" — 237.67 Sq Ft/Bag, 16 Batts/Bag
• 3.5" x 16" x 96" — 170.67 Sq Ft/Bag, 16 Batts/Bag
• 3.5" x 24" x 48" — 256 Sq Ft/Bag, 32 Batts/Bag
• 3.5" x 24" x 96" — 256 Sq Ft/Bag, 16 Batts/Bag