- Some stock photographs may show options that are not included. Please check product description.
3-1/2-Inch X 15-Inch X70 R11 Kraft Faced Roll Insulation
- Mfg.#
- KR41TAK
- Sku#
- 1834936
- Preferred by professional installers concerned with quality, appearance, and productivity
- Excellent acoustical properties reduce sound transmission in the home when properly installed in partition walls and ceiling and floor systems
- Highly resilient insulation recovers quickly to full thickness for a snug fit and superior finished aesthetics
- Consistent quality materials made of resilient fibers cut easily, install fast with low dust
- Durable facing resists tears and is marked in 1 ft increments for faster field fabrication
* Estimated stock levels as of Fri, Apr 10, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.
Description
Knauf insulation EcoRoll® glass mineral wool insulation made with Ecose® technology contains a high concentration of one of the world most abundant resources - sand and at least 60% post-consumer recycled bottle glass bonded with Ecose® technology. Knauf insulation Ecose® technology assures that no phenol, no formaldehyde, no acrylics or artificial colors are used to manufacture EcoRoll® insulation. the consistent quality, low dust and easy cutting resilient fiber make EcoRoll® the preferred choice.
EcoRoll insulation is a cost-effective thermal and acoustical barrier for energy-efficient construction. EcoRoll insulation can be used in new and retrofit wood and metal frame applications in residential, commercial and manufactured housing structures
Specifications
General
| Color | Brown |
|---|---|
| Facing | Kraft Faced |
| Install guide | https://res.cloudinary.com/knauf-insulation/image/upload/v1709598037/knauf%20insulation/batt%20insulation/ecobatt/standard/literature/knauf-ecobatt-insulation-installation-guide-english.pdf |
| Material | Fiberglass |
| Rating | R-11 |
| Type | Fiberglass Insulation |
| Usage Location | Attic, Basement, Ceiling, Crawlspace, Wall, Floor |
Dimensions
| Length | 70.5 in |
|---|---|
| Square Feet | 50 sq-ft |
| Thickness | 3.5 in |
| Width | 15 in |
Manufacturing Details
The following information is subject to change without notice
| Country of Origin | USA |
|---|---|
| Manufacturer Warranty | Limited |
| Shop USA | Yes |
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