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Knauf Insulation

Ecofill Fiberglass Blowing Insulation 28.6-Pound

Mfg.#

106449

Sku#

2157626

• Unbonded, virgin fibrous glass blowing insulation having a high degree of post-consumer recycled content, designed for new construction, weatherization, and retrofitting existing housing
• Can be installed in a variety of R-values, ranging from R11 through R61
• Can be used to dense-pack sidewalls using the drill and fill technique, common in retrofitting homes or in-home weatherization activities
• Fills all gaps and voids in wall cavities, creating a thermal barrier against outside air and better temperature control
• Greater resistance to air infiltration than cellulosic materials

* Estimated stock levels as of Wed, Apr 1, 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.