High-Density R-21 Unfaced Fiberglass Insulation Batt (103.98 sq. ft. Bag)

Upgrade your home’s thermal performance and acoustic comfort with this high-density R-21 fiberglass insulation. Specifically designed for 2x6 wood framing, these 23-inch wide batts provide a friction-fit installation that stays in place without the need for fasteners.

Because it is unfaced, this insulation is ideal for interior wall soundproofing or for use in applications where a separate vapor retarder is already present.

Key Features

Superior Thermal Efficiency: R-21 rating provides high-performance heat resistance for a more comfortable home and lower energy bills.

Acoustic Comfort: Significantly reduces noise transfer between rooms and from the outdoors.

Easy Installation: Pre-cut batts at 23" width fit snugly between studs; no stapling required.

Fire Resistant: Naturally non-combustible fiberglass composition.

Formaldehyde-Free: Safe for indoor air quality and easy to handle.