Johns Manville R-19 Fiberglass Insulation Roll (39.166-ft L X 15-in W X 6.5-in D)

Discover R19 Kraft Fiberglass Insulation, a high‑performance roll system engineered for residential and light‑commercial projects. Each roll measures 6.5 inches thick, 15 inches wide and 39 feet long, delivering ample coverage for walls, floors and attic spaces. The kraft‑faced barrier provides a reliable vapor‑control layer while the sturdy tabs make stapling to studs quick and tidy. Designed to boost comfort, this insulation helps maintain steady indoor temperatures year‑round.

Why choose this insulation? Its R‑19 rating cuts heating and cooling expenses, while the dense glass fibers absorb sound, creating a quieter living environment. The formaldehyde‑free formulation safeguards indoor air quality, and the GREENGUARD® certification guarantees low chemical emissions for healthier homes.

• R‑19 thermal rating: Maximizes energy efficiency and reduces utility bills in walls, ceilings and floors.
• Kraft vapor barrier: Acts as a moisture‑resistant skin, protecting structures from condensation and mold growth.
• Easy‑install tabs: Pre‑punched staples simplify fastening to wood framing, speeding up every installation.
• Sound‑absorbing glass fibers: Diminishes airborne noise, perfect for basements, garages and multi‑family units.
• GREENGUARD® certified: Ensures superior indoor air quality, ideal for homes seeking a healthier environment.

Ready for any project: Whether you’re insulating exterior sidewalls, basement partitions, garage enclosures or attic cavities, these rolls can be trimmed to any length for a seamless fit. The resilient glass fibers resist rot, mildew and degradation, delivering lasting performance. Upgrade your building envelope with this dependable, eco‑friendly insulation solution and experience the comfort of a well‑sealed, energy‑smart home.