Johns Manville R-30 Unfaced Fiberglass Insulation Roll 15 in. x 25 ft.

$35.21

SKU: BVHI46239 Category:
Description

JM Unfaced Formaldehyde-free fiberglass insulation offers R-values ranging from R-11 to R-38 and provides effective thermal and noise control. Our R-30 unfaced rolls are for easy installation in 16 in. on center 2 in. x 10 in. attics and ceilings. Can be added to existing attic insulation. Unfaced rolls are great for new construction, remodels, walls, floors, ceilings, basements, attics and crawlspaces, and are available for wood or steel stud framing. They can be used with a separate vapor retarder when moisture control is required. JM insulation is made from bonded glass fibers that are dimensionally stable and will not slump within the cavity, settle or break down during normal applications.

  • Johns Manville unlaced bats and rolls effectively control heat flow to the outside and unwanted noise inside.
  • For use in wood-framed attics and ceilings.
  • Rolls are designed for long, unobstructed spaces with 16-in on-center stud spacing.
  • Unfaced/without a vapor retarder- can be added to existing insulation.
  • Improves energy efficiency and provides sound control.
  • JM is a partner of the Seal and Insulate with ENERGY STAR program.
  • SCS Recycled Content certification.
  • GREENGUARD Gold Certified for office indoor air quality and SCS Certified for home indoor air quality.
Shipping & Delivery

Reviews

★★★★☆

"Got the charcoal one and it feels sturdy in the hand. I use it in the garage most evenings. I'm in Boise, ID. Shipping was quick and the item delivered."

Nancy Hall Nancy Hall Jul 11, 2026
★★★★★

"Got the navy version and the compartments keep everything organized. Brought it camping and it held up fine. The strap is a little long for me, easy enough to adjust. I'm in Fresno, CA. Exactly what I needed."

William Bennett William Bennett Jul 13, 2026
★★★★★

"Chose the stainless version and the color matched the listing exactly. Running it through my routine for a month. Glad I went with this one."

Naomi Wilson Naomi Wilson Jun 19, 2026
★★★★★

"Bought the starter kit and the connectors click in securely. Took it to the lake house for the weekend. Would buy again."

Frank Robinson Frank Robinson May 21, 2026
★★★★★

"Chose the larger size and it heats up fast and evenly. Used it during a move and nothing shifted. Worth the money."

Victor Reed Victor Reed Jun 12, 2026
★★★★★

"Got the 2-pack and the color matched the listing exactly. Brought it camping and it held up fine. Solid deal, no regrets."

Carolyn Miller Carolyn Miller Jul 4, 2026
★★★★★

"Ordered the 3-pack on sale and the stitching has held up better than expected. Took it on a road trip last weekend. Worth the money."

Steven Roberts Steven Roberts Aug 4, 2026
★★★★☆

"Ordered the 3-pack on sale and the weight feels balanced and premium. I've had it on the kitchen counter daily. Scent is lighter than I pictured, which I prefer anyway. I'm in Cleveland, OH. No complaints so far."

Susan Cruz Susan Cruz Aug 7, 2026
★★★☆☆

"Went with the small and the screen is sharp and bright in daylight. Used it during a move and nothing shifted. Instructions could be a bit clearer, but I figured it out. Would recommend."

Joshua Clark Joshua Clark Jul 16, 2026
★★★★★

"Got the navy version and the color matched the listing exactly. I use it in the garage most evenings. Worth the money."

Angela Adams Angela Adams May 5, 2026