Johns Manville R-30 Attic Kraft-Faced Fiberglass Batt Insulation, 86.62-sq ft Coverage (23.625-in W x 48-in L)
Regular price $129.12R-30 Kraft-faced fiberglass attic batt insulation
Formaldehyde-free Johns Manville R-30 kraft-faced fiberglass batts deliver high thermal performance for attics and cathedral ceilings. Precut to fit 24-in stud spacing, they add moisture control with a built-in vapor retarder while helping reduce sound transmission.
Key Features:
- High R-Value Performance: R-30 thermal rating for improved energy efficiency in attics and ceilings
- Built-In Moisture Control: Kraft facing provides an integrated vapor retarder
- Formaldehyde-Free Fiberglass: Health-conscious material with GREENGUARD Gold certification
- Easy Installation: Precut batts fit 24-in cavities; press in place and staple tabs if needed
- Durable & Noncorrosive: Will not rot or mildew; safe around pipes, wiring, and metal studs
Specifications Table:
| Specification | Details |
|---|---|
| Coverage Area (Sq. Feet) | 86.62 |
| Length (Inches) | 48 |
| Width (Inches) | 23.625 |
| Thickness (Inches) | 10.25 |
| Maximum R-Value | 30 |
| Stud Spacing (Inches) | 24 |
| Faced/Unfaced | Kraft faced |
| Insulation Type | Fiberglass |
| Formaldehyde Free | Yes |
| For Use in Attics | Yes |
| For Use in Ceilings | Yes |
| For Use in Walls | No |
| For Use in Floors | No |
| Sound Barrier | Yes |
| Vapor Retardant | Yes |
| Framing Type | Wood studs |
| Package Type | Multi-pack |
| Package Count | 11 |
| Total Package Quantity | 11 |
| Multi-Pack Quantity | 4 |
| R-Value per Inch | 2.9268 |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Warranty | 1-year limited |
| Bag Dimensions (L x W x D) | 24.1 x 20 x 50 |
| Package Weight (lbs.) | 47.3 |
| Fits 2 x 4 Walls | No |
| Fits 2 x 6 Walls | No |
| For Use in Basements | No |
| For Use in Crawlspaces | No |
| For Use in Doors | No |
| For Use in Duct | No |
| For Use in Electrical | No |
| For Use in Garage Doors | No |
| For Use in Masonry | No |
| For Use in Plumbing | No |
| For Use in Vents | No |
| For Use in Windows | No |
| CA Residents: Prop 65 Warning(s) | No |
| UNSPSC | 11162400 |
Frequently Asked Questions (FAQ):
Q: Can these batts be used in cathedral ceilings?
A: Yes. They feature a thinner profile option designed for cathedral ceilings.
Q: Do the batts include a vapor barrier?
A: Yes, the kraft facing acts as a built-in vapor retarder for moisture control.
Q: What cavity spacing do they fit?
A: They are precut for 24-inch stud/joist spacing with each batt 23.625 inches wide.
Q: Are they safe for indoor air quality?
A: Yes. They are formaldehyde-free and GREENGUARD Gold certified.
Q: How much area does one package cover?
A: The package covers 86.62 square feet and includes 11 precut batts.
Elevate Your Attic with Quiet, Cozy Performance
These R-30 batts wrap your home in a hushed, insulating layer, refining comfort while keeping lines clean and purposeful. The warm kraft facing adds a tailored look that feels considered in cathedral ceilings. Pair with crisp white rafters and minimal hardware for a streamlined install that complements modern and classic spaces alike. It’s a smart, luxurious foundation for energy-efficient living.
Upgrade your attic with R-30 performance and built-in moisture control—choose Johns Manville batts today.
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