Professional-grade mineral wool batts deliver R-30 thermal performance in a semi-rigid form that’s easy to cut and fit. Unfaced and designed for wood studs, they provide fire resistance, sound control, and moisture resistance for durable comfort.
Key Features:
High R-Value Performance: R-30 thermal rating with approximately 4.2 R per inch for energy savings
Fire and Mold Resistant: Non-combustible, non-corrosive mineral wool helps inhibit mold growth
Easy Installation: Semi-rigid batts are simple to measure, cut, and fit around irregularities
Sound Control: Dense fibers help reduce noise transfer through walls and ceilings
Formaldehyde-Free: Safer indoor air with unfaced, vapor-retarder-free construction
Specifications Table:
Specification
Details
Series Name
Thermafiber UltraBatt
Insulation Type
Mineral wool
Faced/Unfaced
Unfaced
Maximum R-Value
30
Thickness (Inches)
7.125
Width (Inches)
15
Length (Inches)
47
R-Value per Inch
4.2
Framing Type
Wood studs
Sound Barrier
Yes
Formaldehyde Free
Yes
Vapor Retardant
No
ENERGY STAR Certified
Yes
Warranty
3-year limited
Stud Spacing (Inches)
16
Package Type
Individual pack
Package Count
1
Total Package Quantity
1
Coverage Area (Sq. Feet)
14.7
Bag Dimensions (L x W x D)
25 x 15 x 47
Package Weight (lbs.)
24
CA Residents: Prop 65 Warning(s)
Yes
UNSPSC
11162400
Frequently Asked Questions (FAQ):
Q: Is this insulation faced or unfaced? A: Unfaced—there is no vapor retarder attached.
Q: Where can it be installed? A: Suitable for wood-stud ceilings and floors; designed for 2x8 exterior wall cavities.
Q: What are the piece count and coverage per pack? A: Typically 3 pieces per pack with around 22.5 sq. ft. coverage for the 23-in width variant; coverage may vary by width.
Q: Is it fire resistant? A: Yes, mineral wool is non-combustible and provides fire resistance.
Q: Is it formaldehyde-free? A: Yes, it is formaldehyde-free.
Elevate Comfort with Sculpted Mineral Wool Texture
These Thermafiber UltraBatt panels bring a refined, architectural layer to your build—quieting rooms and wrapping them in thermal ease. The dense, gridded surface is a subtle design nod to craft and performance, working beautifully behind millwork and gypsum. Use it to create serene bedrooms or media spaces where sound and temperature are exquisitely controlled. It’s a discreet essential that underpins a truly luxurious home experience.
Choose Thermafiber UltraBatt R-30 today for easier installs, safer walls, and lasting energy savings.
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